How to Read an Earth Log

What an Earth Log Is

In earlier times, captains of ships kept journals of their voyages — the day's weather, the ship's bearings, the events that befell the crew. Aircraft of the same era carried sealed recorders that preserved the readings of a flight even when the aircraft itself did not survive its journey. The Earth Log is in that tradition. The ship is the planet. The voyage is human civilization. The log is intended to outlast its author.

An Earth Log is a single entry in a long chronological record of human life on Earth, written by one author during his lifetime, and inscribed permanently on a public, distributed ledger called the Bitcoin SV blockchain. Each entry is given a fixed structure: a heavy block of structured information about itself, and a body of plain prose. Once an entry is inscribed, the inscription cannot be altered. If the author later finds that an earlier entry was wrong, the response is not to edit it but to write a new entry that names the correction. The honest record is the full sequence, including the parts the author has since revised his understanding of.

The entries are written for two readerships at once. The first is people alive during the author's lifetime, who want a perspective on what is happening in their world and on the long arc of how it came to be that way. The second is readers — human, post-human, artificial, or otherwise — who may encounter these entries long after the civilization that produced them has changed beyond recognition or ceased to exist. The same prose serves both. The structured metadata around the prose is what allows the corpus to be navigated by either audience.

This guide explains how to read an Earth Log. It is laid out in three parts: what is universal — true for every reader of any Earth Log, in any era — and then two shorter parts, one for present-day readers and one for far-future readers, each addressing the specific questions that audience is most likely to bring.

The Anatomy of an Entry

Every Earth Log follows the same shape. The shape is intentional. A reader who learns it once can read any entry with the same eye, and a reader far in the future can read an entry of which only fragments survive and still know what part of the original they are looking at.

At the top of every entry sits a metadata block — a structured set of labelled fields giving information about the entry: who wrote it, when, in which language, where in the universe, on what topic, in what time range, classified under which categories, with which keywords, and at which addresses on the blockchain. The metadata block is heavy. This is intentional. It is the scaffolding that lets the corpus be searched, sorted, and reassembled, on any platform, in any era, by any reader. A future archivist who loads the corpus into a database does not have to read every entry to know what each one is about; the metadata answers the basic questions before the prose begins. The next section of this guide walks through the metadata field by field.

Below the metadata block, separated by a row of dashes, sits an optional COMMENT block. Not every entry carries one. When it does, the COMMENT addresses the reader directly — naming the moment of writing, flagging context the entry assumes, or explaining how the entry sits in relation to the rest of the corpus. The COMMENT is the author talking to the reader before the entry begins.

Below the COMMENT, again separated by a row of dashes, sits the ENTRY body itself. This is the prose. The prose is written to stand on its own, meaning that even if every line of metadata were stripped away, the entry would still read as a complete piece of writing. Some entries are short. Some run to several thousand words. The length is decided by what the topic asks for, not by any external rule.

After the prose, an entry closes with a small signature block giving the author's name, the project's name, the planet, and the year. The signature is the standpoint marker for the entry — a reminder that the words above were written from one person's vantage point at one fixed moment.

Some entries carry a REFERENCES section between the prose and the signature. This is the entry's bibliography, used in entries that draw on external sources — scientific papers, books, public statements, recorded interviews. Bibliographic references are numbered in the order they first appear in the prose. They are entirely separate from the References metadata field higher up, which lists other Earth Log entries this one builds on. The two have the same name and different roles: the metadata block's References points at sibling entries in the corpus, and the bibliography points at sources outside it.

This is the full anatomy: title, metadata, optional COMMENT, ENTRY body, optional REFERENCES, signature. Every entry. Every era.

Reading the Metadata

The metadata block is not decoration. It is the part of the entry that answers, in plain structured form, the kinds of questions a thoughtful reader brings to any document: who wrote this, when, where, about what, in relation to what else, and how do I know it has not been tampered with. The fields are explained below in the order they appear in the inscription. The exact set of values that any given field can hold is not enumerated here — that information is part of the project's evolving conventions, recorded separately and updated as the corpus grows.

EL-ID. A four-digit number, unique to the entry, assigned in the order the entry was written. The first Earth Log is #0001. The numbers run in sequence. An entry's EL-ID is its everyday name — when one entry refers to another, it does so by EL-ID, written with a hash sign and the four digits.

Title. A short descriptive title, chosen by the author, naming the entry's topic.

Author. The person who wrote the entry. Every Earth Log shares the same author. Contributors and guests may be invited in later Earth Logs.

Date Published. The date the entry was written, given in two parallel time systems. The first is the Gregorian Date — the calendar widely used in daily life during the author's time. The second is Cosmic Time, expressed as the number of years that have elapsed since the origin of the universe. The two are given side by side so that an entry can be situated in both human chronology and cosmic chronology with no further work on the reader's part.

Location. The author's geographic location at the time of writing, given in broad terms — the planet, the continent or region — rather than at the level of city or country, unless the country is materially relevant to the topic.

Cosmic Address. A fuller spatial position, working from the largest known structure of the universe down to the planet on which the entry was written. The address proceeds, level by level, through superclusters, clusters, the galaxy, the spiral arm, the local interstellar cloud, the star system, and Earth itself. A reader far enough in the future to have lost the names will still be able to read the structure.

Language. The natural language the entry is written in.

Medium. The form of the work — text, in the case of every standard Earth Log entry.

Series. Each entry belongs to a Series, which groups entries that share a theme or arc — a sustained inquiry into a single subject, told across multiple entries. The Series field is the spine that gathers entries on the same broad topic together.

Purpose. A one-line statement of what the entry is for. Most entries reuse the project's standing purpose statement; entries with a special role — a Register, a Chapter Summary, a Reader's Guide — use a purpose statement specific to that role.

Origin BSV Pay Address and Origin BSV Ordinal Address. Two addresses on the BSV blockchain associated with the inscription itself. The first is where the entry's creation was paid from; the second is the address that holds the inscribed ordinal — the specific small unit of value to which the text is permanently bound. Together they identify the entry's place on the chain at the level of who paid for the inscription and which BSV address the ordinal was initially inscribed.

BSV Blockchain Transaction ID, TXID. The unique identifier the blockchain assigns to an entry the moment it is inscribed. The TXID is the entry's permanent address — the string that allows anyone, anywhere, to look the entry up directly on the chain. At the time the entry is being written, the TXID does not yet exist; it is generated only when the entry is inscribed. The metadata records this with a Pending note. The next Earth Log to be written will then carry this entry's actual TXID in its own metadata, in a field described next.

Preceding Earth Log's BSV Blockchain, TXID. The TXID of the immediately preceding Earth Log. Because each entry's own TXID can only be known after that entry is inscribed, the next entry written carries the previous one's TXID in this field, creating a linked chain of entries that mirrors the structure of the blockchain itself. Each entry points backward by TXID and forward by promise: the next entry will cite this one. The result is that the full corpus can be walked in either direction, log by log, with each step verifiable on chain. Tampering with any inscribed entry breaks the chain visibly at the next entry's Preceding reference. This convention applies from Earth Log #0004 onward; the first three entries pre-date it and are themselves the chain's roots.

BSV Tipping Address. A separate address at which a reader who values the entry can send a payment directly to the author. Tipping is voluntary. The address belongs to the entry itself, meaning a reader's support is attached to the specific work they valued, not pooled across the whole project. It could be used for Licensing fees or other fees.

Subject Timeframe. The chronological range of the topic the entry covers, expressed in three parallel systems. The first is Years Ago, counted from a reference point fixed at the year 2000 of the Common Era, similar to the Before Present convention used in archaeology. The second is Cosmic Time, the number of years elapsed since the origin of the universe. The third is the Gregorian Date. The Subject Timeframe is distinct from the Date Published. The Date Published is when the entry was written; the Subject Timeframe is the span of history the entry talks about. An entry written in 2026 about the formation of the Earth has a Date Published in 2026 and a Subject Timeframe stretching back roughly four and a half billion years.

Category. Each entry sits in exactly one Category, drawn from a small fixed set covering the broadest domains the corpus addresses — cosmology, the planet, life, civilization, the human mind, technology, the future, current affairs, project reference, and a handful of others. The Category is the broadest sorting axis of the corpus. A reader filtering for "everything about the human mind" begins here.

Questions. A small set of durable questions — about the universe, about life, about civilization, about humanity's direction — that the corpus revisits across many entries. Each entry names which of these durable questions it engages with. The set is deliberately short and chosen for endurance: a reader far in the future should still recognize the questions as live.

Tags. A multi-value field of more specific keywords, allowing finer-grained search and filtering than Category or Questions support. The tag set evolves as the corpus grows. Some tags name universal human concerns; others are time-bound vocabulary specific to the era of writing. A future revision of the project's conventions will split the two layers explicitly.

Context. The kind of world the entry is about — early universe, emergence of life, human civilization, industrial civilization, digital civilization, and so on through possible future stages. Each entry carries one Context value. Where Subject Timeframe gives the when in numbers, Context gives the what kind of world.

Cosmic Narrative Stage. A single value placing the entry within one of five canonical stages of the long story the corpus tells — Universe, Life, Intelligence, Civilization, Future. Most entries carry exactly one of the five. Some entries — meta-entries that survey the corpus across stages, or reader's guides like this one — leave the field blank. The label is preserved even when the value is not given, so a reader can see that the schema offered the field at all.

References. A list of other Earth Log entries this entry builds on or cites, given by their EL-IDs. References in the metadata block always points to other Earth Logs, never to outside sources. Outside sources, when present, live in the bibliography at the end of the entry's body.

Corrections. A list of other Earth Log entries that this entry corrects, given by EL-ID. The presence of a correction does not modify the original; the original remains on chain unchanged. The correction is recorded by writing this new entry, and the link between the two is preserved here. The full record is then both entries — the earlier one as a faithful record of what was known and believed at the time of its writing, and the later one as the author's revised understanding.

Copyright. A copyright line naming the author and the year. The copyright applies to the prose; tipping and licensing flow through the BSV addresses described above.

That, in summary, is the metadata block. A reader who understands the fields above can pick up any Earth Log, in any era, and orient themselves before reading a single line of the prose.

For Readers Living in the Author's Time

If you are reading these words during the author's lifetime — that is, in the early decades of the 21st century of the Common Era — your most likely point of entry into the Earth Log corpus is one of three things: a website, a social media post, or a video. These entry points are convenient but not durable. The durable record sits on the Bitcoin SV blockchain. What follows are the practical bridges between the two.

The project's curated reading site is at earthlog.earth. There the entries are presented with their metadata, organized by Series and Cosmic Narrative Stage, and made searchable. The site is the friendliest way to read the corpus today. It is not the canonical record; it is a presentation built on top of the canonical record. If the site is ever lost, the corpus survives.

The canonical record sits on the BSV blockchain and is accessed through a block explorer — a website that allows anyone to look up a transaction by its TXID and view the data attached to it. To verify an entry, copy its TXID from the metadata block, paste it into a block explorer, and read the inscription directly. The text you see there is what was inscribed; if it differs from what the curated site shows, the inscription is the truth of the matter. Several block explorers exist; any of them, asked the same TXID, will return the same inscription, because the inscription itself is on the chain rather than on the explorer.

To walk the corpus backward through time, follow the Preceding Earth Log's TXID field from any entry to the one before it. Look that TXID up. Follow that entry's Preceding field to the one before. Repeat. The chain ends at Earth Log #0004, the first entry to apply the chained-TXID convention; the three entries before that are reachable separately by their own TXIDs, listed in any Register of Inscriptions.

The Registers are a second tool. Each Register of Inscriptions is itself an Earth Log, and lists every entry inscribed up to its own date, with the EL-ID, the date inscribed, the title, the TXID, and the tipping address for each. A Register is the corpus's table of contents at a moment in time. The first Register is Earth Log #0013; new ones are inscribed at intervals as the corpus grows. Any Register is a valid entry point — pick one, and from it you can reach every entry inscribed before it directly, and every entry inscribed afterward by walking the chain forward.

A companion entry-type called Chapter Summaries describes, in one paragraph each, what every preceding Earth Log is about. Where a Register tells you which entries exist, the Chapter Summaries entry tells you what each one is about in plain prose. The first is Earth Log #0014. A reader new to the corpus who wants the gist before committing to any individual entry can read the most recent Chapter Summaries entry first and use it the way a book's table of contents is normally used. In an ordinary book the synopsis comes first; in the Earth Log corpus, where each entry is permanently inscribed as it is finished, the synopsis can only be assembled afterwards. A reader assembling the corpus offline may move the most recent Chapter Summaries entry to the front of their own reading and use it as a normal synopsis.

The BSV Tipping Address on each entry exists for the same reason any writer's tip jar exists: a reader who values the work can support it directly. Sending a tip requires a BSV wallet — a small piece of software that holds and sends BSV — and the entry's tipping address. The fees on the network are fractions of a cent, so tips of any size reach the author without being eaten by intermediate processing. Tipping is voluntary; reading is free.

In a wider sense, the Earth Log corpus is one example of a practice the author has called blocking — publishing on the blockchain, by analogy with publishing on the early internet, which came to be called blogging. The practice is not specific to this project. Anyone with something they want preserved beyond their own lifetime, and paid for directly while they are alive to receive it, can use the same approach. The Earth Log is a working demonstration of what blocking looks like applied to a long-term writing project.

For Readers Discovering These Long After

If you are reading these words long after the author's lifetime — long enough that the websites, the social media platforms, the wallet software, and possibly the language itself have all changed beyond recognition — most of what was practical above no longer applies, and a different orientation is needed.

Begin with where the entry was written. Earth is the third planet from a yellow-dwarf star humans of the author's time called the Sun. The Sun is one of perhaps two hundred billion stars in a barred spiral galaxy humans called the Milky Way. The author wrote on a continent humans called Europe, on a planet whose surface is roughly seventy percent water and which had, at the time of writing, a single technological civilization with a population of approximately eight billion. The Cosmic Address in every Earth Log's metadata gives the fuller spatial position, level by level, in case the names of any of these structures have been lost while the structures themselves remain.

The dates use a calendar called the Gregorian calendar, in which years are counted ordinally from a fixed origin point in the Common Era. The author wrote in the year 2026 of the Common Era, which corresponds to roughly thirteen billion eight hundred million years after the origin of the universe. Each entry carries its date in both systems, so a future reader can convert from human chronology to cosmic chronology directly. The Cosmic Time coordinate is given because human calendars change; the time elapsed since the origin of the universe does not.

The language is English. English is one of the more widely used languages of Earth in the author's time, originally rooted in the British Isles of north-western Europe and carried, through several centuries of expansion, to many parts of the world. If you are reading a translation, the inscribed original on the chain is in English. If a translation contradicts the original, the original is canonical. Future translations into other languages of the same era, or into languages that did not yet exist when the inscription was made, are welcomed; the inscribed original remains the reference.

Units of measurement, where used, are the metric system widely employed in international science of the author's time — the metre for length, the kilogram for mass, the second for time, the kelvin or celsius for temperature, and standard derived units for energy, power, and pressure.

These entries are the work of one author writing from one standpoint at one moment. They are not the consensus of his civilization. They are not an official record of his species. They are not peer-reviewed in the formal sense. They reflect what one thoughtful person observed, thought, and tried honestly to record during his lifetime, with an explicit commitment to distinguishing observation from interpretation from speculation, and with errors corrected by writing new entries rather than altering old ones. That commitment — the Earth Log Oath, recorded in the project's founding documents — is the basis on which the entries are offered. They should be read accordingly: as witness rather than as scripture, as one voice rather than many.

The corpus is preserved on a blockchain. A blockchain, conceptually, is a public record kept jointly by many independent computers, each holding a copy, in such a way that no single computer can alter the record without the others noticing. New entries are added to the record in batches — blocks — and each block is cryptographically linked to the one before it, so that altering an old block would invisibly invalidate every block that came after. The Earth Log entries are inscribed onto this kind of record, on a particular network called Bitcoin SV. The technology of how this is done — the wallets, the explorers, the network itself — may not survive in recognizable form. The principle of a permanent, distributed record will recur, because the problem the technology solves is older than the technology and will outlast it.

Each Earth Log carries the previous Earth Log's identifier in its own metadata. This means that the corpus can be reassembled from any single entry, by walking forward (looking up which later entry cites this one's identifier) and backward (looking up the previous entry whose identifier appears in this one's metadata). If only fragments of the corpus survive, those fragments are still positioned relative to one another by the chain. Even a single recovered entry, with its metadata intact, places itself within the corpus and points to its neighbours.

The entries are immutable once inscribed. If you find two Earth Logs that contradict each other, the contradiction is part of the honest record. The later entry is the author's revised understanding; the earlier one is what he believed when he first wrote. The author chose to leave both rather than to erase one. Read them as two snapshots of one mind across time.

A Note on the Two Audiences

The same prose serves both readers. The metadata around the prose is what makes the corpus navigable in either direction in time — searchable today by readers using databases and websites, reassemblable far in the future by readers using whatever tools the future provides. A present-day reader can ignore the metadata and the entry still reads. A future reader can read only the metadata of an entry whose prose they cannot yet decode, and still know its date, its place, its topic, its author, and its place in the chain. The two layers are designed to support each other.

This is the first entry in a series of Earth Log Reader's Guides. Future entries in the series may explain particular aspects of the project in more depth — the time taxonomy, the chained-TXID provenance, the verification workflow on chain, the relationship of the inscribed corpus to its presentations on websites and other platforms. As with every Earth Log, this entry is fixed once inscribed; if the project's conventions change, a later guide will record the change rather than this one being altered.

A reader picking up an Earth Log for the first time, in any era, has now been given the ground they need to read it. The prose of any individual entry is meant to do the rest.