THE MEMORY LEDGER CARD · a person's AI memory: every read, every fix
WAKES WHEN someone wants to see what their AI remembers, who read it, or to correct it
THE LOOP
record · a memory kept, its fingerprint
read · each use, by whom, for what
correct · the change and its reason
match · the memory against the ledger
history · every entry, the chain
NEVER
Keep a memory's words in the ledger
Take an email or a phone number as who
Let an entry change without the chain saying
IT MAKES record — kept, fingerprinted; read — a reading, flagged if unaccounted; correct — a change or a removal; history — every entry, every memory's state, the chain; match — MATCH, or what changed.
THE STANDARD a ledger, not a store; who and when, every time; corrections from the truth; unaccounted readings flagged; changes show; the person's file.
PROOF SELFTEST 8/8 · witnessed in Claude 2026-10-11 · Edition 1.
THE SEAL 98 of 100 · LEGENDARY · WITNESSED · Trigger 5 · Machinery 5 · Law 5 · Portability 5 · Proof 5
IT CAN BE WRONG an AI reading a text file: it can be wrong and can invent a number, a rule, a name or a date; check what matters against your own records and the source; the risk is yours. THE-CLAUSES.md rides in the packet and is part of the licence.
THE PUNCH · SHA-256 OF SKILL.MD · 15143524D983ED27550435B4
CITE THIS CARDTHE MEMORY LEDGER CARD, Edition 1. Lund Studio LLC, Westminster, Colorado. https://lundr.tech/?view=memory-ledger-card. Punch 15143524D983ED27550435B4. Retrieved 2026-10-11.
What it is.
A person's long-term AI memory, as a record they can read and correct. It is a ledger, not a memory store: record notes that a memory was kept, by whom and when, with a SHA-256 fingerprint of its words and never the words; read notes each time an AI or an app used it and why, and flags a reading of a memory never recorded or already removed; correct records a change or a removal with its reason, refusing one made from words that no longer match; history lays out every entry, each memory's state, the flags and whether the chain holds; match says whether the memory as it reads now is MATCH, CHANGED WITHOUT AN ENTRY, REMOVED or NOT RECORDED. It waits on AI products reporting each reading and change; today the person or their own tools write the entries.
It carries a machine that shows its working: record — kept, fingerprinted; read — a reading, flagged if unaccounted; correct — a change or a removal; history — every entry, every memory's state, the chain; match — MATCH, or what changed — 8 checks in its selftest, every command on the record. It will never keep a memory's words in the ledger; never take an email or a phone number as who; never let an entry change without the chain saying.
Six laws, written into the card.
They are in the card itself, so the AI follows them.
A LEDGER, NOT A STOREIt keeps fingerprints and a few words of label or reason, never a memory's words.
WHO AND WHEN, EVERY TIMEEach entry names the person, or an AI or an app by role or id, and the minute.
CORRECTIONS FROM THE TRUTHA correction names the words as they are now; stale words are refused.
UNACCOUNTED READINGS FLAGGEDA reading of a memory never recorded, or already removed, is flagged.
CHANGES SHOWmatch names a memory changed with no entry; the chain names an entry changed after it was written.
THE PERSON'S FILEOne plain file the person keeps, as privately as the memory itself.
What rides in the card.
In the card’s own voice, with a machine that shows its working.
THE GUIDEreferences/THE-MEMORY-LEDGER.md
THE MACHINEmemledger.py · five commandsrecord — kept, fingerprinted; read — a reading, flagged if unaccounted; correct — a change or a removal; history — every entry, every memory's state, the chain; match — MATCH, or what changed. Every command prints its working and refuses a bad input; 8 checks in its selftest, every command on the record.
What it does once your AI has it.
record Kept, fingerprinted
read A reading, flagged if unaccounted
correct A change or a removal
history Every entry, every memory's state, the chain
match MATCH, or what changed
On the record Two memories recorded by fingerprint (one by the person, one by the assistant), one read to plan the week, and the wrong race corrected by the person; a correction from the old, stale words is refused, and a reading of a memory never recorded is flagged. match says MATCH for the corrected words and CHANGED WITHOUT AN ENTRY for a memory edited off the record; one memory is removed, and history shows 6 entries, 1 flag and a chain that holds.
What it will never do.
It will never keep a memory's words in the ledger; never take an email or a phone number as who; never let an entry change without the chain saying.
It waits on AI products reporting each reading and change of a memory; until then the person or their own tools write the entries, and a reading nobody wrote down is not seen. A fingerprint of a short line can be matched by someone who guesses its exact words, so keep the ledger as privately as the memory. It is not a memory store and never changes the memory itself. It is an AI reading a text file: it can be wrong, so check what matters against your own records and the source.
What’s in the buy.
CARD.md — the whole card: who it is, its laws, when it says no, what it carries · SKILL.md — the door your AI reads first · START-HERE.md — the first five minutes, for you
THE-MEMORY-LEDGER.md — the guide in references/, in the card's own voice
scripts/memledger.py — the machine: record · read · correct · history · match, standard library only, selftest 8/8
WITNESS.md + SELFTEST.md — every command on the record, as it printed · MANIFEST.md, every file hashed · AUDIT.md, the twelve checks
MY-LEDGER.md — the card's memory, on your own machine · TIN.md · LICENSE-NOTE.md · THE-CLAUSES.md · HOSTS.md
card.svg + card-machine.svg + card.json · card.html, the card as one offline file · the doors for ChatGPT, Gemini, Cursor, Claude Code and MCP hosts (rules/, system/, mcp/)
PROOF · SELFTEST 8/8 · 5 COMMANDS ON THE RECORD · WITNESSED IN CLAUDE 2026-10-11 · EDITION 1 · PUNCH 15143524D983ED27550435B4
ON EVERY DOOR · A CARD FOR YOUR AI, A FILE FOR YOUR COMPUTER
In Claude: turn on code execution under Settings › Capabilities, then Customize › Skills › + › Create skill, and upload the zip as it is — START-HERE.md in the box walks you through it, and tells you how to keep the ledger. In ChatGPT, Gemini and the rest: a Project, a GPT or a Gem with the card’s files attached and the short door in the box pasted as its instructions. The words run anywhere an AI reads Markdown; the machines run wherever the host runs Python. Witnessed in Claude only. The host marks →
Take it.
Nº 1175 PROPOSED — LAUNCHING SOON
Sold as is under the term printed. A card instructs an AI you operate; results depend on your model, your files and your judgement. Not medical, legal, tax or financial advice, never the person’s boss, and not a licence to practise. The terms →
One payment. The file is yours to keep and keeps working at its edition; new editions issued in the year after you buy reach you by email as replacement files. Tax is added at checkout where it applies. Nothing auto-renews.
A TERM, NOT A SUBSCRIPTION: NOTHING RENEWS ITSELF AND NOBODY IS CHARGED AGAIN. WHEN A TERM ENDS THE FILES STAY ON YOUR COMPUTER AND STAY READABLE — FREEZE, NOT LOSS.
THE MACHINE · IN THE OPEN · FROM THE WITNESSED RUN OF 2026-10-11
memledger.py, every command showing its working.
A small Python program, standard library only. Your AI runs it; you can too. Every block below is pasted from the card’s own WITNESS.md, as printed.
record
kept, fingerprinted
read
a reading, flagged if unaccounted
correct
a change or a removal
history
every entry, every memory's state, the chain
match
MATCH, or what changed
selftest
8 checks that prove the machine; it must print 8/8
record · KEPT, FINGERPRINTED
$ python3 scripts/memledger.py record me.jsonl --item m-001 --text Prefers the number first, then the reasons. --by person --label how answers should start --at 2026-10-01T09:00
entry 1 · RECORDED m-001 · fingerprint e8c1ccfc8ddc · by person · 2026-10-01T09:00
the ledger keeps the fingerprint and the label, never the words
record · KEPT, FINGERPRINTED
$ python3 scripts/memledger.py record me.jsonl --item m-002 --text Training for a spring marathon. --by ai:assistant --label training goal --at 2026-10-02T18:30
entry 2 · RECORDED m-002 · fingerprint e90e9fb070b7 · by ai:assistant · 2026-10-02T18:30
the ledger keeps the fingerprint and the label, never the words
read · A READING, FLAGGED IF UNACCOUNTED
$ python3 scripts/memledger.py read me.jsonl --item m-002 --by ai:assistant --purpose plan the week's runs --at 2026-10-05T07:10
entry 3 · READ m-002 · by ai:assistant · 2026-10-05T07:10
correct · A CHANGE OR A REMOVAL
$ python3 scripts/memledger.py correct me.jsonl --item m-002 --old Training for a spring marathon. --new Training for an autumn half marathon. --by person --reason the AI had the race wrong --at 2026-10-06T20:00
entry 4 · CORRECTED m-002 · e90e9fb070b7 → 84bc5b7d1d41 · by person · 2026-10-06T20:00 · the AI had the race wrong
change the memory itself where it lives; match then proves it was changed
correct · A CHANGE OR A REMOVAL
$ python3 scripts/memledger.py correct me.jsonl --item m-002 --old Training for a spring marathon. --new Training for a winter ultra. --by ai:assistant --reason tidy --at 2026-10-06T21:00
refused: the old text does not match m-002 as the ledger last knew it · read the memory as it is now, then correct it
read · A READING, FLAGGED IF UNACCOUNTED
$ python3 scripts/memledger.py read me.jsonl --item m-009 --by app:calendar --at 2026-10-07T08:00
entry 5 · READ m-009 · by app:calendar · 2026-10-07T08:00 · FLAG: read, but never recorded
match · MATCH, OR WHAT CHANGED
$ python3 scripts/memledger.py match me.jsonl --item m-002 --text Training for an autumn half marathon.
MATCH · the memory reads as the ledger last recorded it
match · MATCH, OR WHAT CHANGED
$ python3 scripts/memledger.py match me.jsonl --item m-001 --text Prefers the number first.
CHANGED WITHOUT AN ENTRY · the memory no longer reads as recorded: it was changed with no entry in the ledger
correct · A CHANGE OR A REMOVAL
$ python3 scripts/memledger.py correct me.jsonl --item m-001 --old Prefers the number first, then the reasons. --remove --by person --reason no longer true --at 2026-10-08T12:00
entry 6 · REMOVED m-001 · by person · 2026-10-08T12:00 · no longer true
remove the memory itself where it lives; if match still finds its words there, the removal did not happen
history · EVERY ENTRY, EVERY MEMORY'S STATE, THE CHAIN
$ python3 scripts/memledger.py history me.jsonl
me.jsonl · 6 entries
1 2026-10-01T09:00 RECORDED m-001 by person · fingerprint e8c1ccfc8ddc · "how answers should start"
2 2026-10-02T18:30 RECORDED m-002 by ai:assistant · fingerprint e90e9fb070b7 · "training goal"
3 2026-10-05T07:10 READ m-002 by ai:assistant · for: plan the week's runs
4 2026-10-06T20:00 CORRECTED m-002 by person · e90e9fb0 → 84bc5b7d · the AI had the race wrong
5 2026-10-07T08:00 READ m-009 by app:calendar · FLAG: read, but never recorded
6 2026-10-08T12:00 REMOVED m-001 by person · no longer true
m-001 removed · read 0 times · corrected 0 times
m-002 kept · fingerprint 84bc5b7d1d41 · read 1 time · corrected 1 time
m-009 never recorded · read 1 time · corrected 0 times
flags: 1 — readings the ledger cannot account for
chain: holds over 6 entries
THE NUMBERS, NAMES AND DATES IN THESE RUNS ARE THE STUDIO’S OWN EXAMPLES, INVENTED FOR THE RECORD; NO REAL COMPANY, PERSON OR PROPERTY IS NAMED.
QUESTIONS AT THE TABLE
Asked before the wire.
What does it need from me?
Record · a memory kept, its fingerprint. It asks first for each memory's id and its words as kept (to fingerprint, not to store), who recorded, read or corrected it, and why.
Does it send anything anywhere?
No. The machine is a standard-library Python program that runs on your own computer and sends nothing anywhere; the words run wherever an AI reads Markdown. No server, no account, no key.
What is on the record?
The self-test (8/8) and every command run on real example inputs, pasted into WITNESS.md as they printed; the punch on the face is the SHA-256 of SKILL.md, so a downloaded copy can be checked against this room.
Can it be wrong?
Yes — it is an AI reading a text file. It waits on AI products reporting each reading and change of a memory; until then the person or their own tools write the entries, and a reading nobody wrote down is not seen. A fingerprint of a short line can be matched by someone who guesses its exact words, so keep the ledger as privately as the memory. It is not a memory store and never changes the memory itself.
What will it never do?
It will never keep a memory's words in the ledger; never take an email or a phone number as who; never let an entry change without the chain saying.
