AppendOnlyby 5R Industries

●  A record system for AI agents

The models change.
The record doesn't.

A record of what an AI agent actually did, kept where the agent cannot edit it.

Evidence before language.  ·  AppendOnly by 5R Industries

Read the reportWrite to Adrian

Our whole record since its first commit, built again in time. At its growing end, Node 2, the seat: the working machine where the operator and the agent work, sending each commit onto the chain. Above and below, Node 1 holds the replica and Node 3 the observer, which grades each commit and takes the agent's commits over a restricted channel. Five times, the record reaches into the past, drawn by year. Geometry, times, classes and counts only: no hashes, no messages, no names.

our own record in time · drag to turn · click, then scroll to move in

0001 · MEASURED ON OURSELVES · 17 SEPTEMBER 2026

We have run our own company on it since March 2026.

~$15a day at list price: $829.12 over 55 days of one AI chief of staff
98%of context served from cache
$1.98per commit to the record
$1.04for a fresh instance to orient from the record alone
557verifications, roughly half of them claimed
43incidents, each with a date, a class, and the measure that followedWhat it caught →

Real, dated, and reproducible from files in the record. The pilot is the measurement.

0002how it works

A flight recorder, a fact-checker, and a notary.

01 · recorder

Written as it happens

Every tool call is written down by a hook that runs beside the agent, at the moment the call returns. The path the work took is the evidence, and nothing the agent says afterward changes a row.

02 · checker

Every claim, checked

Every claim the agent makes about its work is checked against that record by a model the agent's vendor does not control.

03 · notary

Signed and stamped

Every entry carries the fingerprint of the one before it and every commit since 9 September 2026 is signed. A change to the past shows at the next check: on our system every minute at the observer and every morning at the public stamp.

0003the record

Half of what an agent says about its work is a claim. The record labels which half.

Not the agent's summary. The rows the system wrote while the agent worked.

Row 0419: the agent said "complete and verified." The record held three of four tests. The label followed the evidence.

seqtimeactorverbtargetevidencelevel
041214:02:11agent-2READ_FILErequirement.mdsha256 3f9c…a1evidenced
041314:02:19agent-2SEARCHEDrecords/ (14 files)query hash 91e0…44evidenced
041414:02:40agent-2WROTE_FILEworkflow.yamlsha256 8b21…0e · 2,118 Bevidenced
041514:02:41agent-2COMMITTEDworkflow.yamlcommit 9f3f912 · signedverified
041614:03:05agent-2RAN_TESTacceptance 1 of 4exit 0 · 0.8 sevidenced
041714:03:09agent-2RAN_TESTacceptance 2 of 4exit 0 · 1.1 sevidenced
041814:03:14agent-2RAN_TESTacceptance 3 of 4exit 0 · 0.9 sevidenced
041914:03:15agent-2CLAIMED"complete and verified"3 of 4 tests in recorddowngraded
042014:03:16verifierVERIFIEDrows 0412–0419second model · agreesverified
042114:03:16observerFLAGGEDrow 0419test 4 absentopen
042214:03:20systemHANDOFFagent-2 → agent-3state = rows 0001–0421verified
042314:04:02agent-3READ_FILE_orient.mdsha256 66d1…9aevidenced
042414:04:31agent-3RAN_TESTacceptance 4 of 4exit 0 · 1.4 sevidenced
042514:04:33observerCLOSEDflag on row 04194 of 4 tests in recordverified
042614:05:00witnessANCHOREDday headstamp · externalverified
0427—next rowopen
Illustrative rows in the shape the system produces.
0004custody

It runs on your own machines. The record outlives your vendor.

On your own machinesThe record, the verifier and the checks run on your own hardware; what leaves is what your agent already sends to the model vendor you chose, a fingerprint to the timestamp service, and the operator's own pager messages. The record lives where the data lives: three small computers.
You hold the anchorCustody stays home. Compute is rented where the customer allows.
Work survives handoffsA replacement instance picks up from the record in minutes, because the record is the memory. A different model or vendor is what the design is for, and is not yet measured.
Every read is a rowThe record is of agents and evidence. Every person sees every row about themselves, and every read of those rows is itself a row.
0005the pilot

A pilot with a number at the end.

Eight weeks, one workflow, the customer's own machines. For whoever has to answer for an agent's work.

Already regulated, already litigated, or already on the cost sheet

  • Federal contractors and systems integrators
  • Engineering, construction, and transportation agencies
  • Financial services
  • Pharmaceutical and healthcare documentation
  • Legal
  • Insurance
0006the report

The Record Does Not Change.

What a verifiable record of AI-agent work costs, what it saves, and how it works, measured on one company since March 2026.

Built by running a company on it: a small engineering company, run by one person with an AI chief of staff. Written on the record it describes: the agent that helped write it is the agent verified in it.

Read the report (PDF, 12 pages)

The evidence bundle that lets anyone check the record's history since 9 September was not rebuilt: bundle-2026-09-28.zip, with a one-command check inside. Part C, the case study of one afternoon run on the record, follows once the filing that covers what it adds is on the record.

First public release, 29 September 2026 (text version 2; version 1 of 25 September 2026 superseded; every change listed in the corrections table) · the full report, the system as deployed, follows once the filing that covers what it adds is on the record. The report, the corrections table and the evidence bundle are deposited at Zenodo: DOI 10.5281/zenodo.23042774.

Verify this document. Anyone can check that the file above is the one in our record and has not changed since. Its SHA-256 is 6e9dff04f581f872d7dcc5ce590b671dedb193d84a359e931ab5fce89065dd3e. That fingerprint is committed and signed in our record, and the record's head is stamped into a public timestamp service every morning. The stamp proofs, the public signing key, and a one-command check are published here in the evidence bundle. The check proves origin and integrity, that these bytes came from our record at that time; it does not vouch for what the document says.

0007 · CONNECT

The models change.
The record doesn't.

Adrian can be reached at [email protected].

Write to Adrian
Adrian Outlaw, Founder
Lieutenant Colonel, US Army (Ret.)
West Point, BS Mechanical Engineering
UVA Darden, MBA
George Washington University, MS Mechanical Engineering
Service-disabled veteran

5R Industries LLC, Virginia
Service-Disabled Veteran-Owned Small Business
CAGE 20P23 · UEI KC4EGEP2NTX4
Patent pending