OpenTechnical

OT-2026-000002549

Publication integrity record

Method and device for item checkout in unmanned store

This page is the evidence record. It changes as evidence arrives: a trusted timestamp, an independent retrieval, a custody deposit. The disclosure itself (/p/OT-2026-000002549) never changes.

Identity and time

Publication numberOT-2026-000002549 · never reused
Internal UUID01a0a67d-569c-7b6f-a4ea-f37edcbea6af · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:13:47.165114Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000002549
StatusPUBLIC

Content hashes

Canonical textf265461917d42df1a54a3b11f7a8065f9ce650b0178ff81f8927595534ab3d56
Markdown0da5d32499ebe743e4954ff44f3eb99578c63fcda07daec3b33cf6f0e6ca28f1
PDF
Publication page0aae2c7cbc0858e80dbfbef2b597800a29aaa338ca94fdda08c4c51b108b1748
Manifest56a61feb6f98e8ad0a9b7f09f2e04fea96b70b4b0e626504b31ad72aa3d2245c

SHA-256, lowercase hex, over the exact bytes of each published file. Every figure is hashed individually in the manifest.

Manifest signature

AlgorithmEd25519 · key OT-SIGN-2026-01 · Verified
Signature4x1zEPtHrATiVlTC/G8l69jrNSatBP0oC868qe1CeQdifQ231ASdVr1xjif1i/Gh18jfDYiLmy4nTpMyiHVuBQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-15T19:27:02Z
batch OT-TS-2026-W38-002 · RFC 3161 token · inclusion proof
root 2d7e364e718bd6a32072ec57f9edc195...

Independent retrieval

2026-09-15T19:30:34.338328ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002549
observed 0aae2c7cbc0858e80dbfbef2b597800a...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:30:34.156778ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002549/manifest.json
observed 56a61feb6f98e8ad0a9b7f09f2e04fea...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:30:34.132637ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002549/publication.txt
observed f265461917d42df1a54a3b11f7a8065f...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139

Requested from infrastructure separate from the publication system, over the public internet, with no credential. A MATCH means an ordinary internet client could fetch the publication and received exactly the bytes recorded above.

Independent archive

External archivePending Canonical URLs are submitted to an independent archive in batches.

A capture held by an outside archive is evidence that does not depend on OpenTechnical continuing to exist. It supplements the records above; it does not replace them.

Third-party custody

OT-CUSTODY-2026-W38OpenTechnical-Custody-2026-W38.tar.zst
f2fc69d02142424a578267e5e3a6d3bb... · 402,218,449 bytes · held by held on site pending an external custodian · retention permanent