OpenTechnical

OT-2026-000003163

Publication integrity record

Hybrid lay-up tool

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-2026-000003163) never changes.

Identity and time

Publication numberOT-2026-000003163 · never reused
Internal UUID01a0a697-1cb5-7e98-b1f8-7634bd968f4d · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:41:56.277519Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000003163
StatusPUBLIC

Content hashes

Canonical text7acc2d37cab7b7496b6fb30dd4eeb0156472028568c292979c202ff4c117278a
Markdown086af65c85a807ee1520192581c0be90c3a6b5cbd523196394379c59150f48f0
PDF
Publication pagee090e593408d82067e01cf2a9ede37c47562db364229cb09f7f128f3c6d1bfa6
Manifest4646e6cff9bcae4b496e44d5438d24fbabd4d1fb39c0797c7376262aa2ae5900

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
SignatureJWAjxvDn4VV1lETv0v3vxbGqd/6hMZvqtn8Ufql2uOB5BkT/SNObq4DG1H19mf+jQzMBgsfa9G4eXECwJa65Aw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-15T19:47:02Z
batch OT-TS-2026-W38-003 · RFC 3161 token · inclusion proof
root 713cd89b73be422b38f7894d4fb6a755...

Independent retrieval

2026-09-17T04:42:07.296099ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003163
observed e090e593408d82067e01cf2a9ede37c4...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-17T04:42:07.122501ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003163/manifest.json
observed 4646e6cff9bcae4b496e44d5438d24fb...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-17T04:42:06.934160ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003163/publication.md
observed 086af65c85a807ee1520192581c0be90...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-17T04:42:06.742728ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003163/publication.txt
observed 7acc2d37cab7b7496b6fb30dd4eeb015...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T04:23:07.671305ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003163
observed e090e593408d82067e01cf2a9ede37c4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T04:23:07.656449ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003163/manifest.json
observed 4646e6cff9bcae4b496e44d5438d24fb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T04:23:07.641586ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003163/publication.md
observed 086af65c85a807ee1520192581c0be90...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T04:23:07.597196ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003163/publication.txt
observed 7acc2d37cab7b7496b6fb30dd4eeb015...
fetched by instance-3.rotem.ai from 34.69.0.72, 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