OpenTechnical

OT-2026-000000819

Publication integrity record

Work-holding and molding device for variable irregular shapes

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-2026-000000819) never changes.

Identity and time

Publication numberOT-2026-000000819 · never reused
Internal UUID01a0a673-dee3-7ac4-868f-c824ed97f3fe · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:03:26.692471Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000000819
StatusPUBLIC

Content hashes

Canonical text9651c9a2f654588077baee2c8fe380276ea51564471a6a01396051f2cb71abe9
Markdown9daf7182c4f1b91d02c6b4aa6dbf50c9e69f536282ffb1696cec2aacc8efe4d7
PDF
Publication pagef74eb1efeff517ae0a3da37eae124c63423db5fcf1eb9e2fe0f4d7fe3771af28
Manifest507b4b882a0dd11895ba6f14342b659946ed470d369cd7d97e676e555dd030bc

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
Signaturez/q9g+xg0uUxwsN4CbSug9Kl5wcr3YrKXEfT4MUSghQijcLu1aCcRXUl+zjo8QZEy/GW9LFg+0UWZsXtgoAKAA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-15T19:07:03Z
batch OT-TS-2026-W38-001 · RFC 3161 token · inclusion proof
root 6369baadb1a246009d149835804d20ba...

Independent retrieval

2026-09-17T04:41:38.023869ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000819
observed f74eb1efeff517ae0a3da37eae124c63...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-17T04:41:37.668386ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000819/manifest.json
observed 507b4b882a0dd11895ba6f14342b6599...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-17T04:41:37.143595ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000819/publication.md
observed 9daf7182c4f1b91d02c6b4aa6dbf50c9...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-17T04:41:36.990911ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000819/publication.txt
observed 9651c9a2f654588077baee2c8fe38027...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-15T20:30:31.637806ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000819
observed f74eb1efeff517ae0a3da37eae124c63...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:30:31.607272ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000819/manifest.json
observed 507b4b882a0dd11895ba6f14342b6599...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:30:31.438602ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000819/publication.txt
observed 9651c9a2f654588077baee2c8fe38027...
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