OpenTechnical

OT-2026-000003314

Publication integrity record

Vacuum clamping plate

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-2026-000003314) never changes.

Identity and time

Publication numberOT-2026-000003314 · never reused
Internal UUID01a0a6ae-d139-7331-9c66-92043d41ee36 · UUIDv7, RFC 9562
Publication timestamp2026-09-15T20:07:49.818142Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000003314
StatusPUBLIC

Content hashes

Canonical texte1c92cdcada3b65998676cf2648b21380278d9e9f31526bc937da1610a54bfe8
Markdownc4635b1976f94fe2c70e89544d42ad3c905b522a9e144f51ce3640f75234bc2b
PDF
Publication page2cd091a0e1398d79bc8d64c5afa0c1ab68de1fd50b691eb1654521d939273612
Manifest7755cf2bc9e43434c513ed93b49203e29771f8ed80da91179ef9763c01add8c4

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
SignatureSk+uMpDnXEc4TJuxlH1sCvz3NmM6owcjQqOKAD0r6kfwFLbtKXTLgxS6FkjiSRGs8dG11UUuTqzq2fsX2XeMBw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-15T20:27:02Z
batch OT-TS-2026-W38-005 · RFC 3161 token · inclusion proof
root 0d980c01ea01b2d7f69845e24a85320c...

Independent retrieval

2026-09-19T16:43:35.206370ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003314
observed 2cd091a0e1398d79bc8d64c5afa0c1ab...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-19T16:43:35.034925ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003314/manifest.json
observed 7755cf2bc9e43434c513ed93b49203e2...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-19T16:43:34.848091ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003314/publication.md
observed c4635b1976f94fe2c70e89544d42ad3c...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-19T16:43:34.609240ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003314/publication.txt
observed e1c92cdcada3b65998676cf2648b2138...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-15T20:10:04.281968ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003314
observed 2cd091a0e1398d79bc8d64c5afa0c1ab...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:10:04.252429ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003314/manifest.json
observed 7755cf2bc9e43434c513ed93b49203e2...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:10:04.240698ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003314/publication.txt
observed e1c92cdcada3b65998676cf2648b2138...
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