OpenTechnical

OT-2026-000020279

Publication integrity record

Foam pad vacuum gripper, four zone face, pump fed, pulsed blow-off before set-down, on a tool changer

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-2026-000020279) never changes.

Identity and time

Publication numberOT-2026-000020279 · never reused
Internal UUID01a0ae6f-437a-75f9-b191-090902e4f8ab · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:22.507199Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000020279
StatusPUBLIC

Content hashes

Canonical text5d488fc812c780305e028da15285e9ae82b2d9eb4f0b39385965f2ebe86b4224
Markdown29aecc49495f34675baede23a51ca5dde43f29cdee78c009f071b6413b0df7be
PDF
Publication pagefeecbcf714a1d855651c6f616ddfb8c126fdfc9e2c9477e6f5da3968a33db86d
Manifeste94039b7293e2582711d03efaa33d2b17d1e9c6497faf0a846b64cdc2f3cfe30

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
Signaturex+xySkcXv/mY1F0jvYKdvL0W2wyjJUTVdnKXBxyGbOlP8rjd5ND7bdKHKZYKSYgSRzh71TSMJ3ms8B/1E6eqBg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:56:37.874498ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020279
observed feecbcf714a1d855651c6f616ddfb8c1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:56:37.854705ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020279/manifest.json
observed e94039b7293e2582711d03efaa33d2b1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:56:37.836934ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020279/publication.md
observed 29aecc49495f34675baede23a51ca5dd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:56:37.819626ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020279/publication.txt
observed 5d488fc812c780305e028da15285e9ae...
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

Custody packagePending Custody packages are produced weekly.