OpenTechnical

OT-2026-000031253

Publication integrity record

Four cup vacuum gripper, four outlet manifold, three stage ejector, pulsed blow-off after 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-2026-000031253) never changes.

Identity and time

Publication numberOT-2026-000031253 · never reused
Internal UUID01a0ae74-87ab-72fa-b2c9-fe46912a535f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:21:07.653052Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000031253
StatusPUBLIC

Content hashes

Canonical text277cbc2536527fb23f9c352cd4bf2e3302edcc2891f99dcde891a3b5026c4a52
Markdown7129e22666374f028c0cdc574b88cdd567605e7ef4e5eca6acc4c3792c7609bd
PDF
Publication page25365ed905e7a3014f3d33cc0835818c971f885ba3e4a6b3e26f35410987cd04
Manifest3b6790e0387995d57d922c0e63ef66b0b342d94309717f796df7c853eadfe3ec

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
SignatureTiTtQSHrLlTcwmRdjS9nk71TAShCtDXlNZvE52eaC6jX16Is9/TSFts/ml82IIM3WzoBqJcFE7YDfhWEzaPGCA==
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

2026-09-17T11:35:49.750686ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031253
observed 25365ed905e7a3014f3d33cc0835818c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:49.732182ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031253/manifest.json
observed 3b6790e0387995d57d922c0e63ef66b0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:49.715473ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031253/publication.md
observed 7129e22666374f028c0cdc574b88cdd5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:49.696883ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031253/publication.txt
observed 277cbc2536527fb23f9c352cd4bf2e33...
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.