OpenTechnical

OT-2026-000022501

Publication integrity record

Single cup vacuum gripper, two stage ejector, sustained 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-2026-000022501) never changes.

Identity and time

Publication numberOT-2026-000022501 · never reused
Internal UUID01a0ae6f-f4fe-7f20-9ada-de4c6204037d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:16:07.953226Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000022501
StatusPUBLIC

Content hashes

Canonical text1575b35d5999962b6f575911099318da4d01ecb1f529d30b62c6b2a8c1006e4c
Markdown3dde14ce7f5afc5740885ef4378fa58fd4d462d51613d9aacd5b84cb71cd968a
PDF
Publication pagea4c85209b20f84a44ff096124d8892054a84b347cfd5a00cd164d9f0acce49d9
Manifest010f14c6efe5d810810a1bd6a2f65eb9a395d2ceba6c00f7699dd48ee17afb0c

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
SignatureNENUt8OTVklSfD5rgDS19CQXVHcee7xbNW75FS28W0hZQ5Hi4exfxwZoy6RpLJ/Bvr7hAwrpzWOAMptda9xABw==
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

2026-09-17T11:53:55.656367ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022501
observed a4c85209b20f84a44ff096124d889205...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:53:55.640261ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022501/manifest.json
observed 010f14c6efe5d810810a1bd6a2f65eb9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:53:55.622447ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022501/publication.md
observed 3dde14ce7f5afc5740885ef4378fa58f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:53:55.603624ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022501/publication.txt
observed 1575b35d5999962b6f575911099318da...
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.