OpenTechnical

OT-2026-000011677

Publication integrity record

Three finger pneumatic gripper

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-2026-000011677) never changes.

Identity and time

Publication numberOT-2026-000011677 · never reused
Internal UUID01a0ae6d-1940-70d3-9300-09845a2543c7 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:00.631271Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000011677
StatusPUBLIC

Content hashes

Canonical textb061ac6a6cf2c1eef7d898cdca8942c6e329e3d4bd3e66e109477aa6495088a6
Markdown6b8e112a3722fcf09c7ea28e9dc1073413f6ef5961a99051d52dad8b24684e24
PDF
Publication page33aa23188013daac47fa77427f1eeaae2cd4d848bd7ec67d0afb7261860e567a
Manifestf54950fa190d3d82076095e41e1b2df998822183ffdb335b6a71a47f2476c462

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
SignatureHY6ePC+Ws60QcRvqPNjIhuXEQn8/ippcnPve4pOzr+qGD095RsgjyzkpPSGbnenkOqDQKUUcJ5cbL8MwzIcZDw==
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

2026-09-17T12:12:16.418680ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000011677
observed 33aa23188013daac47fa77427f1eeaae...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:12:16.398916ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000011677/manifest.json
observed f54950fa190d3d82076095e41e1b2df9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:12:16.381282ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000011677/publication.md
observed 6b8e112a3722fcf09c7ea28e9dc10734...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:12:16.362467ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000011677/publication.txt
observed b061ac6a6cf2c1eef7d898cdca8942c6...
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.