OpenTechnical

OT-2026-000023648

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, pump fed, supply line pressure sensor, 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-2026-000023648) never changes.

Identity and time

Publication numberOT-2026-000023648 · never reused
Internal UUID01a0ae70-aed3-763b-bfac-11e7a837c7d8 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:16:55.528856Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000023648
StatusPUBLIC

Content hashes

Canonical text019c99bff63a9ee108c0b89e9bac6c9deb0506c3271821ee1473439ba88eb210
Markdown16f3779a1044cdd254de56f79bb9dcaba2f88238630ee59a8cf4d6b3980c629b
PDF
Publication page3cb23e9cbe98424bfb26ed1988d1a3c108937d027ad36d16f01eb891062f3e83
Manifest0876873a3b115724a559c6f1c73c4340605c06539cb12aa166a067ff9e5aa123

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
SignaturezbDri/TUKXp4JJw5+ABteCGdeB0YFyzUgfUbOhJaHM5nfp4D+7Z8Tjbfwa6c9OZirlBL8YQFpKQ24gMOkMx4BA==
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

2026-09-17T11:49:57.604098ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000023648
observed 3cb23e9cbe98424bfb26ed1988d1a3c1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:49:57.587910ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000023648/manifest.json
observed 0876873a3b115724a559c6f1c73c4340...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:49:57.570669ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000023648/publication.md
observed 16f3779a1044cdd254de56f79bb9dcab...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:49:57.554124ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000023648/publication.txt
observed 019c99bff63a9ee108c0b89e9bac6c9d...
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.