OpenTechnical

OT-2026-000073503

Publication integrity record

Foam pad vacuum gripper, three zone face, six outlet manifold, 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-2026-000073503) never changes.

Identity and time

Publication numberOT-2026-000073503 · never reused
Internal UUID01a0ae92-efb9-7d5a-9068-5055d8d73b23 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:20.363042Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000073503
StatusPUBLIC

Content hashes

Canonical textead33b8aca7afdaa34ebb4a1a6594cd3c41bf217e531a8eeda2b0872abb1d847
Markdown75450975a283de63e6bd566184b85f2116dfc19968e56443ba0aa028a7dad4e8
PDF
Publication page45518743bfb24d9ba18afb4d4d82e42e2ec1ffefba65e077178c0f7c928a3340
Manifest69ec024806de3a7a1f510e50cacb41e9b1d8c7e106ee3a461146c1c5c46bdc25

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
Signaturev6cU/ysnh8PLnrYS1nq4+zKxeKq3uEGPygKywwHm7qAWpro2qyhYk8BZGM90afJeGxI1+2pXdeonWW06UazrCw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T10:21:40.378778ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073503
observed 45518743bfb24d9ba18afb4d4d82e42e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:40.361319ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073503/manifest.json
observed 69ec024806de3a7a1f510e50cacb41e9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:40.343317ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073503/publication.md
observed 75450975a283de63e6bd566184b85f21...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:40.324660ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073503/publication.txt
observed ead33b8aca7afdaa34ebb4a1a6594cd3...
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.