OpenTechnical

OT-2026-000103873

Publication integrity record

Three bellows cup vacuum gripper, three zone face, per zone isolation, pump fed, 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-2026-000103873) never changes.

Identity and time

Publication numberOT-2026-000103873 · never reused
Internal UUID01a0aea5-15e7-7c3f-bdb8-ae8d941bd355 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:14:09.781581Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000103873
StatusPUBLIC

Content hashes

Canonical text455c5a85929ccd967b9115ec83809820c47e187800eff72e26c8870674b75c4a
Markdownc727f24f25b1a5046c680dab1908c78bd928d27ad5d2d4a3b2382f9abc0ef93e
PDF
Publication page31c5ac0859b0f2ef84ce9b37c2755af8a13465d3abe6584edb4cc4d2b2287618
Manifestc477affc578945f1b1181b6cb3a554f013de13ae9094d407b4864b57c48ccb63

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
SignatureD7914XGX30aCnZmyU/Zbr2NFMvAR4LRAbkhUW60H7V0hf3voexP9fJ2xGPjLadx+EIvLf4VQToWPR9s1E0vNBQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:27:04Z
batch OT-TS-2026-W38-023 · RFC 3161 token · inclusion proof
root 095d30148a2ef87d42d7818ebe7543f9...

Independent retrieval

2026-09-17T09:21:51.466132ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103873
observed 31c5ac0859b0f2ef84ce9b37c2755af8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:21:51.448010ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103873/manifest.json
observed c477affc578945f1b1181b6cb3a554f0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:21:51.430059ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103873/publication.md
observed c727f24f25b1a5046c680dab1908c78b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:21:51.411819ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103873/publication.txt
observed 455c5a85929ccd967b9115ec83809820...
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.