OpenTechnical

OT-2026-000091715

Publication integrity record

Four cup vacuum gripper, four zone face, four outlet manifold, plant vacuum fed, pressure sensor per zone, 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-2026-000091715) never changes.

Identity and time

Publication numberOT-2026-000091715 · never reused
Internal UUID01a0ae9d-43b9-78cd-90cd-3acdc8f41fac · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:37.256105Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000091715
StatusPUBLIC

Content hashes

Canonical text4e8d975e6468f5e0a75644ed4239e0f9997fd04308470b6e2d5b26a9e2c196cc
Markdown4eba823b06f280f6f5d7c2329bd18e94d0ec821735a8d97ebfdb43f4ea8068bd
PDF
Publication pageb249c3ed6ff1a75071ff293dc088a5f5000e45999823341f5bb51247c16ef385
Manifest8d0f262670cd6a71d17687a9e20253518fc90e4f85a3ebc32c7591685443fbec

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
SignatureBT0uDRzOK68T1DDtTthExeT6fulUtyiJ7C3uzWASknMEu4FMTQ4f5z5ZiaFscpdAb6rKmwWSsdqcQY/oKURJDA==
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

2026-09-17T09:41:56.097588ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091715
observed b249c3ed6ff1a75071ff293dc088a5f5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:41:56.080439ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091715/manifest.json
observed 8d0f262670cd6a71d17687a9e2025351...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:41:56.063274ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091715/publication.md
observed 4eba823b06f280f6f5d7c2329bd18e94...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:41:56.044530ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091715/publication.txt
observed 4e8d975e6468f5e0a75644ed4239e0f9...
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.