OpenTechnical

OT-2026-000083157

Publication integrity record

Two bellows cup vacuum gripper, two zone face, pump fed, 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-2026-000083157) never changes.

Identity and time

Publication numberOT-2026-000083157 · never reused
Internal UUID01a0ae97-c962-745a-a952-3c2242e850a7 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:59:38.321156Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000083157
StatusPUBLIC

Content hashes

Canonical text6d5aef0b2db5559c116d4cf522773b0e327f11d502ceafc0c2f0ff11241476d7
Markdownf677b3e7ebd5ff6e79bf6a8b51c40ca7b25a6064e3caf6e81d528f7d5a55d347
PDF
Publication pagefe9e9a8fee5f73b091f6770ace9f30a0024257c5f763f8f12fb2fd944d331f66
Manifest72babb9165fa84a99c883092cafb057911e2143a7b44f1f37725bf37a8748adf

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
SignatureNbZSnHylbDCHed27cPMfu6kleFaidEHLRnEJQ5MRDkAPbK31oU5EUtGl6w3TCi/1EEu7hi/AxXqFm25eelDjCg==
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

2026-09-17T09:00:54.673706ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083157
observed fe9e9a8fee5f73b091f6770ace9f30a0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:00:54.654312ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083157/manifest.json
observed 72babb9165fa84a99c883092cafb0579...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:00:54.636060ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083157/publication.md
observed f677b3e7ebd5ff6e79bf6a8b51c40ca7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:00:54.616918ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083157/publication.txt
observed 6d5aef0b2db5559c116d4cf522773b0e...
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.