OpenTechnical

OT-2026-000074271

Publication integrity record

Three bellows cup vacuum gripper, three zone face, three outlet manifold, plant vacuum fed, manifold 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-2026-000074271) never changes.

Identity and time

Publication numberOT-2026-000074271 · never reused
Internal UUID01a0ae93-7178-737e-94ed-a86573a0ac07 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:53.574555Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000074271
StatusPUBLIC

Content hashes

Canonical text62cde9c809f62608e3c4e53452e5f72efeac356ac8d83b2e091d85bad22d54aa
Markdown9bb3fb672da03fcc16cb7c66358d689c848988c0343fb2141cfbf83a52e9cb58
PDF
Publication page6dc0d90512143edefc14fcf816f1a324d9d61ce6597260b156258df990b83191
Manifest47c48015fc7b4cf5ef4e6247fe6cdbec042d21f5b709e6260efd8dba31a0f06c

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
SignatureXmuHc1LhHxVEw5J1bMvrZTsThhhKTbDTCEh8E2oCTZSX+TzMT9sZCOx3otedqopbOKL3CbClqDq48stNYcRQCg==
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

2026-09-17T10:19:10.613446ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074271
observed 6dc0d90512143edefc14fcf816f1a324...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:10.593433ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074271/manifest.json
observed 47c48015fc7b4cf5ef4e6247fe6cdbec...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:10.575314ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074271/publication.md
observed 9bb3fb672da03fcc16cb7c66358d689c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:10.555446ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074271/publication.txt
observed 62cde9c809f62608e3c4e53452e5f72e...
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.