OpenTechnical

OT-2026-000027077

Publication integrity record

Single cup vacuum gripper, common isolation valve, plant vacuum fed, supply line pressure sensor, 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-2026-000027077) never changes.

Identity and time

Publication numberOT-2026-000027077 · never reused
Internal UUID01a0ae72-3453-70ec-b809-15c9f78d5ade · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:18:35.358864Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000027077
StatusPUBLIC

Content hashes

Canonical textf1dc45ad6233248a16b5d2f8e1817b85f992dedb22aa6ce37abd4785e942cade
Markdowncd4c608970b53c04565dae63087f0fb062b884248a025f3241e3ae981b4b05d4
PDF
Publication pagea2385f6aade9cd30e96cda7d99b12e93a2ab4dc239272540bc8cf281216ae661
Manifest304cd60e6b701844b732fe754da6ecbeeae804bbafdcdf0ba1885a4b73834bb1

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
Signaturetf40BlW0nD5e3t+rrWCqmVvHShs9PTpK7otrKD49lOZHhYueNB41pwR2fK86/y8JH4q6IbR+qyE9bNW3z/5/Bg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:43:50.463132ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027077
observed a2385f6aade9cd30e96cda7d99b12e93...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:43:50.448667ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027077/manifest.json
observed 304cd60e6b701844b732fe754da6ecbe...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:43:50.431419ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027077/publication.md
observed cd4c608970b53c04565dae63087f0fb0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:43:50.415287ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027077/publication.txt
observed f1dc45ad6233248a16b5d2f8e1817b85...
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.