OpenTechnical

OT-2026-000089734

Publication integrity record

Three bellows cup vacuum gripper, three zone face, four outlet manifold, pump fed, manifold 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-2026-000089734) never changes.

Identity and time

Publication numberOT-2026-000089734 · never reused
Internal UUID01a0ae9c-1a22-7b68-bc6d-4511b6b4db76 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:21.039513Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000089734
StatusPUBLIC

Content hashes

Canonical texte3b5d2350517959b19aa5b7d8bef9e4c2df50cae361955976657ea9c78c60dd0
Markdown67cbdeaeb2a36b91c8fb5761f9923e2f64f07425449c9ca62e1d80e7ce6c9aba
PDF
Publication page2f03fe76771c2618dd982eedad446bc897db9af4d4f277182e112d70b32d21dd
Manifest50c34cfae106188d7c947f3399034f1581dbadd7ab91d1a78d46b65dbca2de08

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
Signatureno6+b6Zryd4m+pe3SyyB/WfloS/kxnvXqvjB0mh7BxPeT9pphCOCKWBw4hufasnMrpRgptdMRzrM+672d6hCBA==
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

2026-09-17T09:46:44.512388ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089734
observed 2f03fe76771c2618dd982eedad446bc8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:44.495621ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089734/manifest.json
observed 50c34cfae106188d7c947f3399034f15...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:44.477565ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089734/publication.md
observed 67cbdeaeb2a36b91c8fb5761f9923e2f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:44.460760ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089734/publication.txt
observed e3b5d2350517959b19aa5b7d8bef9e4c...
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.