OpenTechnical

OT-2026-000081406

Publication integrity record

Two bellows cup vacuum gripper, two outlet manifold, pump fed, supply line pressure sensor, vented after 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-2026-000081406) never changes.

Identity and time

Publication numberOT-2026-000081406 · never reused
Internal UUID01a0ae96-f375-72ff-9e9e-e61f43bd903e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:43.461344Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081406
StatusPUBLIC

Content hashes

Canonical text9a468c4703db01b5267aaf341bf571037094f78d3f67a869bffa2e8175e28a7f
Markdownb31a25e41c19be664a9175bc374a8d7356ec1bff95828e56d4a49edb52e8b4b4
PDF
Publication page09f3d21a9f28e1b9a09d6004b28d28fc83e3f720a7bdd259818b7615cd9d6026
Manifestb549ca26f8c2818e47b05b377a041e94831cf66015e59a020805642b5b26688a

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
Signature8kuRHmMepQVHaXVM2HADDnEqSm2Cn53mhLyiTU1ncK7ulWO4QiRE1B6fbN/0BW1VzFimsRd39Li0lrsgojtYDA==
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

2026-09-17T10:01:33.239109ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081406
observed 09f3d21a9f28e1b9a09d6004b28d28fc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:33.220513ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081406/manifest.json
observed b549ca26f8c2818e47b05b377a041e94...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:33.202667ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081406/publication.md
observed b31a25e41c19be664a9175bc374a8d73...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:33.184973ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081406/publication.txt
observed 9a468c4703db01b5267aaf341bf57103...
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.