OpenTechnical

OT-2026-000081174

Publication integrity record

Single bellows cup vacuum gripper, two stage ejector, 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-2026-000081174) never changes.

Identity and time

Publication numberOT-2026-000081174 · never reused
Internal UUID01a0ae96-f373-729b-b599-8ec03b5e2a78 · 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-2026-000081174
StatusPUBLIC

Content hashes

Canonical text1e17dec1517239f9cae2cd5c83f7c0f4c5dcbe9e2f2842d7c60418c2e028297a
Markdownf0056b5241f9306964e136d869b5b144dc5368329b6cd0c65fa1ce487b6ff419
PDF
Publication page69e79237bc6737342ffda1aa6f94353415bb39ab0dadbfbca2da53f749bfba90
Manifestd4d4945015e8b66158105a68a57b6407e76ada0aec8bd0c9b3cbea4ea2412291

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
Signature6vBU3TMs8A3RVEWT38VP/Zuoy9mIA6RH55zkjkRgG+T96JiZAANwJZEFgbddf7Zz6w5dFubUcjGeedOk//yIBA==
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

2026-09-17T10:01:08.964136ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081174
observed 69e79237bc6737342ffda1aa6f943534...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:08.946905ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081174/manifest.json
observed d4d4945015e8b66158105a68a57b6407...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:08.930319ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081174/publication.md
observed f0056b5241f9306964e136d869b5b144...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:08.912458ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081174/publication.txt
observed 1e17dec1517239f9cae2cd5c83f7c0f4...
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.