OpenTechnical

OT-2026-000089457

Publication integrity record

Two cup vacuum gripper, two zone face, three outlet manifold, three stage ejector, 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-2026-000089457) never changes.

Identity and time

Publication numberOT-2026-000089457 · never reused
Internal UUID01a0ae9b-db02-7563-83d8-344ff21e2644 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:04.880043Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000089457
StatusPUBLIC

Content hashes

Canonical text5726d69689c8a1c78e9f0bbd7d21878030428a77e1ed5df6fecc9869cf1fd2c5
Markdowna749e87801681a88f8b3fb4a4d19b0e02c293438782420da7519faafe323e2b1
PDF
Publication page0b84f757d119c8056ee45c20fe32a4249363f9870d6b1e8a3bba112f02fc5cdc
Manifest7c123fb293330159faf87deccc5989d8d14b6ef1011743856c1c28be1569f39b

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
Signaturej4WhIdDRWK3u1gl+NEtO9NiENBr6KHTO/cyj3l0vmzjHrVnVl8n7uwv1yVFDsH7+KSmye1pJ2wWhZNg+gltkCw==
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

2026-09-17T09:47:36.333466ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089457
observed 0b84f757d119c8056ee45c20fe32a424...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:47:36.316328ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089457/manifest.json
observed 7c123fb293330159faf87deccc5989d8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:47:36.297208ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089457/publication.md
observed a749e87801681a88f8b3fb4a4d19b0e0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:47:36.281147ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089457/publication.txt
observed 5726d69689c8a1c78e9f0bbd7d218780...
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.