OpenTechnical

OT-2026-000081190

Publication integrity record

Single bellows cup vacuum gripper, three 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-2026-000081190) never changes.

Identity and time

Publication numberOT-2026-000081190 · never reused
Internal UUID01a0ae96-f373-7835-a2a0-7144f30c9ab5 · 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-2026-000081190
StatusPUBLIC

Content hashes

Canonical textdc8ec48b836dfb3c8ad4d411d146d604a9076c7e41c13b4fb418a22f8ef40f05
Markdownd53da218617e7b6eefebc3431d15a040eaca8d91e5babd65304473bd129bbd4d
PDF
Publication pagef819c70669bde0df67f6e48a6f0bcf3060f4a2ca75ef685b6180b8f717f8d672
Manifest2edceb6729e15dfa924dadb471f7a5a1c2e35ef7f1dd171f32091237822fb565

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
SignatureQ8LRQrxu6sA/Npg5HMd8q9qIPk4bmlH0p7abFImAfHMgwJLgmGvpDAj+5g4GZprq8h4eLlBQr1EF0NeNXTC8Dg==
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

2026-09-17T10:01:15.613527ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081190
observed f819c70669bde0df67f6e48a6f0bcf30...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:15.595394ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081190/manifest.json
observed 2edceb6729e15dfa924dadb471f7a5a1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:15.575443ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081190/publication.md
observed d53da218617e7b6eefebc3431d15a040...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:15.557601ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081190/publication.txt
observed dc8ec48b836dfb3c8ad4d411d146d604...
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.