OpenTechnical

OT-2026-000042289

Publication integrity record

Two cup vacuum gripper, two outlet manifold, common isolation valve, two stage ejector, sustained blow-off 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-2026-000042289) never changes.

Identity and time

Publication numberOT-2026-000042289 · never reused
Internal UUID01a0ae7a-5d73-7f9a-b5a2-c4eede9da5db · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:27:30.052779Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000042289
StatusPUBLIC

Content hashes

Canonical text8b55218b4fad9e687ada9a36417d5892428c286ca9cf4a6dd70f4abd5837fb38
Markdownd1eafa2e72ae3ecffc14b61928726e0470ff2066df34358636391f758f6f0052
PDF
Publication page3056089c4fbb72246f37db06a106b32107abf183e7a8aa3ca359c22e2b6c4f72
Manifestb444e976768c73e9c8c28183cd250af1db7acb05a0e9ad6a3afdf602f46053ec

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
Signature9vBHUllobaH+x/7C7F497Uf/a06WhzyyoWuJLnRLxRkb/oTnWDjr3GebU31vfg5I+GCokzfOQXr1Ix1ituUaCA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:15:59.027679ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042289
observed 3056089c4fbb72246f37db06a106b321...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:59.006055ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042289/manifest.json
observed b444e976768c73e9c8c28183cd250af1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:58.987267ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042289/publication.md
observed d1eafa2e72ae3ecffc14b61928726e04...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:58.967816ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042289/publication.txt
observed 8b55218b4fad9e687ada9a36417d5892...
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.