OpenTechnical

OT-2026-000042513

Publication integrity record

Four cup vacuum gripper, four outlet manifold, common isolation valve, single 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-2026-000042513) never changes.

Identity and time

Publication numberOT-2026-000042513 · never reused
Internal UUID01a0ae7a-c0cd-7e9f-97a6-457725f98d5f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:27:55.489038Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000042513
StatusPUBLIC

Content hashes

Canonical textccae6ef5f52b0e1e53b1791d5d433b78d98114402a0468a78adb45c0731481b9
Markdownf9352cefadfea8b78625d19ed6db82883c2d8d6453b4e3966d374512deca95dc
PDF
Publication page8723298c4a8ab09fcdf1218304bc701ce3088912c43fd7da6ec2b61ecb885ba8
Manifestf36e9dc2b3cea59df7375b8483469d2867e3aa175c11d5266faadba8716b439a

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
SignatureTZqwudSDhdjQfoE2oTfhL01JGpQZBmI0Eqo62Hli7bxg6kmBr320kvX4+LtAOrSHDggnfDm84lAvDJmxITdUCg==
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

2026-09-17T11:14:05.655306ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042513
observed 8723298c4a8ab09fcdf1218304bc701c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:14:05.638456ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042513/manifest.json
observed f36e9dc2b3cea59df7375b8483469d28...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:14:05.619823ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042513/publication.md
observed f9352cefadfea8b78625d19ed6db8288...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:14:05.598240ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042513/publication.txt
observed ccae6ef5f52b0e1e53b1791d5d433b78...
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.