OpenTechnical

OT-2026-000012641

Publication integrity record

Four cup vacuum gripper, four outlet manifold, common isolation valve, pump fed, pulsed 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-2026-000012641) never changes.

Identity and time

Publication numberOT-2026-000012641 · never reused
Internal UUID01a0ae6d-5561-702a-9fcd-5c049de74669 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:16.019734Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000012641
StatusPUBLIC

Content hashes

Canonical text82aa0d7836c2c10a6f59619c0d1a318db54c855df72b2e1e3bbe9564fe7f6ba9
Markdown8edd2dd65edce90344e1c60079d5de148ad4234e6a247247079b1b3404b67c4a
PDF
Publication page5cb799fed0a2155733c47866967c2a1774bf9c509a3a462f74f6eebd3556b32f
Manifest5260b5d6ad850c78788efb2123b1f801da44e1748706ea1e3fdc804627acb99a

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
Signature/9yyrHSE4zOjeN4SO5uaRdtdDifZwD+4H2QltUmuP00Rsj1BEx9opZeAPXHxoXxnSRX9ObMKsqQ6koy8ubAhBA==
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

2026-09-17T12:10:16.364466ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012641
observed 5cb799fed0a2155733c47866967c2a17...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:16.345573ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012641/manifest.json
observed 5260b5d6ad850c78788efb2123b1f801...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:16.325045ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012641/publication.md
observed 8edd2dd65edce90344e1c60079d5de14...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:16.304990ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012641/publication.txt
observed 82aa0d7836c2c10a6f59619c0d1a318d...
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.