OpenTechnical

OT-2026-000013402

Publication integrity record

Four pad foam vacuum gripper, four outlet manifold, 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-2026-000013402) never changes.

Identity and time

Publication numberOT-2026-000013402 · never reused
Internal UUID01a0ae6d-6fca-7feb-830e-2588ca3f4386 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:22.837188Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000013402
StatusPUBLIC

Content hashes

Canonical textcb57834bc119fc7a9b522253a0b73705dd12a9c65d8639b94da3954b2b7561c7
Markdownb07858d971a273740124600a9182deefb556312c589ea7c97b916e104f621708
PDF
Publication pageb1fa14665989a3ee6c80e2f6cf7dcdf807a3baa5882c8647554d66180e71459b
Manifest19fc12d8038f144570522afa0269fecfa7cec0ae895a5f551a895fd639e508fb

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
SignatureCqRltM/g0MvylCGCV/Q6SgBJHBPpEatAIDKqOqWnqmMF09wshmoVJYTLyLHPN/0oOKCFdN3Oc9kHw7l8PwMKDw==
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

2026-09-17T12:09:52.661169ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013402
observed b1fa14665989a3ee6c80e2f6cf7dcdf8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:52.643976ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013402/manifest.json
observed 19fc12d8038f144570522afa0269fecf...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:52.623909ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013402/publication.md
observed b07858d971a273740124600a9182deef...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:52.605558ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013402/publication.txt
observed cb57834bc119fc7a9b522253a0b73705...
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.