OpenTechnical

OT-2026-000020693

Publication integrity record

Three cup vacuum gripper, three outlet manifold, pump fed, manifold pressure sensor, 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-2026-000020693) never changes.

Identity and time

Publication numberOT-2026-000020693 · never reused
Internal UUID01a0ae6f-65e2-795d-a428-ccb51ce35332 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:31.316024Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000020693
StatusPUBLIC

Content hashes

Canonical text4245998908902a467fe8148b5e0031f6786a923beb17480a7ae983332adb6625
Markdown03d589349b666d2cdba416090e6453d1a0a2da6906fff720ffc05b6515b3b446
PDF
Publication page0c2ca7095e5320ca0b9703d2e48e42b0f4d76a034fc4e0bd47414d85de3a3ea6
Manifest6f11fddc13d1d3e1a98fdcefc89b31deafcdd2733269961d63b2494b70ec7baf

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
SignatureP1gBsNvmlIXbzMKoqcDFFhgG8CY6BxKHSMioSi2zXurvLH8EUjV+/O6vnwqny8gu6+JcXWM1ymeeWw4Z0GEICg==
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

2026-09-17T11:55:44.182558ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020693
observed 0c2ca7095e5320ca0b9703d2e48e42b0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:44.163488ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020693/manifest.json
observed 6f11fddc13d1d3e1a98fdcefc89b31de...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:44.145929ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020693/publication.md
observed 03d589349b666d2cdba416090e6453d1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:44.127567ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020693/publication.txt
observed 4245998908902a467fe8148b5e0031f6...
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.