OpenTechnical

OT-2026-000012375

Publication integrity record

Three bellows cup vacuum gripper, three zone face, 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-2026-000012375) never changes.

Identity and time

Publication numberOT-2026-000012375 · never reused
Internal UUID01a0ae6d-39f6-74d1-bd48-23def7f9e889 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:08.998406Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000012375
StatusPUBLIC

Content hashes

Canonical text1937a3308e911543830b772de4d1ccb4b27e07298529b987acb692cc3b08f20c
Markdown7c0952b94d3cc01a09bc6b6ca18dc92c17230e2570052f3129cfdd5feafbd0f3
PDF
Publication page3bc1c6e873c145009cf10a529a2ba8d67ef1a9de9825db1e1902706a12379099
Manifest28eaffbb1fbe3436d6d5128ee233425da40873cb566bd056fbe5d252a1cc0c9b

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
Signaturez0WjqnNlB5XNMmdxKALWrdTNdKMGIRz+hxDNajT1ug4piJ7kmLIlpxBxZOAgaJRo6Q4G4nUyCSz9APAdBzbFBQ==
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

2026-09-17T12:11:51.651562ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012375
observed 3bc1c6e873c145009cf10a529a2ba8d6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:11:51.630955ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012375/manifest.json
observed 28eaffbb1fbe3436d6d5128ee233425d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:11:51.613720ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012375/publication.md
observed 7c0952b94d3cc01a09bc6b6ca18dc92c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:11:51.594859ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012375/publication.txt
observed 1937a3308e911543830b772de4d1ccb4...
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.