OpenTechnical

OT-2026-000013599

Publication integrity record

Three bellows cup vacuum gripper, three zone face, per zone isolation, 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-2026-000013599) never changes.

Identity and time

Publication numberOT-2026-000013599 · never reused
Internal UUID01a0ae6d-6fcb-79fc-a14d-6b985d5c0465 · 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-2026-000013599
StatusPUBLIC

Content hashes

Canonical textfac058dcc88dfab9d8c85eb75aa9feaef21d4174343023a72dda759585715e99
Markdown8d9fa6251d1ef98a474bb865760b192c94f5b2def1725f8586089d93e4ae4914
PDF
Publication page44db8e9f84504bcedd57ef6c5ffc34fb77241ed875ce8dc452bc5ae3da3dc0a1
Manifestfdc5955baa1ba1e447086c34bd0da08503406343eaff5cb180447e0a131af275

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
SignatureY6VXD3NP+TA4s+sDuHaUDitOCJi9MFD3aJ0QRDWZtwNC4NEk6fqhQ6rRz7i4DrdUDL4w11OfPHkAGEBju1YWDw==
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

2026-09-17T12:10:09.264294ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013599
observed 44db8e9f84504bcedd57ef6c5ffc34fb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:09.244072ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013599/manifest.json
observed fdc5955baa1ba1e447086c34bd0da085...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:09.221846ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013599/publication.md
observed 8d9fa6251d1ef98a474bb865760b192c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:09.200821ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013599/publication.txt
observed fac058dcc88dfab9d8c85eb75aa9feae...
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.