OpenTechnical

OT-2026-000008615

Publication integrity record

Foam pad vacuum gripper, three zone face, common isolation valve, plant vacuum fed, pressure sensor per zone, vented 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-2026-000008615) never changes.

Identity and time

Publication numberOT-2026-000008615 · never reused
Internal UUID01a0ae6a-e46b-7d3a-829c-1443d89e1c80 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:10:36.030441Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000008615
StatusPUBLIC

Content hashes

Canonical text0399206b40571cabbb5ef0fea76171159b9e195eefb3db89f638c316cf6232b4
Markdown115643a98d730c97303db9ebc2316013b6b231575170b18559fc171a71e751c0
PDF
Publication paged07a5f3d93c83e8c657514848d529f25b8612b6306c86ea7d63aecc2e292ef2a
Manifestcf37de1bb4591e913616e149fa11b833294c592d76f6ad2fec082955270bb4e2

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
Signature0fgPIxN8IjzcPxeXBIa53dDQepzkK6e9HI22WjQ4Ycqzv0LEPtTsDKR3z+btae3O8JjDetvTC12KBcGq2QuqCw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:27:08Z
batch OT-TS-2026-W38-017 · RFC 3161 token · inclusion proof
root 20fdfaa98ae3657e4211fd7783095876...

Independent retrieval

2026-09-17T12:18:34.450637ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000008615
observed d07a5f3d93c83e8c657514848d529f25...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:18:34.432473ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000008615/manifest.json
observed cf37de1bb4591e913616e149fa11b833...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:18:34.394656ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000008615/publication.md
observed 115643a98d730c97303db9ebc2316013...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:18:34.362727ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000008615/publication.txt
observed 0399206b40571cabbb5ef0fea7617115...
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.