OpenTechnical

OT-2026-000069381

Publication integrity record

Foam pad vacuum gripper, four zone face, four outlet manifold, pump fed, pressure sensor per zone, 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-2026-000069381) never changes.

Identity and time

Publication numberOT-2026-000069381 · never reused
Internal UUID01a0ae90-b529-7944-91a8-76c9a999d609 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:51:54.310022Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000069381
StatusPUBLIC

Content hashes

Canonical text5ac236fe54127a9ac16ba363790319910bbd0813f4d130d42ab25e5712bfd7a5
Markdownb78f2116c012b310729665815bce9dc3a8b87a536e42b3bc4aae2b2db130408d
PDF
Publication page57c1c5529385fb59cdb37b1b351425e480a924604016d219cb99b9317f30dd7e
Manifest611ea648bbe1d3acf3681004483a429424c972d078a5736af7106851ff1f0289

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
SignatureCQ062yDqDU+Yl997FWZhf30Vfs03LKCPs4cthx+Ux7Z5sLFknh4HQp7QYcCqlisubMBn8i9z5mKm6e9h2ZT+CQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T10:30:18.216747ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000069381
observed 57c1c5529385fb59cdb37b1b351425e4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:30:18.197222ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000069381/manifest.json
observed 611ea648bbe1d3acf3681004483a4294...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:30:18.177490ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000069381/publication.md
observed b78f2116c012b310729665815bce9dc3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:30:18.158768ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000069381/publication.txt
observed 5ac236fe54127a9ac16ba36379031991...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:27:58.724015ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000069381
observed 57c1c5529385fb59cdb37b1b351425e4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:27:58.706839ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000069381/manifest.json
observed 611ea648bbe1d3acf3681004483a4294...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:27:58.689474ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000069381/publication.md
observed b78f2116c012b310729665815bce9dc3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:27:58.673883ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000069381/publication.txt
observed 5ac236fe54127a9ac16ba36379031991...
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.