OpenTechnical

OT-2026-000091124

Publication integrity record

Foam pad vacuum gripper, four zone face, common isolation valve, three stage ejector, pressure sensor per zone, sustained 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-2026-000091124) never changes.

Identity and time

Publication numberOT-2026-000091124 · never reused
Internal UUID01a0ae9c-f16b-7e03-ae66-7a8f6086f78c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:16.158740Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000091124
StatusPUBLIC

Content hashes

Canonical textf998c41dfe153d9e893a3c5d40b6ba2a3de3e360c4537d84abd65b5eb1a27d5a
Markdown4cc6588ed70a3fd3b7094640ed44fb79cd5cace95261024c0d3ca3e50e234ac5
PDF
Publication page6011eccaee95238558367632496c88fc10dd8b1262dd44dc6763a3a55af59bfb
Manifest47e8d65651b21256bda37c444cd276431b02d8eb8755d4eea93c8746624bd430

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
SignatureIdRWON9EoBhGkjbt33tTXm+THAFmkAFyBnDpdliHH1HJMmLW9Tn4UZjCJ6HYZEOwdRKuf0yDnnpPB6vFTyO7Bg==
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

2026-09-17T09:43:16.721642ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091124
observed 6011eccaee95238558367632496c88fc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:16.703586ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091124/manifest.json
observed 47e8d65651b21256bda37c444cd27643...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:16.685256ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091124/publication.md
observed 4cc6588ed70a3fd3b7094640ed44fb79...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:16.666645ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091124/publication.txt
observed f998c41dfe153d9e893a3c5d40b6ba2a...
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.