OpenTechnical

OT-2026-000091007

Publication integrity record

Three bellows cup vacuum gripper, three 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-2026-000091007) never changes.

Identity and time

Publication numberOT-2026-000091007 · never reused
Internal UUID01a0ae9c-c011-7fa3-8645-21502f05193f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:03.518217Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000091007
StatusPUBLIC

Content hashes

Canonical text03de9034f0a3efaa29efaa2c1b56029d242ba5cfaa99b5877a7cb5cd43080286
Markdown09040bfccb2572c79f9ca2d6accb7ed67e5d2c4a70d18a6312e88a5d5b616365
PDF
Publication pageed3e8b4482318c189020511c685dd2859d0c05b089d8aca579fcd969e3a79dd8
Manifest0be6bf8fef456cd7270fc23d69ab99d00f13032421d0a993310afb8818dce1d9

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
SignatureRjrfBQ1mxEUZxTnsq3mly32yQsoNnFVsoKjj9Czaag7oM1LxdQm9uC7CG85ioondAgNoezaP3JpZG6dTUSrXAQ==
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

2026-09-17T09:44:14.511973ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091007
observed ed3e8b4482318c189020511c685dd285...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:14.492466ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091007/manifest.json
observed 0be6bf8fef456cd7270fc23d69ab99d0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:14.472506ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091007/publication.md
observed 09040bfccb2572c79f9ca2d6accb7ed6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:14.453656ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091007/publication.txt
observed 03de9034f0a3efaa29efaa2c1b56029d...
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.