OpenTechnical

OT-2026-000007700

Publication integrity record

Two bellows cup vacuum gripper, two zone face, common isolation valve, 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-2026-000007700) never changes.

Identity and time

Publication numberOT-2026-000007700 · never reused
Internal UUID01a0ae62-843e-7499-a208-e5f75d3a1725 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:01:27.126957Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000007700
StatusPUBLIC

Content hashes

Canonical text1faef2c131d87bf96cc50ca25b7e0b6896f3da88014f14cd5308f87c888d3c67
Markdownb105e04e1f881380d3a46a861a4b48e90c07f1e08b091cb3f5d28896c5736d16
PDF
Publication page559190f524bf5ab37acfe949f4f8b2cf790add098ef2eaee6d5d68ced7c982d1
Manifest6898b25bc2f30b031a148f2f7190e2f8df3ebe6b90c530848bc3e55980e88cff

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
Signaturedox/wiDachVYLyG0vH3yu4Ew5bAdHv5cmMPGqbnsYmD76pQjHw+p0rribK+o97iA7lNjf7sv6cTTtfwZkyVeCw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:07:02Z
batch OT-TS-2026-W38-016 · RFC 3161 token · inclusion proof
root 8d90bf9341d96baa4328c218b6f85281...

Independent retrieval

2026-09-17T08:10:04.947128ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007700
observed 559190f524bf5ab37acfe949f4f8b2cf...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:10:04.930363ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007700/manifest.json
observed 6898b25bc2f30b031a148f2f7190e2f8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:10:04.913278ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007700/publication.md
observed b105e04e1f881380d3a46a861a4b48e9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:10:04.895663ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007700/publication.txt
observed 1faef2c131d87bf96cc50ca25b7e0b68...
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.