OpenTechnical

OT-2026-000077179

Publication integrity record

Foam pad vacuum gripper, three zone face, common isolation valve, 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-2026-000077179) never changes.

Identity and time

Publication numberOT-2026-000077179 · never reused
Internal UUID01a0ae94-f508-78b7-b96b-f0add91bd2ed · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:56:32.796581Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000077179
StatusPUBLIC

Content hashes

Canonical textbff206cf657dab227be52e0486b70994b43b733f67829c70360379c03a9506e3
Markdown0729b2e4be72795093760c4e400d6142d02258ed90e7bd956a770dfe1d56189e
PDF
Publication page6df7ac0bdbff4c402e0c94324445a303407bedddba5af1dad90cc44896333d7f
Manifest7ddf948c86281abff27520002066bc84f2fb52b1329b91ce1b1ae8230e710afe

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
SignatureKg034B4YFlltnv3boHWmGawFZdd9WnbOen701PGwEEFLbhrQ7JCzgRaCrT94h4Uhl7iB9xdtDuEL+7bIsqx5CQ==
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

2026-09-17T10:12:01.473744ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077179
observed 6df7ac0bdbff4c402e0c94324445a303...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:12:01.455387ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077179/manifest.json
observed 7ddf948c86281abff27520002066bc84...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:12:01.311298ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077179/publication.md
observed 0729b2e4be72795093760c4e400d6142...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:12:01.273527ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077179/publication.txt
observed bff206cf657dab227be52e0486b70994...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:39.101796ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077179
observed 6df7ac0bdbff4c402e0c94324445a303...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:39.081469ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077179/manifest.json
observed 7ddf948c86281abff27520002066bc84...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:39.060731ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077179/publication.md
observed 0729b2e4be72795093760c4e400d6142...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:39.041216ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077179/publication.txt
observed bff206cf657dab227be52e0486b70994...
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.