OpenTechnical

OT-2026-000077213

Publication integrity record

Three cup vacuum gripper, three zone face, common isolation valve, single stage ejector, 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-2026-000077213) never changes.

Identity and time

Publication numberOT-2026-000077213 · never reused
Internal UUID01a0ae94-f508-7d53-a3d0-029777250c05 · 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-2026-000077213
StatusPUBLIC

Content hashes

Canonical texta2880039b629e379df2c2c30babfd5392a6ec09cd9047c37c8261eae5a741364
Markdown893e127bf67419d220df6b4b229f2109f7a99f4e5e00a8a95143b4f23dca7629
PDF
Publication pagef0f1bca249b0e3478d8d2dfa66bf203789ad603d768dd516d56218205b3e0f58
Manifest9e0b43e7451298b288135d232f1fa7473be696b395cdcb3e0441dade118a7128

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
SignaturexhUBdnzJGDvdaVMN4S0l8Wgj80t4WiEtb1U06aFfrm0QoSnmFwRF6eHmT6WFnTyJrbwSS5Vr2jF+mS43I4irAg==
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

2026-09-17T10:08:48.902406ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077213
observed f0f1bca249b0e3478d8d2dfa66bf2037...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:48.885227ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077213/manifest.json
observed 9e0b43e7451298b288135d232f1fa747...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:48.865416ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077213/publication.md
observed 893e127bf67419d220df6b4b229f2109...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:48.846782ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077213/publication.txt
observed a2880039b629e379df2c2c30babfd539...
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.