OpenTechnical

OT-2026-000091030

Publication integrity record

Three bellows cup vacuum gripper, three zone face, common isolation valve, plant vacuum fed, 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-2026-000091030) never changes.

Identity and time

Publication numberOT-2026-000091030 · never reused
Internal UUID01a0ae9c-c012-7fd8-9d27-4f27a192e574 · 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-2026-000091030
StatusPUBLIC

Content hashes

Canonical textd73294910b66861fc9e1666d7e3e29b489b39d98b22cdcc7b474b07be214aa9e
Markdown794356362e9b9762704b31e8b2a396f3d4e8fa9688eb27d2dfc15c6d11fcec51
PDF
Publication pageb7ff3a4f490f056a48f74b50b293587798ae59a120572ba64f3fba67752d2508
Manifest29bc00bce3e76c0ffc590067bb5cf420463430bd60094f7fa59998e611bc6124

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
SignaturedjCT+1rvNe9dWo84QS2nOWjUDshpO1No0ahyO4T0sSgum0i/q9HdevK/NX7Ny3bZ6gaiyUi+NZ8TXpVmtqRgBA==
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

2026-09-17T09:44:16.385713ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091030
observed b7ff3a4f490f056a48f74b50b2935877...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:16.367745ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091030/manifest.json
observed 29bc00bce3e76c0ffc590067bb5cf420...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:16.351576ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091030/publication.md
observed 794356362e9b9762704b31e8b2a396f3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:16.333567ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091030/publication.txt
observed d73294910b66861fc9e1666d7e3e29b4...
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.