OpenTechnical

OT-2026-000009821

Publication integrity record

Four cup vacuum gripper, four outlet manifold, common isolation valve, single stage ejector, vented 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-2026-000009821) never changes.

Identity and time

Publication numberOT-2026-000009821 · never reused
Internal UUID01a0ae6b-cb78-7b83-9233-e4a46b40b89b · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:11:35.184400Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000009821
StatusPUBLIC

Content hashes

Canonical text33fef2e9a0ca3c766dfebd46999b153dcd2608fcbd6ea53f1cebb1b620710e9f
Markdownb074a52d003bf940de592c8b6abde5ed19d22a54257231daea510073bf586f79
PDF
Publication page5adadadde9b0d23550c2d31e4fdda5cb6abff56047dc91bee6bac3723ffa108b
Manifest7de0bbdf93b7988ed400a2b850fdb03f336f7a64dadfd0e01c7226941672187d

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
Signature+dp3MZOVVNKOTKYtbEafXYYFMldbQv78excJz9wxITomAZ9Ho6c87MpO65Zx/P1iIbfqkFpsJIe+TCrd1DAxBA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:27:08Z
batch OT-TS-2026-W38-017 · RFC 3161 token · inclusion proof
root 20fdfaa98ae3657e4211fd7783095876...

Independent retrieval

2026-09-17T12:15:48.702488ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000009821
observed 5adadadde9b0d23550c2d31e4fdda5cb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:15:48.683017ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000009821/manifest.json
observed 7de0bbdf93b7988ed400a2b850fdb03f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:15:48.664671ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000009821/publication.md
observed b074a52d003bf940de592c8b6abde5ed...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:15:48.644536ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000009821/publication.txt
observed 33fef2e9a0ca3c766dfebd46999b153d...
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.