OpenTechnical

OT-2026-000031581

Publication integrity record

Three cup vacuum gripper, three outlet manifold, common isolation valve, three stage ejector, pulsed blow-off after 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-2026-000031581) never changes.

Identity and time

Publication numberOT-2026-000031581 · never reused
Internal UUID01a0ae74-87af-7cc0-bcf6-c7d856267880 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:21:07.653052Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000031581
StatusPUBLIC

Content hashes

Canonical text585af531945366e3bcef1f979d3e3d5076c865d8da717b2ca81f897b1553f6d0
Markdownb7a2ca21ff9daf774c14206d7ac068af427339d63aa516acd6e5eb556969e05b
PDF
Publication paged2c760efe7c5f5c3e3f432b556cec0b04ff7d1a6353808b0e6f53225fd5d8e31
Manifest942ac6411554dbf2b1aba0879fcbe7b23555b79269afa1145bd70233e04efd80

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
SignatureF+DWrEJjUZtjlLO/sf9b1XyxY0MPCODSr5/DS2s/vRU76EXQAvHVPahZDHUi8+wwK1n0vXTItRvhPPd5pCIgAA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:36:26.040412ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031581
observed d2c760efe7c5f5c3e3f432b556cec0b0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:26.023417ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031581/manifest.json
observed 942ac6411554dbf2b1aba0879fcbe7b2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:26.005838ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031581/publication.md
observed b7a2ca21ff9daf774c14206d7ac068af...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:25.988731ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031581/publication.txt
observed 585af531945366e3bcef1f979d3e3d50...
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.