OpenTechnical

OT-2026-000031683

Publication integrity record

Three cup vacuum gripper, three zone face, four outlet manifold, two stage ejector, 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-2026-000031683) never changes.

Identity and time

Publication numberOT-2026-000031683 · never reused
Internal UUID01a0ae74-bad0-7dcb-836a-9b2aa110508f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:21:20.739935Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000031683
StatusPUBLIC

Content hashes

Canonical text7654f58761d8c813c8e712596332da90a28199b1b0ee29f223647458ca061c4d
Markdown83a547def1f066570aad9eabae2b9b91bb3ed79e4f32d85ff1ac031a51ecdb53
PDF
Publication page8827d8a06e7dba4e418fe2cd5a49d922c23eb5816c6af0e390be7bcf1ed0a6e1
Manifest94bea96260f10fa5b81ef3d51a407c1650e34f218c8bc602dc2249012a8cac4e

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/JJ4xZ71vZ3Q/tyorC7cKRr2ziOMo5X1/Eu1u2AKyU0Xw9nmZKN8i2s0y0dEVrFT+lpEK5B+YqHuQ3NI4++XCA==
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

2026-09-17T11:34:47.064023ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031683
observed 8827d8a06e7dba4e418fe2cd5a49d922...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:34:47.048778ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031683/manifest.json
observed 94bea96260f10fa5b81ef3d51a407c16...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:34:47.028262ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031683/publication.md
observed 83a547def1f066570aad9eabae2b9b91...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:34:47.006739ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031683/publication.txt
observed 7654f58761d8c813c8e712596332da90...
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.