OpenTechnical

OT-2026-000031242

Publication integrity record

Foam pad vacuum gripper, common isolation valve, pump fed, 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-2026-000031242) never changes.

Identity and time

Publication numberOT-2026-000031242 · never reused
Internal UUID01a0ae74-87ab-75d9-aa1a-60d021ed720d · 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-2026-000031242
StatusPUBLIC

Content hashes

Canonical textc9f6e370ece1166cbc1f2c4dcb89c3c5b185f75f6dfd7131f9a8bb0ca00a1fd8
Markdownefe4c9963883bec67c2cd2abdde8a38991c23cb403d27a93a819fceceddaad99
PDF
Publication page4032ca8d0027ae41399aa32b60536b384e000667d323223237b1f853be30f6a8
Manifesta5d1a262bc5c118c994ecfecb2cd551a1500993e5c0a120a37e19bb6e223b478

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
SignatureAKg9aaHGJpGsNEa6URPFqekUDqJmJoPzDjyiSaOeaGXxWTmDNVvuU22+o/lzA5FxuRTMDueQSby/Q0F6Tg/rCA==
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

2026-09-17T11:35:48.891777ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031242
observed 4032ca8d0027ae41399aa32b60536b38...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:48.874143ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031242/manifest.json
observed a5d1a262bc5c118c994ecfecb2cd551a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:48.853732ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031242/publication.md
observed efe4c9963883bec67c2cd2abdde8a389...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:48.835324ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031242/publication.txt
observed c9f6e370ece1166cbc1f2c4dcb89c3c5...
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.