OpenTechnical

OT-2026-000031222

Publication integrity record

Foam pad vacuum gripper, common isolation valve, plant vacuum fed, pulsed blow-off after set-down

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-2026-000031222) never changes.

Identity and time

Publication numberOT-2026-000031222 · never reused
Internal UUID01a0ae74-87ab-7eea-9dd1-a80a27d5754a · 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-2026-000031222
StatusPUBLIC

Content hashes

Canonical textb4bf8dce6644de52b92cb8f8b4e8ecf866cce38b11234194980329486420136f
Markdown3c884d45f55f9e7c0ad1eecaee524e2227fd690ecfefe4c611f128d3a2c518fb
PDF
Publication page980df3c1fea3c3658e26438d3b3f9471aea007c4bfe6f6428b2338bee2ad43a2
Manifest93e372bccfb8a5b9e08cb263cd8d97d169af9fa5a5638e6610e106bc66cd337f

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
Signature5MHiyShQ+6etZD8557uUUUtCeaG60GbIXkSET6u8y5kO3HXM/XaE7uiR0UR0TiwQvmhudW5xvhBMHLkLOv9iAQ==
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

2026-09-17T11:35:47.399480ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031222
observed 980df3c1fea3c3658e26438d3b3f9471...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:47.365084ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031222/manifest.json
observed 93e372bccfb8a5b9e08cb263cd8d97d1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:47.348050ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031222/publication.md
observed 3c884d45f55f9e7c0ad1eecaee524e22...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:47.312015ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031222/publication.txt
observed b4bf8dce6644de52b92cb8f8b4e8ecf8...
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.