OpenTechnical

OT-2026-000086521

Publication integrity record

Four cup vacuum gripper, four zone face, common isolation valve, plant vacuum fed, sustained blow-off before 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-2026-000086521) never changes.

Identity and time

Publication numberOT-2026-000086521 · never reused
Internal UUID01a0ae9a-2c97-726c-a8db-3c1fbf930c1e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:02:14.823225Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000086521
StatusPUBLIC

Content hashes

Canonical text0edd75b3015064d870a9096d4dbcd5b5f31807bd5f9d46e6e94ef6ceb7651fd7
Markdown1b4049d9c9e1793b62388cc2c5f9714284c1d3d7191d4d8e6194474ba271d6b1
PDF
Publication page2fb1820b422790dddbc0fed73b43349e0a2d0812d63f541c26f5d35920382781
Manifesta9462b46bb6a0d4bf8a607b9d9110b31ee2faf01bb9e9a7cf1c889f3ce610eb9

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
Signaturewrtr+5qys2fVFRSluHbgBzmwMw28FqTF3g8EgN+qMy5HXUHzXzm25ppQhGtLBFTl88TMvRdwSoj9xqJRt0dOBg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T09:52:20.561896ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086521
observed 2fb1820b422790dddbc0fed73b43349e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:52:20.544794ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086521/manifest.json
observed a9462b46bb6a0d4bf8a607b9d9110b31...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:52:20.526840ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086521/publication.md
observed 1b4049d9c9e1793b62388cc2c5f97142...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:52:20.509727ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086521/publication.txt
observed 0edd75b3015064d870a9096d4dbcd5b5...
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.