OpenTechnical

OT-2026-000071703

Publication integrity record

Four cup vacuum gripper, four zone face, common isolation valve, two stage ejector, supply line pressure sensor, 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-2026-000071703) never changes.

Identity and time

Publication numberOT-2026-000071703 · never reused
Internal UUID01a0ae92-1e91-716b-96d2-80e7bfc15a16 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:26.841552Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000071703
StatusPUBLIC

Content hashes

Canonical text9d18b7ca65abcf611364e8cf5e087e105ece437ce27be9ef1771a4d893356476
Markdowncd1724246f86a7e9841b7bb2be72fe93db5a8f6a4d888e83f004620f80da86d9
PDF
Publication page0f985804808347147fc08c2b32cba1a3bb0d46580d45ec181dd218619d737105
Manifest6ee595bbd58e4e8257e8647fd4b2baf069ce6c5cfda01977cfaa7420b7db6108

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
SignatureBeP6WLu7xeJxZfAhSsHntBdNa2o9EWp5B1gg8Pir3DIHSu+QBkJCQ2o3Wzo+HBd2KQKrMUqP+KFmoWeTf61iDQ==
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

2026-09-17T10:23:46.171183ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071703
observed 0f985804808347147fc08c2b32cba1a3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:46.146098ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071703/manifest.json
observed 6ee595bbd58e4e8257e8647fd4b2baf0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:46.119373ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071703/publication.md
observed cd1724246f86a7e9841b7bb2be72fe93...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:46.092474ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071703/publication.txt
observed 9d18b7ca65abcf611364e8cf5e087e10...
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.