OpenTechnical

OT-2026-000015175

Publication integrity record

Four bellows cup vacuum gripper, four zone face, common isolation valve, plant vacuum fed, pulsed 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-2026-000015175) never changes.

Identity and time

Publication numberOT-2026-000015175 · never reused
Internal UUID01a0ae6d-ef47-7650-bba4-669e350e0db8 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:55.421510Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000015175
StatusPUBLIC

Content hashes

Canonical textad8ac6a7916181f6d762586417b9eb4f7571f3d9228bc6f3b9524ed370acfcad
Markdownba247e09448297b33bcc9bf43b84d3f7bb84e8dafa21290928f38564b402aec3
PDF
Publication pagea260f851ba6cd8c8e6f69c6540fe980c21e18a48c5c4aa94a044bc89f134f591
Manifest75aea543892551a036f38f6f1dfe41d8af82863563783d578645aa406cc686a3

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
SignatureXe0cz4Gp2I9BWJcXpyzyQyjwjQSczvLQ+LDdK5bdqzHr91I9lejjxYqotthNqn0hrNLB+/58HDNZvwClVtS6CQ==
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

2026-09-17T12:05:47.753725ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015175
observed a260f851ba6cd8c8e6f69c6540fe980c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:05:47.735690ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015175/manifest.json
observed 75aea543892551a036f38f6f1dfe41d8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:05:47.716124ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015175/publication.md
observed ba247e09448297b33bcc9bf43b84d3f7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:05:47.696032ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015175/publication.txt
observed ad8ac6a7916181f6d762586417b9eb4f...
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.