OpenTechnical

OT-2026-000073027

Publication integrity record

Four bellows cup vacuum gripper, four zone face, four outlet manifold, plant vacuum fed, 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-2026-000073027) never changes.

Identity and time

Publication numberOT-2026-000073027 · never reused
Internal UUID01a0ae92-c815-712a-b21d-28a5fc3cb953 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:10.336919Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000073027
StatusPUBLIC

Content hashes

Canonical textc42c8030f281c786da0fea9d1d19bd29c4f8482eac715e98e7cbdd5a38ba6704
Markdownb760c6c0140c2d6abacb65153848ae22fd5c02e8d2b7f0aa942aefb7286ba3e1
PDF
Publication page4393b6bc05a21a05f95bac4c9288adb0598d89f7af58a2ed83636b880cd64df9
Manifest9d5a684c1d1d368eb0715f6c6f464f84074720c557ac4061e9a7fd11a616f70f

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
SignatureXvbJ8oXIOgCj4qpyavn7kJNju4mM+Fktxsxtd1tIzXb+6ByD8AqR0cCJK9QGGfB530HqgkDH+SoSEF0K7lAhDg==
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

2026-09-17T10:21:58.033482ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073027
observed 4393b6bc05a21a05f95bac4c9288adb0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:58.016220ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073027/manifest.json
observed 9d5a684c1d1d368eb0715f6c6f464f84...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:57.994351ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073027/publication.md
observed b760c6c0140c2d6abacb65153848ae22...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:57.967391ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073027/publication.txt
observed c42c8030f281c786da0fea9d1d19bd29...
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.