OpenTechnical

OT-2026-000080505

Publication integrity record

Four bellows cup vacuum gripper, four zone face, per zone isolation, pump fed, sustained 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-2026-000080505) never changes.

Identity and time

Publication numberOT-2026-000080505 · never reused
Internal UUID01a0ae96-7e78-7023-90b3-e89961a8f4e8 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:13.512436Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000080505
StatusPUBLIC

Content hashes

Canonical text54c20a08a2775b2295d0c0970e6d35220aa3abf06cbb63ace73c1b8fcb4d48c3
Markdownd112ce214ff56cda9eb3bdc5cf77a00c019dbb2974434e476db24ef353cd980a
PDF
Publication pagead5e5a653b6ffd35a329ad3c840b62016914170601cda7417bb7271879828515
Manifestcbc88e18ff455847649b076b628deda81828e93290dfbbc1dc499d93654d611d

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
Signature+D1ja3q4LclY0UF/MCNZrcDFgago0shUMv0MhmwbRb7OEQAG3WvvOpl5C3sn78AG0OUfCsVMDeNbfQb1AEqUDA==
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

2026-09-17T10:03:01.634030ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080505
observed ad5e5a653b6ffd35a329ad3c840b6201...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:03:01.616172ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080505/manifest.json
observed cbc88e18ff455847649b076b628deda8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:03:01.598584ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080505/publication.md
observed d112ce214ff56cda9eb3bdc5cf77a00c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:03:01.579910ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080505/publication.txt
observed 54c20a08a2775b2295d0c0970e6d3522...
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.