OpenTechnical

OT-2026-000072957

Publication integrity record

Foam pad vacuum gripper, four zone face, four outlet manifold, 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-2026-000072957) never changes.

Identity and time

Publication numberOT-2026-000072957 · never reused
Internal UUID01a0ae92-c815-74c5-97e8-4f8c0c3e8933 · 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-2026-000072957
StatusPUBLIC

Content hashes

Canonical textc257fab9c1d22f7295c86ba1d901ac1eda167dd1f92662c320a9b0628d447148
Markdown7d4758ccadb68cacb28b0e4dc9feb9d7c1459c4a8364c7ec14e1c1357c0503f8
PDF
Publication page9858ab88b1b17303c40e3936c585503496c0e493f5f9885c19ddb881234e5cca
Manifest628fa56c515ae9d1be1727f12559643878c46d8bdaf7007d86e81a85f6b32fa3

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
Signature0HXmYCO6Yq1dvXJESknoDsy1uW4G+Z/VEysA2gNENe7KyGca4ZmxyC6OnEcbHRr5lhiHAMYORC3ZL6Yqp/2hDg==
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

2026-09-17T10:21:52.853719ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072957
observed 9858ab88b1b17303c40e3936c5855034...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:52.836693ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072957/manifest.json
observed 628fa56c515ae9d1be1727f125596438...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:52.818530ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072957/publication.md
observed 7d4758ccadb68cacb28b0e4dc9feb9d7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:52.799783ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072957/publication.txt
observed c257fab9c1d22f7295c86ba1d901ac1e...
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.