OpenTechnical

OT-2026-000073513

Publication integrity record

Three cup vacuum gripper, three zone face, six outlet manifold, pump 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-2026-000073513) never changes.

Identity and time

Publication numberOT-2026-000073513 · never reused
Internal UUID01a0ae92-efb9-734c-bdae-d1b3f75f6aab · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:20.363042Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000073513
StatusPUBLIC

Content hashes

Canonical text2a31552ae740fc4d1048ec155b98142060fd2bcdafdf41082270072645985dca
Markdownc4280d31925268d340823d9b9f78c4e700c1432fba3badbc0ced8a9b9ff21c21
PDF
Publication page8a589953a8183bb52610bea76b12d70d948f7d1c02583930b43bd519d77de02c
Manifestb827ff586210abbbaa7f13723bae2d79a6f52dee2a6c4bfde67aef15b4439bd7

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
SignatureoaHt4WuUNcZ7w7nHhnL9KJ0g1/dJCjCH0r3TQXRqJ5vpD21IpZUNlWowqmR/OH5kkGqUOVdkMb+1Sel5mbmqDg==
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

2026-09-17T10:21:41.050457ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073513
observed 8a589953a8183bb52610bea76b12d70d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:41.031712ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073513/manifest.json
observed b827ff586210abbbaa7f13723bae2d79...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:41.013482ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073513/publication.md
observed c4280d31925268d340823d9b9f78c4e7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:40.994853ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073513/publication.txt
observed 2a31552ae740fc4d1048ec155b981420...
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.