OpenTechnical

OT-2026-000012991

Publication integrity record

Two cup vacuum gripper, two zone face, per zone isolation, two stage ejector, 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-2026-000012991) never changes.

Identity and time

Publication numberOT-2026-000012991 · never reused
Internal UUID01a0ae6d-5564-79d8-9b9d-2505094ea262 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:16.019734Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000012991
StatusPUBLIC

Content hashes

Canonical text0d1a1ffda39672471d070bf5a7796ce0271c3bd035a7c774186e42612640f241
Markdownfd8a5a8785306d677f43ff0022bf9dd0cd9e6dcceb29e78e2cc7ee9616c68d99
PDF
Publication pageb18481354ee00b9aca209bc3a0d10f1e7f13b5c048549c7b00d7b639834b2077
Manifest0c107f7e4ae769803f9b779fc46845aca320a9c347813b3bcaf8ffa8cc7ac5a4

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
SignatureIQi6OWDz7ni8ZyeCzRXG+i6yASFsZMiVUaBvPtjbR9o34fUcDHKOilwu/C2cbr+fz1UR18SArfNYVhmkHBg+Cg==
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

2026-09-17T12:10:48.498155ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012991
observed b18481354ee00b9aca209bc3a0d10f1e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:48.480312ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012991/manifest.json
observed 0c107f7e4ae769803f9b779fc46845ac...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:48.462174ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012991/publication.md
observed fd8a5a8785306d677f43ff0022bf9dd0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:48.441679ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012991/publication.txt
observed 0d1a1ffda39672471d070bf5a7796ce0...
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.