OpenTechnical

OT-2026-000031147

Publication integrity record

Three cup vacuum gripper, three zone face, three outlet manifold, plant vacuum fed, 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-2026-000031147) never changes.

Identity and time

Publication numberOT-2026-000031147 · never reused
Internal UUID01a0ae74-87ab-7d65-b53f-5b1a742b6545 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:21:07.653052Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000031147
StatusPUBLIC

Content hashes

Canonical textb8f0a61a82f19b674e0153ff471591c6df7e8f613c09e44b97ce865e8f44b2d4
Markdownbc244efbac5ba33a77696b0b4d0a6685fbf77cad99bfd7a8b742051e57b2001d
PDF
Publication pageb3136fb6b754b824ff937cd2966805d1da508065e67a1229232ee50697dda933
Manifest572686a043e0c02e20ee22a88f86e5abb06ac468397849c71d776c999dfad858

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
SignatureMEvzhv9xZU8UFlAWMoIDrlkRx58Y+i5bBn3EJjOSyIX37M1ZEdlUYl38t8l9ucUdoOlGKVy5n+FrszI6G9+cBw==
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

2026-09-17T11:35:35.492668ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031147
observed b3136fb6b754b824ff937cd2966805d1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:35.475578ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031147/manifest.json
observed 572686a043e0c02e20ee22a88f86e5ab...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:35.458706ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031147/publication.md
observed bc244efbac5ba33a77696b0b4d0a6685...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:35.442074ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031147/publication.txt
observed b8f0a61a82f19b674e0153ff471591c6...
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.