OpenTechnical

OT-2026-000013561

Publication integrity record

Two cup vacuum gripper, two outlet manifold, common isolation valve, 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-2026-000013561) never changes.

Identity and time

Publication numberOT-2026-000013561 · never reused
Internal UUID01a0ae6d-6fcb-7635-a085-2dd7c6fccd2b · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:22.837188Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000013561
StatusPUBLIC

Content hashes

Canonical text489a97a3b46c95ca549c77550637711938bb3225a7d697f82257b3116414f008
Markdowna5164178e93fb871921b1aa1f1a3117ea3ef042b351ff43a00fff664264c6c45
PDF
Publication pagec18b13832baf32ba74e975fbdfc5d0156c636db48296af0fe887c8c8a751351f
Manifestdf9182e39654513701f0df3a66ce1442e645467ac81f106bdb20b328a58427b5

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
Signaturefjc6KlzAlX+bRJK1vmWtOneE2J7TZTDRHAlESycwzAPod36aQX8PF6sIQHnqSbeKn5zrrsM9EsPS4a7X/oBsAQ==
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

2026-09-17T12:10:06.334485ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013561
observed c18b13832baf32ba74e975fbdfc5d015...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:06.317159ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013561/manifest.json
observed df9182e39654513701f0df3a66ce1442...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:06.299924ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013561/publication.md
observed a5164178e93fb871921b1aa1f1a3117e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:06.283715ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013561/publication.txt
observed 489a97a3b46c95ca549c775506377119...
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.