OpenTechnical

OT-2026-000022151

Publication integrity record

Three cup vacuum gripper, three zone face, common isolation valve, 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-2026-000022151) never changes.

Identity and time

Publication numberOT-2026-000022151 · never reused
Internal UUID01a0ae6f-f4fb-700b-8f82-7152e041b2ea · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:16:07.953226Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000022151
StatusPUBLIC

Content hashes

Canonical text6792446e236caef0e018f8ffbeae6a28dc505e1372ef202334aa4d8aae182480
Markdown6c7abc160abbf56f5d15cb1ca99e48911d77ca165bc933f8dbc49f5750706be3
PDF
Publication page16d99926857c07c49a7379a96a6a1adbf42556a9d09785252b04e81fee1d4d2e
Manifest4319f6115ee1a59e59de26e91def359b57fe344373690192c333b2a6238a549f

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
SignaturegHfsd5C8FeAoUUtRRezgeT1igtrnptJy9PrrydZmiH27zLJ7CNCnD+RQi41lptSNPZvbK64zgfkjvKEJmW+dDw==
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

2026-09-17T11:52:49.726465ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022151
observed 16d99926857c07c49a7379a96a6a1adb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:52:49.708596ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022151/manifest.json
observed 4319f6115ee1a59e59de26e91def359b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:52:49.689390ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022151/publication.md
observed 6c7abc160abbf56f5d15cb1ca99e4891...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:52:49.672155ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022151/publication.txt
observed 6792446e236caef0e018f8ffbeae6a28...
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.