OpenTechnical

OT-2026-000021363

Publication integrity record

Foam pad vacuum gripper, four zone face, per zone isolation, three stage ejector, pulsed blow-off before set-down

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-2026-000021363) never changes.

Identity and time

Publication numberOT-2026-000021363 · never reused
Internal UUID01a0ae6f-865c-791b-92e8-e04dc33e3129 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:39.631048Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000021363
StatusPUBLIC

Content hashes

Canonical text3d7019116059ac0c51f546553b204bc0e18208337ac212724d5b844f1f600bce
Markdowna38d3b9009e43dedfbd7bd6d61730dbcf59183198819e3c7eeabd85c5fac0521
PDF
Publication page8c744f2004e2398eb3bf8c86ebce92f5dba74b9612a123f7f073b2615c322c35
Manifest8f373b29b34f93369b93ae88452579b15dd8e83bd7283a5056cd49df3959b3ac

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
SignatureESR9n92+F6fgsPknBmyv1h9uaBqE7yHLMs7L90OvH7GBwvR+fdexIxHMg2V/fS6+lXDdzvecvbSIxi4OjO9sDw==
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

2026-09-17T11:55:13.611893ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021363
observed 8c744f2004e2398eb3bf8c86ebce92f5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:13.589954ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021363/manifest.json
observed 8f373b29b34f93369b93ae88452579b1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:13.570869ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021363/publication.md
observed a38d3b9009e43dedfbd7bd6d61730dbc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:13.552293ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021363/publication.txt
observed 3d7019116059ac0c51f546553b204bc0...
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.