OpenTechnical

OT-2026-000013847

Publication integrity record

Four bellows cup vacuum gripper, four zone face, per zone isolation, three 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-2026-000013847) never changes.

Identity and time

Publication numberOT-2026-000013847 · never reused
Internal UUID01a0ae6d-8de9-7669-9d3d-908661b69624 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:30.489074Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000013847
StatusPUBLIC

Content hashes

Canonical text1af1caf77d7a6dcc84b87d6f18b7179e7b3b64213d9a0e90965d882bbf73be2c
Markdown19e558895f5e192672842375a63e5e128527a878e2ca774336355067a917f2ec
PDF
Publication pagea64bdd0f4b10109936732d4e8b3e29e606bdb78babc9e4b91e2f9b7afdb18ef2
Manifest886cb186f6b2962a36f98f595bf05e8d99a80e8cf9a0988ed2d4898659240f30

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
SignatureGXbZ9pRY+maXdTDvC88fDabnkGuxaop1AlSIXUPqlOm/LPLXLCrREFBE5lC/1lPTGGR9rwNwXEbzTgkPa5HrAg==
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

2026-09-17T12:08:57.282543ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013847
observed a64bdd0f4b10109936732d4e8b3e29e6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:08:57.264708ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013847/manifest.json
observed 886cb186f6b2962a36f98f595bf05e8d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:08:57.245468ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013847/publication.md
observed 19e558895f5e192672842375a63e5e12...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:08:57.226577ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013847/publication.txt
observed 1af1caf77d7a6dcc84b87d6f18b7179e...
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.