OpenTechnical

OT-2026-000102208

Publication integrity record

Two bellows cup vacuum gripper, two zone face, common isolation valve, pump fed, pulsed blow-off after 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-2026-000102208) never changes.

Identity and time

Publication numberOT-2026-000102208 · never reused
Internal UUID01a0aea4-50f3-72a7-889d-bb37dfe04b46 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:13:19.361569Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000102208
StatusPUBLIC

Content hashes

Canonical textd2666455546ebd03a588f8ec0f1bdfbb2541ef0e241c6029c750b12c6ed8c9a1
Markdown7bfb3f5a0f2f53d127e69d70c2d2fdcbd331880f1228123f450bc3230d891aa9
PDF
Publication page50c3a1c69f0ad46027d36fd94c6e2b5aa9dcec2d7c2e0c19a883d31abb35b924
Manifesta1955e1a650a4f27c0f00cfcd3a9ada563a607f06e4cbf635c46fcd97539c81c

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
SignatureBpgTyMnOOXPiN+WLFCuNjI075omC+A44yv2r/588CB1Ef33obZZQ83yC5S6IPRcqzUPT6jkVXhlBbqgtpcDDCQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:27:04Z
batch OT-TS-2026-W38-023 · RFC 3161 token · inclusion proof
root 095d30148a2ef87d42d7818ebe7543f9...

Independent retrieval

2026-09-17T09:25:22.970772ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000102208
observed 50c3a1c69f0ad46027d36fd94c6e2b5a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:25:22.952759ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000102208/manifest.json
observed a1955e1a650a4f27c0f00cfcd3a9ada5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:25:22.934479ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000102208/publication.md
observed 7bfb3f5a0f2f53d127e69d70c2d2fdcb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:25:22.915721ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000102208/publication.txt
observed d2666455546ebd03a588f8ec0f1bdfbb...
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.