OpenTechnical

OT-2026-000042372

Publication integrity record

Three bellows cup vacuum gripper, three outlet manifold, common isolation valve, plant vacuum fed, pulsed blow-off after 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-2026-000042372) never changes.

Identity and time

Publication numberOT-2026-000042372 · never reused
Internal UUID01a0ae7a-5d74-7be7-b9cb-545480b73363 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:27:30.052779Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000042372
StatusPUBLIC

Content hashes

Canonical textcdacd96d760502a02184d3c80b6e2bfa58aebfa69f46a77c62ca8ff5ca628dce
Markdown424449c84abe14949d0f14862da5c1f4fe374ef7edbb11514ea4b3bde8d9fc99
PDF
Publication page29412936bf5b40c58a04cf2dbbc1e0a48181f8665016625c2a4af356aa35a710
Manifest377ac4cf888ac0e212c4a9bfc82e7bd2c14fff0ff261134363ee3f8ad20aac93

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
SignaturezG69VyVXDzhFG6hrbm+zAO0/aqc8aGlqOMNoRyyEoAhBbfZ6oUT3jBsRjz/gxBdZbRCGwzuJAKiImtPcVKeXBw==
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

2026-09-17T11:16:09.674967ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042372
observed 29412936bf5b40c58a04cf2dbbc1e0a4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:16:09.656214ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042372/manifest.json
observed 377ac4cf888ac0e212c4a9bfc82e7bd2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:16:09.638414ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042372/publication.md
observed 424449c84abe14949d0f14862da5c1f4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:16:09.618392ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042372/publication.txt
observed cdacd96d760502a02184d3c80b6e2bfa...
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.