OpenTechnical

OT-2026-000028915

Publication integrity record

Four bellows cup vacuum gripper, four zone face, per zone isolation, plant vacuum fed, 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-2026-000028915) never changes.

Identity and time

Publication numberOT-2026-000028915 · never reused
Internal UUID01a0ae73-2a9d-716c-a045-a508d562d5a1 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:38.288761Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000028915
StatusPUBLIC

Content hashes

Canonical text00e0816840c4a0e81a5768b4e7f36246f9c9564490f2cd89c0c3537cdc6eb144
Markdownb4736aed0836b0192625f3b47345a5337e71737de2eff9b9e19a5ad1a82081e8
PDF
Publication page2a43a6b3ee38380fcbff8d19464e7319f7a311cf7eca4ada4b2895adb0fdc62b
Manifesta3bc90b26cffc8587f9e0feb69ee2bab509340fc74a51dc5b48038dc74ead882

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
SignaturetPLv2IYD7WrU0CH9xqrLHMjcgYBlrISsQkVVox/rsL5JlPL3mNnoCFgPRjO0i6bNm6a3sqb4KkrjudEp0gCfCQ==
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

2026-09-17T08:20:19.699072ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028915
observed 2a43a6b3ee38380fcbff8d19464e7319...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:20:19.680910ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028915/manifest.json
observed a3bc90b26cffc8587f9e0feb69ee2bab...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:20:19.538622ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028915/publication.md
observed b4736aed0836b0192625f3b47345a533...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:20:19.520385ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028915/publication.txt
observed 00e0816840c4a0e81a5768b4e7f36246...
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.