OpenTechnical

OT-2026-000021003

Publication integrity record

Three bellows cup vacuum gripper, three 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-2026-000021003) never changes.

Identity and time

Publication numberOT-2026-000021003 · never reused
Internal UUID01a0ae6f-65e4-74d3-b322-9c3adb4379df · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:31.316024Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000021003
StatusPUBLIC

Content hashes

Canonical text6b7b3e71802db20ecef10116471b0513f00eb4505dd49f7993086383e0639c15
Markdownee446fbf0a57c7abe15abb45d9507bc293043517bd0ff7a317e1dc42a7abfc5b
PDF
Publication pageb000180f1aac1e655cb3bb112a85a200fe5a21a3d49d9cc764da0a3277478850
Manifeste2780c5731fcb6e3bec7e3572105a27f3f205d82752044b1911448b1f12fecd7

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
SignatureDj+MgeUzyL2OKBm48P8A6RJ0JqAQMMfljgOmjlrB7CA665p+piPPQ9tkdTP6TfotHvs0RG1T3slblppYh63DCQ==
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

2026-09-17T11:56:09.671289ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021003
observed b000180f1aac1e655cb3bb112a85a200...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:56:09.653829ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021003/manifest.json
observed e2780c5731fcb6e3bec7e3572105a27f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:56:09.635647ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021003/publication.md
observed ee446fbf0a57c7abe15abb45d9507bc2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:56:09.617698ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021003/publication.txt
observed 6b7b3e71802db20ecef10116471b0513...
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.