OpenTechnical

OT-2026-000020589

Publication integrity record

Two cup vacuum gripper, two outlet manifold, pump fed, manifold pressure sensor, 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-2026-000020589) never changes.

Identity and time

Publication numberOT-2026-000020589 · never reused
Internal UUID01a0ae6f-437c-7bce-be17-f30d7446bf69 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:22.507199Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000020589
StatusPUBLIC

Content hashes

Canonical text1431b5a28defc986f81d7a853c3d2b3976310f98902ffe9c6357826f3c701b8d
Markdown81114f6b9d3402d561a4eb2d1d6994c927ff4237cadc1c023ee9b88f369c2fe6
PDF
Publication page6259b963e324cb41f0f4bcd072d5ee3889e447c61d85ecdeb0bdac7393d1a4ba
Manifest047cbde9f70da8aa939d32220d97e29bd0063b2dc24a7b7f24deb7b0ae1bb557

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
SignaturecvkjKihVxRg7qqUx1wRPSW1gKfcr/s5E8CgEkvHK0xD4yn1xk6HJw9i6bMluHw02WQ238LrnMXzzJAG1iQNpDg==
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

2026-09-17T12:00:43.481133ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020589
observed 6259b963e324cb41f0f4bcd072d5ee38...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:00:43.463744ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020589/manifest.json
observed 047cbde9f70da8aa939d32220d97e29b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:00:43.446877ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020589/publication.md
observed 81114f6b9d3402d561a4eb2d1d6994c9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:00:43.428959ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020589/publication.txt
observed 1431b5a28defc986f81d7a853c3d2b39...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:57:37.755810ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020589
observed 6259b963e324cb41f0f4bcd072d5ee38...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:57:37.738130ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020589/manifest.json
observed 047cbde9f70da8aa939d32220d97e29b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:57:37.719025ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020589/publication.md
observed 81114f6b9d3402d561a4eb2d1d6994c9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:57:37.699648ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020589/publication.txt
observed 1431b5a28defc986f81d7a853c3d2b39...
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.