OpenTechnical

OT-2026-000019580

Publication integrity record

Two bellows cup vacuum gripper, two outlet manifold, common isolation valve, 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-2026-000019580) never changes.

Identity and time

Publication numberOT-2026-000019580 · never reused
Internal UUID01a0ae6e-f394-79f8-83ec-2361c517cbcc · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:02.050431Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000019580
StatusPUBLIC

Content hashes

Canonical text8dd17162b7db6ebb92a41c5d21baced1e0ba8935fed6d3f63f9dc7d74f64e265
Markdown4ce8664426b9a613c783551ded893c8e2f0fb304871237dc0336e699a8076a8f
PDF
Publication page3d063daac13faf8d17d912ef781bad1d4213f1da04b754c5f45eaf3bc368c615
Manifest95247820b8e8323ca422a9f6d6f55a24ffa742fe1a6a134c5ceb95545c421e18

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
SignaturekPZG7gH73dkpwXaQqEzmX2bPVWb/DZp9PcTWwOs/08wZdLfFpjMohmL8VVrh80On0N940xe+xtEmUO4bBi/9Ag==
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

2026-09-17T11:59:01.699576ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019580
observed 3d063daac13faf8d17d912ef781bad1d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:59:01.682517ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019580/manifest.json
observed 95247820b8e8323ca422a9f6d6f55a24...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:59:01.666184ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019580/publication.md
observed 4ce8664426b9a613c783551ded893c8e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:59:01.648528ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019580/publication.txt
observed 8dd17162b7db6ebb92a41c5d21baced1...
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.