OpenTechnical

OT-2026-000019773

Publication integrity record

Three cup vacuum gripper, three outlet manifold, pump fed, supply line 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-2026-000019773) never changes.

Identity and time

Publication numberOT-2026-000019773 · never reused
Internal UUID01a0ae6f-1fb4-7692-825f-238e28b74474 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:13.354643Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000019773
StatusPUBLIC

Content hashes

Canonical textb497a020c46e3a67fe1d4f6d5ec4d1ce74fc83d5f85d8025df3f95d0080aa576
Markdown837017211bc2c33290e63d8def5033816ee1d1713e6b008dd83a281397cb82ac
PDF
Publication page9be49743b3f9880e52b622570067ac41879549cd985c8d5dacf044c6c8e1c22a
Manifest76a742c4bc43eccd759ee4cb7f5cddff6d74e8953302c339f24f1497cd021a30

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
SignatureeMU8GbL11PCviwXPFvWpXsdH9BD1m/xql6WUtdfV0uxctVRyFhslIZ3ts1O2nYWM9OZaFqdEKgkGKRTCtey6Aw==
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

2026-09-17T11:57:56.902111ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019773
observed 9be49743b3f9880e52b622570067ac41...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:57:56.883550ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019773/manifest.json
observed 76a742c4bc43eccd759ee4cb7f5cddff...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:57:56.865072ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019773/publication.md
observed 837017211bc2c33290e63d8def503381...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:57:56.846613ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019773/publication.txt
observed b497a020c46e3a67fe1d4f6d5ec4d1ce...
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.