OpenTechnical

OT-2026-000019582

Publication integrity record

Foam pad vacuum gripper, common isolation valve, plant vacuum 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-2026-000019582) never changes.

Identity and time

Publication numberOT-2026-000019582 · never reused
Internal UUID01a0ae6e-f394-7d76-8e40-65de3aad5e13 · 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-2026-000019582
StatusPUBLIC

Content hashes

Canonical texte7c2b7d6043778b85a22cc6a504c530c7961a61bb6537a3b131bbdb179b36644
Markdowncf82a37a27bd07f97ae37b8ea062e9aef9cf8166c325c42658d0db69d79fc0aa
PDF
Publication pagea23726ea86b419de2df37321be4c17229672b411c50e85400b2fb0dace4b4cd1
Manifest08d7ccc814c006d9ebcc8789889fbff3a4aabfdd4f6341ea9ded7edfc2b7c1ec

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
SignatureKsCj+exJwFJa8BcDDINvRn61OOrY50Gp06nIySIU7xR6HxRLDw38KBBhfa0FGBGEW+hIq1yvblI0HGCDDChvCA==
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

2026-09-25T00:41:29.789819ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019582
observed a23726ea86b419de2df37321be4c1722...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-25T00:41:29.738598ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019582/manifest.json
observed 08d7ccc814c006d9ebcc8789889fbff3...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-25T00:41:29.671320ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019582/publication.md
observed cf82a37a27bd07f97ae37b8ea062e9ae...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-25T00:41:29.597309ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019582/publication.txt
observed e7c2b7d6043778b85a22cc6a504c530c...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-17T11:59:01.875312ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019582
observed a23726ea86b419de2df37321be4c1722...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:59:01.854811ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019582/manifest.json
observed 08d7ccc814c006d9ebcc8789889fbff3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:59:01.838068ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019582/publication.md
observed cf82a37a27bd07f97ae37b8ea062e9ae...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:59:01.821594ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019582/publication.txt
observed e7c2b7d6043778b85a22cc6a504c530c...
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

OT-CUSTODY-2026-W38OpenTechnical-Custody-2026-W38.tar.zst
f2fc69d02142424a578267e5e3a6d3bb... · 402,218,449 bytes · held by held on site pending an external custodian · retention permanent