OpenTechnical

OT-2026-000029320

Publication integrity record

Three bellows cup vacuum gripper, three outlet manifold, common isolation valve, pump fed, sustained 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-2026-000029320) never changes.

Identity and time

Publication numberOT-2026-000029320 · never reused
Internal UUID01a0ae73-5e20-78fb-b13c-822794c71a6a · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:51.545382Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000029320
StatusPUBLIC

Content hashes

Canonical text371d0877f27b3e309e35d71c90fdcc1335983cafb19cd41b5da3b624c8e3d5e3
Markdownad8b6a6d453fbd708b7c382ce71b6c8c5dcdfbec6e1964521c54190a582edff8
PDF
Publication pagef790cd9dc279f0f6a5e721d731511f1e3c4c991333478391c5947b38d3d3d937
Manifest44f4fa4524439cd44ac028c49a73253161a4254051247dc1ebaacbe4ff2dfa76

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
SignatureVDRKb7Ehmzlbo4bOXjtljmLAe8FzSPtMn9ZVnYmwrQTycO5sPLUQaNVlyGbYONppFqQa8ovca4fxzLHdVG94BA==
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

2026-09-17T11:38:51.927011ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029320
observed f790cd9dc279f0f6a5e721d731511f1e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:51.906553ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029320/manifest.json
observed 44f4fa4524439cd44ac028c49a732531...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:51.889429ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029320/publication.md
observed ad8b6a6d453fbd708b7c382ce71b6c8c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:51.872779ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029320/publication.txt
observed 371d0877f27b3e309e35d71c90fdcc13...
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.