OpenTechnical

OT-2026-000030445

Publication integrity record

Two cup vacuum gripper, two outlet manifold, common isolation valve, pump fed, manifold pressure sensor, 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-2026-000030445) never changes.

Identity and time

Publication numberOT-2026-000030445 · never reused
Internal UUID01a0ae73-e503-789a-8f79-a9da052e9e21 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:20:26.007257Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000030445
StatusPUBLIC

Content hashes

Canonical texteec2785245843fa85b697dab935741615a8ce8222bb49b538b80d4a0d874e05b
Markdown1b6fa88d3d5aa63aa6543e5033b62e78cdeef30a093d68282d822996801e1414
PDF
Publication page000b71aa3e4caf2c7a9870fd90d298392d3584cb33f202c935ded386d1a94941
Manifest82be55832a2bb9c2d0b1451522c3fac4fa6d994a47668d27d6700bbc8225f2cc

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
SignatureoHD3450l0HsU2b2GdWCGCaJWt74pTZhGElGpxhAnpEc5P+0WM4YxuHoln6VFsy/coiuRDf2c+xeTsFrXrd3IBw==
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

2026-09-17T11:38:11.237540ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030445
observed 000b71aa3e4caf2c7a9870fd90d29839...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:11.217968ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030445/manifest.json
observed 82be55832a2bb9c2d0b1451522c3fac4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:11.199663ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030445/publication.md
observed 1b6fa88d3d5aa63aa6543e5033b62e78...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:11.180875ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030445/publication.txt
observed eec2785245843fa85b697dab93574161...
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.