OpenTechnical

OT-2026-000031381

Publication integrity record

Six cup vacuum gripper, six outlet manifold, plant vacuum fed, pulsed blow-off after 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-2026-000031381) never changes.

Identity and time

Publication numberOT-2026-000031381 · never reused
Internal UUID01a0ae74-87ad-798d-97fb-9dc0a1f0d1dc · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:21:07.653052Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000031381
StatusPUBLIC

Content hashes

Canonical text564fe403a68dc7165f2ac6c10d0ed61243ca18cc27608766c1cd3fe811f2d08e
Markdown680423ee6144a43d0b70f229c2ce81bc361d4ff317826f975cc276599ef09537
PDF
Publication page4020f7256e94d14498ea8a37e512b35fc95b3f7b406c6f5a6c6fb59b0f7a1fe9
Manifestbcb5194c23cb9cce68aa91db6c5820c43a5ba2d26b9ffa5c3219441a89f9c04b

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
SignatureN7hwWAC79m0P323LbnGwhzBcgQ2LPsLBUVciehMwoRjAOcrAJlotKbHOHmaFgawTosrHzTARXdaAG5+G4PpzCw==
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

2026-09-17T11:36:05.304466ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031381
observed 4020f7256e94d14498ea8a37e512b35f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:05.287490ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031381/manifest.json
observed bcb5194c23cb9cce68aa91db6c5820c4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:05.270667ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031381/publication.md
observed 680423ee6144a43d0b70f229c2ce81bc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:05.253536ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031381/publication.txt
observed 564fe403a68dc7165f2ac6c10d0ed612...
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.