OpenTechnical

OT-2026-000031413

Publication integrity record

Two cup vacuum gripper, two outlet manifold, common isolation valve, single stage ejector, 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-2026-000031413) never changes.

Identity and time

Publication numberOT-2026-000031413 · never reused
Internal UUID01a0ae74-87ad-746c-8242-153c87d5c0c3 · 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-2026-000031413
StatusPUBLIC

Content hashes

Canonical text9ef169736475f1e2ebfea2c66b3f1cf1eddb7d1e58e131b566c5a13fe070b64c
Markdown688db2b9cb1197bf50578c8e1e8c5f895c1ec9cec1a54322a6d13fa09e99b372
PDF
Publication page8aedca8601e1fe8411304aca33697a059aaa4624df358e7463ea9efadc0bda18
Manifestf96b80c7ad1e06f6f82b5d6eb6a515009cca10068e8fd90fd13566e549a94590

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
SignatureCRVhN0MCxkkJJF+Nq1fwJPcBc9PS3nB15GRehkyni2BG1PPAGkHVAAM5fovRrnvwaG69xYmon+88PwoA0s/GBw==
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

2026-09-17T11:36:07.743329ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031413
observed 8aedca8601e1fe8411304aca33697a05...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:07.725167ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031413/manifest.json
observed f96b80c7ad1e06f6f82b5d6eb6a51500...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:07.701710ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031413/publication.md
observed 688db2b9cb1197bf50578c8e1e8c5f89...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:07.682212ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031413/publication.txt
observed 9ef169736475f1e2ebfea2c66b3f1cf1...
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.