OpenTechnical

OT-2026-000049041

Publication integrity record

Three cup vacuum gripper, three outlet manifold, common isolation valve, pump fed, supply line pressure sensor, sustained 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-2026-000049041) never changes.

Identity and time

Publication numberOT-2026-000049041 · never reused
Internal UUID01a0ae81-134d-70e9-947e-37a2822fc6a6 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:34:49.967260Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000049041
StatusPUBLIC

Content hashes

Canonical textc8d20e5bb91de6b2224e6424aa320b9a7cf8b14ca60116717c02575dc03cdb56
Markdown3872a68da3c7e884560399a1b797a71718a234aa418f1e734ee04a17809ffa8a
PDF
Publication pageda2dd9fe09bb7780e78412fc0cb62f45649716acb0984f798198f54494e69e56
Manifest9c891d4e5528223302d99c9b5a9bae9da6def8b6bb56d12c6105c1bd3d2149a9

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
Signature+3uXu13dBQwvBFjQdCUL8FNBtI526D1SSlwCVYVYNa6WWPOcCYV7P6EJtTIQ3hP6h0MyL7bMFNzuNZdnzMfKCg==
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

2026-09-17T11:03:15.890385ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049041
observed da2dd9fe09bb7780e78412fc0cb62f45...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:03:15.873680ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049041/manifest.json
observed 9c891d4e5528223302d99c9b5a9bae9d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:03:15.855154ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049041/publication.md
observed 3872a68da3c7e884560399a1b797a717...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:03:15.835197ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049041/publication.txt
observed c8d20e5bb91de6b2224e6424aa320b9a...
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.