OpenTechnical

OT-2026-000011903

Publication integrity record

Two bellows cup vacuum gripper, two zone face, plant vacuum fed, pulsed 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-2026-000011903) never changes.

Identity and time

Publication numberOT-2026-000011903 · never reused
Internal UUID01a0ae6d-1942-7fd9-a268-1a4546b1aa64 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:00.631271Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000011903
StatusPUBLIC

Content hashes

Canonical text3112dfb6b1395f545aee9d646f4bc36aad3bdc94696510480c065cf448570800
Markdown799e20e69f7a363a0d8a20d9151769f97aa0f05bfeab67a92c508ccda7040caa
PDF
Publication page8252812dc2b0d8babd10a1a0a193c6f32671b3ea70582e9f290ab755c7d59a0c
Manifest87e85dcdfa64cca0823ed8e67ece28083ff0fdf9fcf8fd7a9b1c7c7dea6f44ac

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
SignaturewD4xxXRVuQOSbbLT/JHSqOxueW0dLSOoopvD6Y3KVSLFYbIoginrSMakyv5PKKqyiV/4VT6IwiGhljZc2T8iDw==
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

2026-09-17T12:12:39.770692ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000011903
observed 8252812dc2b0d8babd10a1a0a193c6f3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:12:39.751624ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000011903/manifest.json
observed 87e85dcdfa64cca0823ed8e67ece2808...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:12:39.730990ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000011903/publication.md
observed 799e20e69f7a363a0d8a20d9151769f9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:12:39.711732ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000011903/publication.txt
observed 3112dfb6b1395f545aee9d646f4bc36a...
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.