OpenTechnical

OT-2026-000017531

Publication integrity record

Foam pad vacuum gripper, four zone face, four outlet manifold, single stage ejector, 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-2026-000017531) never changes.

Identity and time

Publication numberOT-2026-000017531 · never reused
Internal UUID01a0ae6e-76ca-71b3-9319-4ae2f2a32e3e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:14:30.105855Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000017531
StatusPUBLIC

Content hashes

Canonical textaf030cbf4b9291cae7d3444ca4ff7b0159b6c1ef2c8af5d9fb76fd99b0044ec9
Markdown1d32d707356460797fa0cde456250486ee9386828e880fa2ad021ce803644422
PDF
Publication page8880bbb7d3d56eb0d5f79e283b0cd0b18f616a497f4c37cb49dd843f79db6764
Manifestca729656f35d4d8901e5232da0fe9d1b4e507487d9484deb83275225356fd4cb

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
SignatureYY1t8J2rJdI6ciFJhm1H3qzcfC5RC7WLry2KSfuLCJgJON0Sn6eAHe4Stu8D41ndz7jmn1ABOXNU+duNQUXJAg==
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

2026-09-17T12:02:41.509329ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000017531
observed 8880bbb7d3d56eb0d5f79e283b0cd0b1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:02:41.492018ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000017531/manifest.json
observed ca729656f35d4d8901e5232da0fe9d1b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:02:41.474755ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000017531/publication.md
observed 1d32d707356460797fa0cde456250486...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:02:41.456791ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000017531/publication.txt
observed af030cbf4b9291cae7d3444ca4ff7b01...
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.