OpenTechnical

OT-2026-000018917

Publication integrity record

Two cup vacuum gripper, two outlet manifold, common isolation valve, plant vacuum fed, manifold pressure sensor, 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-2026-000018917) never changes.

Identity and time

Publication numberOT-2026-000018917 · never reused
Internal UUID01a0ae6e-d522-7b54-93c5-a077f0d7c49c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:14:54.261386Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000018917
StatusPUBLIC

Content hashes

Canonical text04173068b8adb0e661b880b6db33c3beb73cd041ed530d78f0cd230f8c93794b
Markdownf21c0c767be48514f14d55736d2c688bf5324018172cd91f2ea9ad8c63e80be1
PDF
Publication pagef723dd1ae3de87ab0c59c1ad82115b6615b68b627fba8d78f189166811f84925
Manifest461dfaa8ad85f5997fedc895daa7200bb62cdb10a681136e573d5e74cf645ff2

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
SignatureECFcaHvndGibD49Juk3hK/JAfcZ/zQlEMsjav1HfC0FG0Kzy7+UuSyrqtQiSWr52NQISDv2pQ+dhrLt5+5NoAw==
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

2026-09-17T11:59:34.624709ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018917
observed f723dd1ae3de87ab0c59c1ad82115b66...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:59:34.606077ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018917/manifest.json
observed 461dfaa8ad85f5997fedc895daa7200b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:59:34.586944ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018917/publication.md
observed f21c0c767be48514f14d55736d2c688b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:59:34.568231ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018917/publication.txt
observed 04173068b8adb0e661b880b6db33c3be...
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.