OpenTechnical

OT-2026-000015899

Publication integrity record

Two cup vacuum gripper, two zone face, three outlet manifold, two 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-2026-000015899) never changes.

Identity and time

Publication numberOT-2026-000015899 · never reused
Internal UUID01a0ae6e-0c4d-794c-bb75-2a613cfce528 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:14:02.846253Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000015899
StatusPUBLIC

Content hashes

Canonical text87f3d9753aadd33e8972abc0343f70b9fba198c929a0054e1cb4113773f08120
Markdown0d130ad9de74ecb38af35be36c0e00b847d46ef5f4f78848a690ce8ee50cae55
PDF
Publication pagefc89d6f2edfe3da4f6e4d8bdbbfaef891ff6cdfb70f61f09b1000c5135e8aca0
Manifest004abfeaa9f3b8fc061b7d9a67031e97ebbf5af98427202320950c50a279f6ed

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
SignatureW+omqznb7QFRMy/kQxQ8YA/Rc/R1FcfkuZFtJ60quO3JP741eK4MzKr4R1WBlsKNG5l5kWicPbphXcf9rIj/Cw==
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

2026-09-17T12:05:21.502119ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015899
observed fc89d6f2edfe3da4f6e4d8bdbbfaef89...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:05:21.483865ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015899/manifest.json
observed 004abfeaa9f3b8fc061b7d9a67031e97...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:05:21.464253ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015899/publication.md
observed 0d130ad9de74ecb38af35be36c0e00b8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:05:21.444771ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015899/publication.txt
observed 87f3d9753aadd33e8972abc0343f70b9...
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.