OpenTechnical

OT-2026-000029899

Publication integrity record

Four cup vacuum gripper, four zone face, common isolation valve, plant vacuum fed, pulsed blow-off before set-down

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-2026-000029899) never changes.

Identity and time

Publication numberOT-2026-000029899 · never reused
Internal UUID01a0ae73-ac48-7fec-baa2-d2e1059b8a6c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:20:11.501096Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000029899
StatusPUBLIC

Content hashes

Canonical textde0e04188e7249a4c641b99eb58fec4cec57687ee1066d93f222f77bd5365025
Markdown30b86010a6b38d9093d7ee0e7a18e9f8aa2449a8ff332526f8caa3dd04ba025c
PDF
Publication page0f8500becc71ede920be9859c5d51370e5834cbb1e1d2ceed0d0a417a776498e
Manifest5aea4c12722092cd00016ef6cf7d9821b1c60bbaa7421547fe2406f13abc0f2b

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
SignaturemQRA0i8hC8uS3/PWK17Q1k1rPK2TFZVxpv7+eyps/bdRmjt3dM026o4hBhV05HWYKWCzEUqatDc4VLfZHRceDg==
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

2026-09-17T11:38:35.997546ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029899
observed 0f8500becc71ede920be9859c5d51370...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:35.981960ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029899/manifest.json
observed 5aea4c12722092cd00016ef6cf7d9821...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:35.966275ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029899/publication.md
observed 30b86010a6b38d9093d7ee0e7a18e9f8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:35.950918ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029899/publication.txt
observed de0e04188e7249a4c641b99eb58fec4c...
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.