OpenTechnical

OT-2026-000042341

Publication integrity record

Two cup vacuum gripper, two outlet manifold, common isolation valve, plant vacuum fed, sustained blow-off after 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-2026-000042341) never changes.

Identity and time

Publication numberOT-2026-000042341 · never reused
Internal UUID01a0ae7a-5d74-79b0-9e85-4021c1c0447a · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:27:30.052779Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000042341
StatusPUBLIC

Content hashes

Canonical text44cc988e32c80e3742a8fdb2356e371f1ccc590d6cac9d7883b42e625213dc49
Markdown2d3a622ad89803d866d28e4cd9db19b49e97dce2056f8c5e947de18d3af8e094
PDF
Publication page115faf88e02b93f18eb6e480efcfdb4afefda181d53e7aed102dd7eb361ff4ae
Manifest155db5e0a8331eb912bab63a9405e431ddc3af5cbf5fd722653d096ddf4fb567

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
SignaturePT+PJ4KpNV4GE3NNJitlKtetApcMhQjrPDMHiWlrcibMaQyjGU7UR6Vp9IXGdGMwvkgXLD7raNJQzVZC8Zy+Dg==
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

2026-09-17T11:16:02.958660ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042341
observed 115faf88e02b93f18eb6e480efcfdb4a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:16:02.941813ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042341/manifest.json
observed 155db5e0a8331eb912bab63a9405e431...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:16:02.923468ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042341/publication.md
observed 2d3a622ad89803d866d28e4cd9db19b4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:16:02.905989ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042341/publication.txt
observed 44cc988e32c80e3742a8fdb2356e371f...
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.