OpenTechnical

OT-2026-000043573

Publication integrity record

Three cup vacuum gripper, three 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-2026-000043573) never changes.

Identity and time

Publication numberOT-2026-000043573 · never reused
Internal UUID01a0ae7b-92cf-7282-b0ac-1416214dea27 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:28:49.254972Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000043573
StatusPUBLIC

Content hashes

Canonical text1ff0e28006511e7361b12b17f601b670f856eab2bc359caaf3a3a54031f47488
Markdown7138e3c5bf21a77edc80c8e89c1115672a97d42f11674cf150dc0a1378eeb3fe
PDF
Publication page7db651ee3db023bd6dba148098a224d7827d53593845dbdc6383dd2b0c687eb4
Manifest7cc6e8061f7cfcaae3e2f2c09c3842f8b3c1e86b569130def70c8cd618b2d015

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
Signature8X4y5IgxYeA+kiOblyNZTsQY29jc1Ftxc80tCN6d+VOggI2t/EmGIel/+eD/l0YURTAam/M3mmMa9BBZAk4qAQ==
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

2026-09-17T11:12:58.179633ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043573
observed 7db651ee3db023bd6dba148098a224d7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:12:58.160716ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043573/manifest.json
observed 7cc6e8061f7cfcaae3e2f2c09c3842f8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:12:58.143155ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043573/publication.md
observed 7138e3c5bf21a77edc80c8e89c111567...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:12:58.124226ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043573/publication.txt
observed 1ff0e28006511e7361b12b17f601b670...
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.