OpenTechnical

OT-2026-000030677

Publication integrity record

Four cup vacuum gripper, four outlet manifold, common isolation valve, pump fed, manifold pressure sensor, sustained 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-2026-000030677) never changes.

Identity and time

Publication numberOT-2026-000030677 · never reused
Internal UUID01a0ae74-3fb3-701d-9d5f-4ebf92991de6 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:20:49.275361Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000030677
StatusPUBLIC

Content hashes

Canonical texte8e8df86cd98412cff718f1d5950407691d877f8ea3fbbc1171d57df598b0e13
Markdownbc7014cae80c760c0112e9bfb5429a5b68de573144ff21c7d57378894f0acaf5
PDF
Publication pagef636944fd45b70c8fe403fe747cb563a74fc2f59b5fb154ee930952906e01c4b
Manifesta4de89c7ab11588c9cab21138d8bfb69d71f5142da4271ddb3602b4e42123d23

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
SignatureIWX9xjefy5gBoKsSQ8YPcL8OQj7tjJr8CdrK0JRvgo1GvaqKIRSpRXkyPPHZGUTKuzWiV30wNcvRgc5BCycvDg==
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

2026-09-17T11:36:34.197938ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030677
observed f636944fd45b70c8fe403fe747cb563a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:34.181097ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030677/manifest.json
observed a4de89c7ab11588c9cab21138d8bfb69...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:34.161701ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030677/publication.md
observed bc7014cae80c760c0112e9bfb5429a5b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:34.145739ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030677/publication.txt
observed e8e8df86cd98412cff718f1d59504076...
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.