OpenTechnical

OT-2026-000074350

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, plant vacuum fed, supply line pressure sensor, vented 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-2026-000074350) never changes.

Identity and time

Publication numberOT-2026-000074350 · never reused
Internal UUID01a0ae93-7179-7d1f-aeee-3f2ee646d381 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:53.574555Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000074350
StatusPUBLIC

Content hashes

Canonical textd2b27b05099b45f95b9aecca5bb47f56b2edce5fc18982bf31fb930f7a2972f3
Markdown3eb145ae0f1ace9e570438b374fecd7b3f7070bb527549656a319fe6d66a0769
PDF
Publication page6e472cf16ef11f53e0f9709076d1a74a844b17fe9c2bb60511a66ff2cdafb7d1
Manifest2278f6fb356ba6552de824162802013d73b14ef5f17a76dcf830ecacc93668d1

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
SignaturedeBzPmUStZgN9m4x+B1KFugrd9mcjxoZEHklPSDwoaTeC0t7CagoMJGwFVTsR2vApKv23IFu73zOJ/08gDRYCg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T10:19:16.470430ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074350
observed 6e472cf16ef11f53e0f9709076d1a74a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:16.451990ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074350/manifest.json
observed 2278f6fb356ba6552de824162802013d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:16.433697ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074350/publication.md
observed 3eb145ae0f1ace9e570438b374fecd7b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:16.415510ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074350/publication.txt
observed d2b27b05099b45f95b9aecca5bb47f56...
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.