OpenTechnical

OT-2026-000072486

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, plant vacuum fed, supply line pressure sensor, vented before set-down, on a tool changer

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-2026-000072486) never changes.

Identity and time

Publication numberOT-2026-000072486 · never reused
Internal UUID01a0ae92-89d8-7135-90e6-45f7b269f271 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:54.283203Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000072486
StatusPUBLIC

Content hashes

Canonical text62d3d09a9828cd2f9d674f490ea992878b16ec5aea89c35f88ecc18fe21cbed5
Markdown53a28ba45b66b910b6abdae93425688bff58a7e7d4687617efd0e2c3d40e46d0
PDF
Publication pagea43e5aa9f9abd32c6a9306b905e504d682c0b7b0b4ef5b5dd73ed9fc1e62a361
Manifest1abd2333b71290bb441c614c6a24babbbfe5c82621ae33b5a5000d56e075a541

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
SignatureUyn8sFudAeZ9aUgCq9kvKFuOEuohJz1Z0LXyWurd2fdENIEQhOa2wHmWbgamyG3x9pPMKTD4/c/3RNT4Rp2qDw==
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

2026-09-17T10:22:18.783267ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072486
observed a43e5aa9f9abd32c6a9306b905e504d6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:18.764181ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072486/manifest.json
observed 1abd2333b71290bb441c614c6a24babb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:18.747686ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072486/publication.md
observed 53a28ba45b66b910b6abdae93425688b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:18.729586ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072486/publication.txt
observed 62d3d09a9828cd2f9d674f490ea99287...
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.