OpenTechnical

OT-2026-000043612

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, plant vacuum fed, pulsed blow-off after 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-2026-000043612) never changes.

Identity and time

Publication numberOT-2026-000043612 · never reused
Internal UUID01a0ae7b-92d0-762f-a9fe-775c055cd133 · 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-2026-000043612
StatusPUBLIC

Content hashes

Canonical texte3f12061aa6ca49bbc888f86765c15deabad72418d4c3ddc8fe2e805cf650c2b
Markdown5dc38c020740dd56619b8c902cf9eee3a0f2f4ef95693e78a0bc17969db352fe
PDF
Publication pageb4b4a1527674fa0a2dc24f5b9085cabd6c0bf673cfcbe4219c0e8d58c629d7c7
Manifestfc2a78ad8592e26c268dafb63f488d1bfa30586a99fed31a78abc059795d6d1c

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
SignaturedXgdMrNkAOsJkwtd0c+Rn19wKLW/rUhJTOKyVffpNPw1eWpCiypmtvqKvSYPk+3DP+pwgwNCgag8wp8LOMsyAg==
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

2026-09-17T11:13:04.595196ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043612
observed b4b4a1527674fa0a2dc24f5b9085cabd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:04.574492ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043612/manifest.json
observed fc2a78ad8592e26c268dafb63f488d1b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:04.547875ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043612/publication.md
observed 5dc38c020740dd56619b8c902cf9eee3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:04.527015ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043612/publication.txt
observed e3f12061aa6ca49bbc888f86765c15de...
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.