OpenTechnical

OT-2026-000100457

Publication integrity record

Foam pad vacuum gripper, three zone face, common isolation valve, pump fed, pressure sensor per zone, sustained blow-off 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-2026-000100457) never changes.

Identity and time

Publication numberOT-2026-000100457 · never reused
Internal UUID01a0aea3-66ef-7ccc-abe4-55b4370855e6 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:12:19.463543Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000100457
StatusPUBLIC

Content hashes

Canonical text59c82a226476598b35a59d28a7121f2e25c9e831b59f6be9150b2d5138b39da4
Markdown019c6c489bc30e0aa9379739994d00f131720cf0c058060a456cce5f41cc2ecf
PDF
Publication pagecefa5704ca43f5fb9f4d9529431c28bdb032c0b475686ea05eaf4bf16e87a182
Manifestd9301123576972e6955d6ddcdf9dae41a1dbb513e4039d9caeec2b76507540e6

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
Signaturey7Dxoc4p8NEjLdB6oZgyKXh648BhF06AlhrMjEu4uzATbtevHWq9w1tIZp49q2a7hMeItr736SUjbjhv67IFCw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:27:04Z
batch OT-TS-2026-W38-023 · RFC 3161 token · inclusion proof
root 095d30148a2ef87d42d7818ebe7543f9...

Independent retrieval

2026-09-17T09:27:12.338287ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000100457
observed cefa5704ca43f5fb9f4d9529431c28bd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:27:12.320184ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000100457/manifest.json
observed d9301123576972e6955d6ddcdf9dae41...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:27:12.298421ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000100457/publication.md
observed 019c6c489bc30e0aa9379739994d00f1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:27:12.280251ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000100457/publication.txt
observed 59c82a226476598b35a59d28a7121f2e...
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.