OpenTechnical

OT-2026-000090301

Publication integrity record

Two bellows cup vacuum gripper, two zone face, plant vacuum 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-2026-000090301) never changes.

Identity and time

Publication numberOT-2026-000090301 · never reused
Internal UUID01a0ae9c-4290-786b-94ae-2271f8eb0551 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:31.390046Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090301
StatusPUBLIC

Content hashes

Canonical text8d311ff774c1bdcdd67f66d4f56e2812b2169e216c7ac0fd90f387aa592eacd6
Markdown1fe7166a5034c24651515f0be7ac10308054af2cd8a9e612cb93c5ef91dd982b
PDF
Publication page23a15a92806edf07d8bb19c3aefb78e1375929f4583ab331f27500a8e8fda024
Manifest3c1603c4c0fc65c57653823212e527847ea2e9a6b0ced74d851206fc4e02db6e

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
Signaturemk3ol9t+ZdkyvfJAnQsLd2JJ3djLT3EupsCMtqoRznsPufQYBR+LKdDpTKOM5ADsgfHR3LePvFMbkpv1YZwLCw==
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

2026-09-17T09:46:23.328761ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090301
observed 23a15a92806edf07d8bb19c3aefb78e1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:23.312059ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090301/manifest.json
observed 3c1603c4c0fc65c57653823212e52784...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:23.293508ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090301/publication.md
observed 1fe7166a5034c24651515f0be7ac1030...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:23.275291ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090301/publication.txt
observed 8d311ff774c1bdcdd67f66d4f56e2812...
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.