OpenTechnical

OT-2026-000090462

Publication integrity record

Four bellows cup vacuum gripper, four zone face, 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-2026-000090462) never changes.

Identity and time

Publication numberOT-2026-000090462 · never reused
Internal UUID01a0ae9c-7f2e-7f23-ac3f-0c1f4cb326e5 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:46.997728Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090462
StatusPUBLIC

Content hashes

Canonical textb3f2c4772a73272d85bd945d2d091c71a2a9caea884a8523c5b98069009a0343
Markdown0b2adea17ac98e69196f3b1f1f530f93db434e0c12379ebc392c0c139e96e19c
PDF
Publication page74cc44fb051080fd6791566d0069f669006fd7ff4a63c2dcd5136a54d654d294
Manifestdeb1a8f150699f0595b91ac00ca39392eced12b3c9ddbd592bc66dfd2ea6320b

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
SignatureaRAh0utnXw0hD51Zhs/1kNgIltXwpI5tavP4haBX8ZoUvTeEh2TZTYlG5yCwXGJRhach451PPtGWKz8b/3QDDg==
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

2026-09-17T09:44:35.224376ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090462
observed 74cc44fb051080fd6791566d0069f669...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:35.206981ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090462/manifest.json
observed deb1a8f150699f0595b91ac00ca39392...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:35.188848ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090462/publication.md
observed 0b2adea17ac98e69196f3b1f1f530f93...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:35.170690ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090462/publication.txt
observed b3f2c4772a73272d85bd945d2d091c71...
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.