OpenTechnical

OT-2026-000084489

Publication integrity record

Three cup vacuum gripper, three zone face, common isolation valve, plant vacuum fed, 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-2026-000084489) never changes.

Identity and time

Publication numberOT-2026-000084489 · never reused
Internal UUID01a0ae98-5b63-77da-98e1-5c833423dda1 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:00:15.619216Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000084489
StatusPUBLIC

Content hashes

Canonical textcea7aba08f743494672584bde07ccee3fc7b59ff86a3ff8b37661eca060a45bf
Markdown803dcaadcd304254db43499730e695423fea3c3968209e8cef184eff4cc56526
PDF
Publication page2eb5b37a04b7b081ae3dc54ed3db7ac928b228a590b0bf6211c4a60f61557a3c
Manifestbbfae25891f486758907d4c549903654140d5e268512ff9453fa185387f53e29

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
SignatureOTbHJmtRyJVkwOEyOKRLZkH0K2TcagoYGc0EWH9CuOyhdqRwKo+v4lLJov1ZxZI8lmH8s4AgFTJJekwxpdJACQ==
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

2026-09-17T09:56:27.487024ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000084489
observed 2eb5b37a04b7b081ae3dc54ed3db7ac9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:56:27.471539ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000084489/manifest.json
observed bbfae25891f486758907d4c549903654...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:56:27.454664ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000084489/publication.md
observed 803dcaadcd304254db43499730e69542...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:56:27.437194ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000084489/publication.txt
observed cea7aba08f743494672584bde07ccee3...
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.