OpenTechnical

OT-2026-000063833

Publication integrity record

Four cup vacuum gripper, four outlet manifold, common isolation valve, pump fed, manifold pressure sensor, vented 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-2026-000063833) never changes.

Identity and time

Publication numberOT-2026-000063833 · never reused
Internal UUID01a0ae8d-53b7-7acf-bec6-529c1a774d35 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:48:12.763906Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000063833
StatusPUBLIC

Content hashes

Canonical textce71304d9377f803ec74c6cc625a9ab0daf82e3c44e2edcba0ebf8e9cd36907b
Markdownfbc000c86392c82c3712c58ae4b28b07634eaac016602a2c49e12f3149522e8c
PDF
Publication page34e4db1304a0d8f0a2a4d39f01faf9262ed3afb7f72429294495056819b294c2
Manifest7bd936dbc5853678b02c3d7829181ae0adaa438352109f267b7a3c490bc6d2f0

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
Signature8GF/M7w3THUK8EdCz1Cc9dMMVXrBPIndGa33/3KqHuEyaHqVyU8lYpVfXKIKoY6kfLe5CE31C8DdbOy9TobJAg==
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

2026-09-17T10:36:51.482335ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000063833
observed 34e4db1304a0d8f0a2a4d39f01faf926...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:36:51.463824ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000063833/manifest.json
observed 7bd936dbc5853678b02c3d7829181ae0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:36:51.446272ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000063833/publication.md
observed fbc000c86392c82c3712c58ae4b28b07...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:36:51.428148ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000063833/publication.txt
observed ce71304d9377f803ec74c6cc625a9ab0...
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.