OpenTechnical

OT-2026-000063281

Publication integrity record

Six cup vacuum gripper, six outlet manifold, common isolation valve, pump fed, supply line 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-2026-000063281) never changes.

Identity and time

Publication numberOT-2026-000063281 · never reused
Internal UUID01a0ae8c-94ab-7fd2-89c5-47d5457afa96 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:47:23.840289Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000063281
StatusPUBLIC

Content hashes

Canonical textafa706a0b1bf4f0115b90d874d9419ac6ccb60f6129346cf2b45d4c9a9f18117
Markdown5447fba40ac15ea56652a838c9f3b9a9667a95dc91d338c2f61075c95991b089
PDF
Publication page51e7b142b02ce5bbe713d6f577c2b8b3538da5b7cbd78755db1e662d91bc8fc7
Manifestc09cc2e94f937b59ea4fbb2b25d535342df9327798c0d521f9bd0503d32f7477

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
SignatureaI4d8rxx1F058wq33QftcsonFa9JPu+UpoAqH+i9GFWO00a7qyjRJnMTHahub+4X+k0fuqXLbh65eZv9GMyUBQ==
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

2026-09-17T10:39:10.407779ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000063281
observed 51e7b142b02ce5bbe713d6f577c2b8b3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:39:10.391881ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000063281/manifest.json
observed c09cc2e94f937b59ea4fbb2b25d53534...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:39:10.374521ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000063281/publication.md
observed 5447fba40ac15ea56652a838c9f3b9a9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:39:10.357135ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000063281/publication.txt
observed afa706a0b1bf4f0115b90d874d9419ac...
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.