OpenTechnical

OT-2026-000062749

Publication integrity record

Six cup vacuum gripper, six outlet manifold, 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-2026-000062749) never changes.

Identity and time

Publication numberOT-2026-000062749 · never reused
Internal UUID01a0ae8c-6389-7908-a800-46650ab4d75f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:47:11.271900Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000062749
StatusPUBLIC

Content hashes

Canonical text437e4b5c2e7332f8a634f848ec544a35b0f0ce49423fce0c0f93dc1d22a42a05
Markdown4522bc620c7e07545bc77d8edd68cedcbb841ae384c20e6a5b037c4b88f8c2df
PDF
Publication page2a994144a7246248fd6cf4abe60d5b4a9f71faf3aff10eb2639c43cddeea6dbe
Manifest4d24faf0a8f5ae29156efbb78bae8fa957e86f937a91391596eeb675c6728fe7

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
Signature4atCLhay3wTkBSB11IE+r55TzWf4by/ptItx5yHteIR2epZLjCwv4ActsNB0BcmzucZtJOiICROngqnTL6zcDw==
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

2026-09-17T10:39:19.728760ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000062749
observed 2a994144a7246248fd6cf4abe60d5b4a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:39:19.700627ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000062749/manifest.json
observed 4d24faf0a8f5ae29156efbb78bae8fa9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:39:19.683234ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000062749/publication.md
observed 4522bc620c7e07545bc77d8edd68cedc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:39:19.663667ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000062749/publication.txt
observed 437e4b5c2e7332f8a634f848ec544a35...
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.