OpenTechnical

OT-2026-000071807

Publication integrity record

Four bellows cup vacuum gripper, four zone face, common isolation valve, pump fed, supply line pressure sensor, pulsed blow-off before set-down

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-2026-000071807) never changes.

Identity and time

Publication numberOT-2026-000071807 · never reused
Internal UUID01a0ae92-1e92-7e79-a090-f47ba7b44011 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:26.841552Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000071807
StatusPUBLIC

Content hashes

Canonical text5c2f09f207311b174abd1898a245b5be1ab128865f71b31d9ab7a8e614c22428
Markdown9026888c416d4505f1e552913c3ddb60b7f5b8d3b4d285690222d597a335f027
PDF
Publication page6594eeca6b609115785849193c64205787a30f1cfd590a0f9e698b6fc730f7c8
Manifest08859f53e77749f15002ee7008535d0c0da583c603bfba0b04d650136f202576

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
Signature7bZEJbc4cnbkma+w5JKIpcP3k3wijxrz7z6HgVrybHYs/K0hMxPMTkHu77li+zCrBi6eLhz2xUw0yfpylQx8BQ==
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

2026-09-17T10:23:58.809296ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071807
observed 6594eeca6b609115785849193c642057...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:58.790079ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071807/manifest.json
observed 08859f53e77749f15002ee7008535d0c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:58.773248ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071807/publication.md
observed 9026888c416d4505f1e552913c3ddb60...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:58.756818ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071807/publication.txt
observed 5c2f09f207311b174abd1898a245b5be...
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.