OpenTechnical

OT-2026-000064121

Publication integrity record

Single cup vacuum gripper, 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-2026-000064121) never changes.

Identity and time

Publication numberOT-2026-000064121 · never reused
Internal UUID01a0ae8d-a45f-7622-8225-bf561d1e3ce2 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:48:33.392114Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000064121
StatusPUBLIC

Content hashes

Canonical text1c18d278aefb627e3b9de3b6ead7ff15298997d7aa5e89db4eef9e09c1d63fb6
Markdown3b403484b50fa9e66d18998eb511742ad960eca31a7bf15916a4e7bf58dc2765
PDF
Publication paged58003552556b8e4b3f7b364bc3b3c04324350602c9bfc025a764266a2ed69f2
Manifest021be3b42b40a98db09fd8c3bb90d2c95b90352bcdaea71fa12b4062acc73e8c

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
SignatureV7rZt0xj7Rs5LiIDQYOLOqmRlZY+CJZuGZ5BmCK/q6dvGaDDOLOjDrOx3TXgyePCA8NgVj+TD3QLuvabyFVWCQ==
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

2026-09-17T10:36:07.113514ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000064121
observed d58003552556b8e4b3f7b364bc3b3c04...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:36:07.095854ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000064121/manifest.json
observed 021be3b42b40a98db09fd8c3bb90d2c9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:36:07.078029ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000064121/publication.md
observed 3b403484b50fa9e66d18998eb511742a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:36:07.057344ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000064121/publication.txt
observed 1c18d278aefb627e3b9de3b6ead7ff15...
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.