OpenTechnical

OT-2026-000091025

Publication integrity record

Three cup vacuum gripper, three zone face, common isolation valve, three stage ejector, pressure sensor per zone, sustained blow-off before 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-2026-000091025) never changes.

Identity and time

Publication numberOT-2026-000091025 · never reused
Internal UUID01a0ae9c-c012-7ba7-9727-57c201fe640b · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:03.518217Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000091025
StatusPUBLIC

Content hashes

Canonical text2bbb0975d6e0da53e6f60618083608ebc773d8d4c82cffbe3d36e557cedb2952
Markdown3b05f753d989548169d55b2abe07eaa8d3515a3922ec94567422518eaccfc040
PDF
Publication page3c25a50b641a2b1a75131f7511dcb865ba025dd3a8b77119d4b3ccbe4ae205df
Manifest2d4f212292b8fb56a58606056676a7a222447a9388faf4c1bf76fa9fedd8941c

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
SignatureA549maKnt7sJfYErXcmyBiE6Ws4MdeiL/gQmGRfwqKZAw0ZI4LMbD0AK+8X05X9T3NiVwKfB8l7f9zQWOaNZCw==
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

2026-09-17T09:44:16.013582ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091025
observed 3c25a50b641a2b1a75131f7511dcb865...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:15.995326ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091025/manifest.json
observed 2d4f212292b8fb56a58606056676a7a2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:15.974834ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091025/publication.md
observed 3b05f753d989548169d55b2abe07eaa8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:15.955613ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091025/publication.txt
observed 2bbb0975d6e0da53e6f60618083608eb...
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.