OpenTechnical

OT-2026-000085221

Publication integrity record

Four cup vacuum gripper, four zone face, four outlet manifold, plant vacuum fed, 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-2026-000085221) never changes.

Identity and time

Publication numberOT-2026-000085221 · never reused
Internal UUID01a0ae99-43ba-7c4a-852d-85dd47ec268a · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:01:15.103896Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000085221
StatusPUBLIC

Content hashes

Canonical text4677dfb7af4efdd85ef1e780632c10b3c535de311884a5463fffa5ab7791a77b
Markdown5e03269d947a109ce0f1389f8fc5d625514abee79f0c45bdf1e3410bd310d6fb
PDF
Publication page26b3336096662227e87691821cb25a935d64915a0aff2966e31993b1b7e18eef
Manifest18f68d0e0631a46a8ca6c2ba77d22f6305c174a06d99991a70acefe4ae6b7592

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
Signatureq8KaASuYPExyb3lje3IdCfCwAwTp9+muCBMzkMBXdi/wtCbnv8QyTiJz0X6z9QPAcv2cr2CwIwq6xlrc0gkcAw==
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

2026-09-17T09:55:17.977278ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000085221
observed 26b3336096662227e87691821cb25a93...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:55:17.957715ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000085221/manifest.json
observed 18f68d0e0631a46a8ca6c2ba77d22f63...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:55:17.937444ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000085221/publication.md
observed 5e03269d947a109ce0f1389f8fc5d625...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:55:17.919267ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000085221/publication.txt
observed 4677dfb7af4efdd85ef1e780632c10b3...
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.