OpenTechnical

OT-2026-000077491

Publication integrity record

Four bellows cup vacuum gripper, four zone face, common isolation valve, pump fed, pressure sensor per zone, 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-2026-000077491) never changes.

Identity and time

Publication numberOT-2026-000077491 · never reused
Internal UUID01a0ae94-f50a-746a-bb06-6a52db1e2652 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:56:32.796581Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000077491
StatusPUBLIC

Content hashes

Canonical text53415bda108fbf17fef3ad19c0edcb3d5d51e1c4033f7d890fa662aee17f939a
Markdowne539d9a241a383e23493199054b085c56e66bf4ba3d5717590ec0b7d2ea3969b
PDF
Publication pageba09db07e6a24f2168f3c7687cbb5b5df44562d5664ffd6013bdf0fe91a4f1b8
Manifeste613be093a036b5c2cd26b60dcc6c7ddd632cda6463592b6d5aed51bfe6d3fc2

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
SignatureDGGAnabjtg1bkhrkIgNumsrW3DOwb0Q6sPLbEXnU9vicWeiHZtv4jScc/DTUVg4QqeqOT6PizOWMjLbS1+Y1BQ==
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

2026-09-17T10:09:10.776121ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077491
observed ba09db07e6a24f2168f3c7687cbb5b5d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:10.755408ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077491/manifest.json
observed e613be093a036b5c2cd26b60dcc6c7dd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:10.737122ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077491/publication.md
observed e539d9a241a383e23493199054b085c5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:10.715830ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077491/publication.txt
observed 53415bda108fbf17fef3ad19c0edcb3d...
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.