OpenTechnical

OT-2026-000068621

Publication integrity record

Three bellows cup vacuum gripper, three outlet manifold, common isolation valve, plant vacuum fed, supply line pressure sensor, sustained blow-off 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-2026-000068621) never changes.

Identity and time

Publication numberOT-2026-000068621 · never reused
Internal UUID01a0ae90-2482-70dc-a4ce-2df21900fa67 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:51:17.262143Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000068621
StatusPUBLIC

Content hashes

Canonical text05578ee85c84e5d2531251aee0a5cd8ff7853c637573928a7231c4ab4d1972e7
Markdowna59587b46c3ac920c84d1ca4f580a4b5cb8a64f64919fefdde790a887a962857
PDF
Publication pagede99c4f9168211e98994811c1976faecb164c0154c7f2ee7ce22e9137d03a57e
Manifest8a802911c3b6a1b7eb310aac548083e3de22f420c8d009ee1c2c51418b059e57

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
SignatureqPtVAFTB9B8NU6Zdso2S/hCv+ny6VdJAdqjUczJKO0A2J35OIfhnk8fteG8xACw7qDB+dzJnig/3AlNNDZiwAw==
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

2026-09-17T10:29:48.402468ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000068621
observed de99c4f9168211e98994811c1976faec...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:29:48.384849ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000068621/manifest.json
observed 8a802911c3b6a1b7eb310aac548083e3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:29:48.368021ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000068621/publication.md
observed a59587b46c3ac920c84d1ca4f580a4b5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:29:48.352160ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000068621/publication.txt
observed 05578ee85c84e5d2531251aee0a5cd8f...
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.