OpenTechnical

OT-2026-000007621

Publication integrity record

Two bellows cup vacuum gripper, two outlet manifold, common isolation valve, plant vacuum fed, sustained 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-2026-000007621) never changes.

Identity and time

Publication numberOT-2026-000007621 · never reused
Internal UUID01a0ae62-76bc-7294-9b6f-ecb7882e30bc · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:01:23.688458Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000007621
StatusPUBLIC

Content hashes

Canonical text6ffd4de9398e2b335970407a2e37c21cc3d37e6f53f52a19dd36598b6a5533ea
Markdowndd93bd797be7b5bb09f929b1c17a1271115b43996c08bdfbb6c98c2d73b39671
PDF
Publication pageb5a416cc467166d64d90bc7c1df7140764c7461b354623215dc47355ac0db47d
Manifestb2136a5ca8a343773191cd6aeaf012148b55c25c267f9bac7845db07ca27e8cf

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
SignatureFf1VnommVcA5aEz4T+JD/NxN+ez8Lu3xEacjW4YZWQi5g7wYFkTxFGhvkp/qJHXOnZKykZ71XWVb/dSKXeyiCw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:07:02Z
batch OT-TS-2026-W38-016 · RFC 3161 token · inclusion proof
root 8d90bf9341d96baa4328c218b6f85281...

Independent retrieval

2026-09-17T08:10:14.201564ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007621
observed b5a416cc467166d64d90bc7c1df71407...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:10:14.185224ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007621/manifest.json
observed b2136a5ca8a343773191cd6aeaf01214...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:10:14.167450ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007621/publication.md
observed dd93bd797be7b5bb09f929b1c17a1271...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:10:14.148785ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007621/publication.txt
observed 6ffd4de9398e2b335970407a2e37c21c...
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.