OpenTechnical

OT-2026-000031737

Publication integrity record

Six cup vacuum gripper, six outlet manifold, common isolation valve, pump fed, pulsed blow-off after 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-2026-000031737) never changes.

Identity and time

Publication numberOT-2026-000031737 · never reused
Internal UUID01a0ae74-bad0-7217-a6ce-fe93eeffdbfc · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:21:20.739935Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000031737
StatusPUBLIC

Content hashes

Canonical textc1dd101d65997c26653fad9db4c26f9ec7307288cef179fd669a1779e5fa4930
Markdownacd0b26897200bfaa33810cdd5f6c0affeef386c8bfe3e616b559fa5fadf5d9f
PDF
Publication page89e9c1bc25c47b0cce685c36de03900cf177b58695fe09f8f4e553d84b9a057c
Manifest95b60d1371547d94b988b7014079b289da2f89afbb8fc59dba07202b7b60fd9f

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
SignaturejbcWpZzQFJgQTDXPRq4Kagh1KVaOUtLihosAzWLyK/nJ7eT3dW+KiawM5fyPyFxjxhynArATxzs34r7vvy5jBQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:34:51.152606ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031737
observed 89e9c1bc25c47b0cce685c36de03900c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:34:51.134529ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031737/manifest.json
observed 95b60d1371547d94b988b7014079b289...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:34:51.117134ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031737/publication.md
observed acd0b26897200bfaa33810cdd5f6c0af...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:34:51.101289ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031737/publication.txt
observed c1dd101d65997c26653fad9db4c26f9e...
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.