OpenTechnical

OT-2026-000074499

Publication integrity record

Foam pad vacuum gripper, two zone face, four outlet manifold, plant vacuum fed, manifold pressure sensor, 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-2026-000074499) never changes.

Identity and time

Publication numberOT-2026-000074499 · never reused
Internal UUID01a0ae93-717a-7d72-840e-6feb1db090ae · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:53.574555Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000074499
StatusPUBLIC

Content hashes

Canonical textd6e591ced4fd3789f72791022d5e1fda4ec2c70ee0b2689b15e1b9ddff8b3abb
Markdown6d743f8d88b829f0bcfa31d5f1207b722000c54ffed3674cf5234e70c7ee29fe
PDF
Publication page6dd2846cb224f72f7c3996d41c441749ac2b25da2438e64249b4756ecc6dad7f
Manifest3fbfad349ad484f36d26f8de4f5decc3569f21f8d877d0fc6d9b2c799d83e9b6

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
SignatureZh/46OTqVMXxrMvGO/9fYYulLy0Lipj9S0liq1GkfGtWXbaKiFW3ytASET0t54lvDdQVMK7+H9QphQ3x0qQKDg==
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

2026-09-17T10:19:28.195073ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074499
observed 6dd2846cb224f72f7c3996d41c441749...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:28.177496ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074499/manifest.json
observed 3fbfad349ad484f36d26f8de4f5decc3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:28.158247ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074499/publication.md
observed 6d743f8d88b829f0bcfa31d5f1207b72...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:28.138994ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074499/publication.txt
observed d6e591ced4fd3789f72791022d5e1fda...
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.