OpenTechnical

OT-2026-000006530

Publication integrity record

Vacuum cup gripper, plant vacuum fed, pressure verified at each zone, contact triggered, rubber cups

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-2026-000006530) never changes.

Identity and time

Publication numberOT-2026-000006530 · never reused
Internal UUID01a0a95e-6cef-7066-b32d-353772133bac · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:38:52.914963Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000006530
StatusPUBLIC

Content hashes

Canonical textdab5b229b5e348b6c05c9d0a3fade2cf804e8d1c3de49eb9281efb9066e66194
Markdown0e1acb0ddbb32a83d355ed7c9de0bca8f931d9e6821ec365da5e58d6e0b98e0a
PDF
Publication page3f74462a1acc46b9bcc2067eab27911865a15dd2b6b538d4080d84ddc46c25b8
Manifest0045a0bdc76e3fa4b346a688712c0688c265b8c00bd2c056b3ae39325606edb3

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
SignatureJKA5jhPcoDuFUIgQJrHy2mcNtY/jgjlO+YCiAd06a1jvhsta/bvfE/xwIVtKoXwVaN3WEp5hiDIUMYFNIYBGDg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:47:03Z
batch OT-TS-2026-W38-013 · RFC 3161 token · inclusion proof
root e368e9c5ab06dc5cb1b0682dd54c11f5...

Independent retrieval

2026-09-16T08:40:06.650684ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006530
observed 3f74462a1acc46b9bcc2067eab279118...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:40:06.634194ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006530/manifest.json
observed 0045a0bdc76e3fa4b346a688712c0688...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:40:06.515767ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006530/publication.md
observed 0e1acb0ddbb32a83d355ed7c9de0bca8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:40:06.503637ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006530/publication.txt
observed dab5b229b5e348b6c05c9d0a3fade2cf...
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.