OpenTechnical

OT-2026-000032415

Publication integrity record

Four bellows cup vacuum gripper, four zone face, four outlet manifold, pump fed, pulsed blow-off before 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-2026-000032415) never changes.

Identity and time

Publication numberOT-2026-000032415 · never reused
Internal UUID01a0ae75-106e-70c2-9b55-9f127e8a6e5d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:21:42.658092Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000032415
StatusPUBLIC

Content hashes

Canonical textaf12cacba1e2a4567dd0fe829b80d3fe42c66ba16259a040ffce266ab549d3dd
Markdown87eeddb9ca9595f37675657634b4ec248d61364a2818492d344f787406730fa5
PDF
Publication pageca90c4c8075cf671eb0d4f9ed15758d7e3d2752334f34408c16b5d3bacca2289
Manifestca0c649755c02e9a725697ad1d8c2f746d57d584f9044c9306fc5556c6e30d89

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
Signaturep5wfLPZ6C5rnCZsPSNaiGhl8XNu4mS3F7ASpzyY2pm0xbcoIH6MClrmA6oCyP0TKkQ571NhPXtx51SEJ4Hz2Bg==
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

2026-09-17T11:33:49.943301ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000032415
observed ca90c4c8075cf671eb0d4f9ed15758d7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:33:49.926505ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000032415/manifest.json
observed ca0c649755c02e9a725697ad1d8c2f74...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:33:49.908752ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000032415/publication.md
observed 87eeddb9ca9595f37675657634b4ec24...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:33:49.889285ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000032415/publication.txt
observed af12cacba1e2a4567dd0fe829b80d3fe...
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.