OpenTechnical

OT-2026-000075557

Publication integrity record

Four bellows cup vacuum gripper, four zone face, six outlet manifold, pump fed, manifold pressure sensor, 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-2026-000075557) never changes.

Identity and time

Publication numberOT-2026-000075557 · never reused
Internal UUID01a0ae94-29fc-7320-92aa-18ca9dc62d32 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:55:40.814795Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000075557
StatusPUBLIC

Content hashes

Canonical text223e6626f3b65eb44f5d6272992390cc3ee40bf29e91be2583fb10e697aa0c29
Markdown30e47c49692ef579b484b77b5fd081e6c5337e77b30e43d3df687b61cc81d796
PDF
Publication pagefd6b26b3c895d581ac3099a11ba8fae2d7332849b3df709eeeaa53ff2b8b20c0
Manifest9e523c2f5334bf2534e890e683b7b8e50f90a2a758ace8217c2c4f2e612410dd

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
Signature0X98v6c0HuRRAwJPNqM5FkXGNdbipnQk5i4DXSscF43fK3WodWEZfNbuWNjZrr3e7AIQr+LpPYfP5CTZtNYjAg==
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

2026-09-17T10:13:07.234534ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075557
observed fd6b26b3c895d581ac3099a11ba8fae2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:13:07.216116ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075557/manifest.json
observed 9e523c2f5334bf2534e890e683b7b8e5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:13:07.197718ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075557/publication.md
observed 30e47c49692ef579b484b77b5fd081e6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:13:07.052302ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075557/publication.txt
observed 223e6626f3b65eb44f5d6272992390cc...
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.