OpenTechnical

OT-2026-000077270

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, plant vacuum fed, vented 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-2026-000077270) never changes.

Identity and time

Publication numberOT-2026-000077270 · never reused
Internal UUID01a0ae94-f508-72e7-8bcf-d8f4c8c4c178 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:56:32.796581Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000077270
StatusPUBLIC

Content hashes

Canonical text45f73782813d8b274ecdaa597a521f4eb076140ac7a3e6b950d214f2c0d2d114
Markdown599abcf7394e58b514eb5291a580415be47c3fbd9fa9214bfcf6c26564bb3830
PDF
Publication page6dd7afb8292cc5db62c893c84ec28d481f9899c8676aabd03667b160f88420a4
Manifestc1e4ee4db04ecc0382a773d527d6ae9be14bd6f86182b6887ad07a4a12620683

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
Signature8Vm3ADwAzrPDZUJ83itbaujvNL9QKjS6rAsBrt6sKmls3MzEjeLzhC64cam1waGlQ7QY/A3hHO1HG7EMLaMiDw==
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

2026-09-17T10:08:54.065705ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077270
observed 6dd7afb8292cc5db62c893c84ec28d48...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:54.043563ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077270/manifest.json
observed c1e4ee4db04ecc0382a773d527d6ae9b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:54.021565ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077270/publication.md
observed 599abcf7394e58b514eb5291a580415b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:53.999233ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077270/publication.txt
observed 45f73782813d8b274ecdaa597a521f4e...
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.