OpenTechnical

OT-2026-000077540

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, pump fed, vented after 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-2026-000077540) never changes.

Identity and time

Publication numberOT-2026-000077540 · never reused
Internal UUID01a0ae95-2ece-7745-9b55-3a8add62491b · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:56:47.703064Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000077540
StatusPUBLIC

Content hashes

Canonical text5accf1f3094c2273b27748bbdab8e7fd16458da168d18d7d36378eb620eaa290
Markdowna0937dedaef29c05df14ae00a71689e7ac7a62a1293e7fdcbd836463706443ee
PDF
Publication page42b9acf1ca82d0fcb974912aee3486550cf28f82ee9a13bcf5c05b1458b514ea
Manifestc9a0c14200ab1f88ead4dbdb0341e089d2ff80c4d3f717c0e2eb5cfec12b1c20

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
SignatureTGX3JO6uWIZLjsKF3c3nVRp/D5LfD9PLbQO74VeBPXzo2axSn0n3/eljGOvRGYXsAJ4gjoDnkQfqFiE1HESVCw==
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

2026-09-17T10:06:52.872613ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077540
observed 42b9acf1ca82d0fcb974912aee348655...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:52.851964ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077540/manifest.json
observed c9a0c14200ab1f88ead4dbdb0341e089...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:52.831972ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077540/publication.md
observed a0937dedaef29c05df14ae00a71689e7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:52.749331ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077540/publication.txt
observed 5accf1f3094c2273b27748bbdab8e7fd...
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.