OpenTechnical

OT-2026-000073701

Publication integrity record

Four bellows cup vacuum gripper, four zone face, six outlet manifold, pump fed, supply line 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-2026-000073701) never changes.

Identity and time

Publication numberOT-2026-000073701 · never reused
Internal UUID01a0ae93-2b8d-7367-af62-1fb96ed2937e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:35.679268Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000073701
StatusPUBLIC

Content hashes

Canonical text601d819b02a34f0d755d98fedef147b0ba525b86d8235d5036a1bb42a5fd3d69
Markdownd885d3826b6770aaab01b08ed4c237ca3c329e00d48758774faae4f497a7895d
PDF
Publication page2f6a48cb5203451cccd6ed7fd7f7ce70276aa1d34d39942c3d745bd200f50fbc
Manifest89755b9b6c56b20678157cd980a521e55012df72e6187097cdb4d89b73b45aa2

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
SignaturetU6vBgKrm1g7togetwo+Lxc41NoOjMvvlBeCSYcZOgAYpvi/AcgLBW+dKYLvUh4XaVin3pFgVE+fALh3NnH2CA==
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

2026-09-17T10:19:46.042734ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073701
observed 2f6a48cb5203451cccd6ed7fd7f7ce70...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:46.025357ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073701/manifest.json
observed 89755b9b6c56b20678157cd980a521e5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:46.006772ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073701/publication.md
observed d885d3826b6770aaab01b08ed4c237ca...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:45.987470ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073701/publication.txt
observed 601d819b02a34f0d755d98fedef147b0...
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.