OpenTechnical

OT-2026-000047387

Publication integrity record

Four bellows cup vacuum gripper, four zone face, per zone isolation, pump fed, pressure sensor per zone, 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-2026-000047387) never changes.

Identity and time

Publication numberOT-2026-000047387 · never reused
Internal UUID01a0ae7f-3e57-72e0-86be-158dcbe025e9 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:32:49.774666Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000047387
StatusPUBLIC

Content hashes

Canonical text0760523be2f7a4399274a35fa5c07d9afd11903b82341d5691ae595deb7931d8
Markdownd925da72e719857db7cb6bb804c15cabed6c5426d4808d3d5bbf463a3a7b713e
PDF
Publication page668c92acfaed9a996fb3fea52cebb5d4b6cd0cea3f406274df1ac4cf685c613f
Manifestd2dd0aabb6ad9f8215a0837a968225a82483cb2e4a98855a56d397958e8479a3

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
SignaturendT4MYig+beXqHnAG9KJ9MuLd1r2OXjyZ5p76LBm0469K9Cyqj2hysd87emJ0gZERmyKGTAVmfytqXBdvPUaDw==
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

2026-09-17T11:06:23.737685ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047387
observed 668c92acfaed9a996fb3fea52cebb5d4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:06:23.720325ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047387/manifest.json
observed d2dd0aabb6ad9f8215a0837a968225a8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:06:23.702541ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047387/publication.md
observed d925da72e719857db7cb6bb804c15cab...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:06:23.684973ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047387/publication.txt
observed 0760523be2f7a4399274a35fa5c07d9a...
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.