OpenTechnical

OT-2026-000090836

Publication integrity record

Four cup vacuum gripper, four zone face, per zone isolation, plant vacuum fed, pressure sensor per zone, sustained 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-2026-000090836) never changes.

Identity and time

Publication numberOT-2026-000090836 · never reused
Internal UUID01a0ae9c-c010-7276-84de-3455392ca3bf · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:03.518217Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090836
StatusPUBLIC

Content hashes

Canonical text4725e0b0c2b9f7157f0f04bd136687483a40cc7ef6c622eead35f5bc38d69183
Markdown91a6686b57c00d9d264b44c73bac225a89138a2a865f5a26a1c1bb531dddbeb1
PDF
Publication page882b0b09e1b13f2770daeae517039e005981b43b68f86ee6fede2eea76b8f243
Manifest43847a5d96f7d73033ab4836b7e40a2d1509f0440bad4ba6a761311bb42d9e07

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
SignatureAZZRj1sViTtTEMqb38yp5jP2wTTXn69CLjXXc0MsT61EBbmWu8nTpEn2M30li7GvUuKDrHcc+xzxO/xnzXO7Bw==
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

2026-09-17T09:43:52.895588ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090836
observed 882b0b09e1b13f2770daeae517039e00...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:52.876660ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090836/manifest.json
observed 43847a5d96f7d73033ab4836b7e40a2d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:52.859032ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090836/publication.md
observed 91a6686b57c00d9d264b44c73bac225a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:52.843312ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090836/publication.txt
observed 4725e0b0c2b9f7157f0f04bd13668748...
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.