OpenTechnical

OT-2026-000090567

Publication integrity record

Four bellows cup vacuum gripper, four zone face, plant vacuum fed, pressure sensor per zone, sustained blow-off before 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-2026-000090567) never changes.

Identity and time

Publication numberOT-2026-000090567 · never reused
Internal UUID01a0ae9c-7f2f-7bb1-8a90-4dbcd9e70cb4 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:46.997728Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090567
StatusPUBLIC

Content hashes

Canonical text2d9810df6a4670a02c1d1aa6813f35ebae58b8d937a561579f590ae5116d0007
Markdowna50607d739fa505bc94f3daa3e2b1fbf9b00d6f43fdcd5d5f19b5cb4f7eb9c94
PDF
Publication pagea285497b0fdbf5ca41a144a4b73aa654713b2ce3c5dd59a0a7129afb417b3520
Manifest3b20a2aa958d1013dd4005b0e5592807c7477eb2966de86418ab57ea799f33f2

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
SignaturezWQZSWc/H8aj6yE5RH8SgLYPTQ3+MpIbFAduHtF1LZOl8K97nfg5Alb7ttTzG3HhmC+nq+M8Ly3bSODXFqNzAg==
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

2026-09-17T09:44:44.630516ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090567
observed a285497b0fdbf5ca41a144a4b73aa654...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:44.614980ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090567/manifest.json
observed 3b20a2aa958d1013dd4005b0e5592807...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:44.598218ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090567/publication.md
observed a50607d739fa505bc94f3daa3e2b1fbf...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:44.579620ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090567/publication.txt
observed 2d9810df6a4670a02c1d1aa6813f35eb...
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.