OpenTechnical

OT-2026-000090318

Publication integrity record

Two bellows cup vacuum gripper, two zone face, pump 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-2026-000090318) never changes.

Identity and time

Publication numberOT-2026-000090318 · never reused
Internal UUID01a0ae9c-7f2c-7a0a-abce-766c48803927 · 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-2026-000090318
StatusPUBLIC

Content hashes

Canonical text9f9aa14d94ba3067872d5ed49ce43c9ca66dcbd3ece8a8174412b2751e7b915a
Markdown5363a248a54b14fdb8bf6ba91107f1dbb62f69fd9bd435379d405fecc72301b7
PDF
Publication page22296baf7813909d3f4fb5936595208453f5072bb74519ffa0a3b64e2f44f494
Manifest37d60bdc05af5958921cdb41c16fb02ef35a6405eb77f7edc62e0541fd319c33

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
Signatureg233p5/inE1GA7HyyD9lWhNk3XlD3Vv+C+ONcqxvRH2f+Nz+0WkIBireo3ycJSkxwqcisrxsldb6NqJIs8QnBg==
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

2026-09-17T09:44:24.179030ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090318
observed 22296baf7813909d3f4fb59365952084...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:24.163218ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090318/manifest.json
observed 37d60bdc05af5958921cdb41c16fb02e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:24.146963ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090318/publication.md
observed 5363a248a54b14fdb8bf6ba91107f1db...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:24.129127ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090318/publication.txt
observed 9f9aa14d94ba3067872d5ed49ce43c9c...
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.