OpenTechnical

OT-2026-000028583

Publication integrity record

Three bellows cup vacuum gripper, three zone face, per zone isolation, pump fed, pulsed 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-2026-000028583) never changes.

Identity and time

Publication numberOT-2026-000028583 · never reused
Internal UUID01a0ae72-e2f8-7810-9ebf-d27ac9f28170 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:19.949572Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000028583
StatusPUBLIC

Content hashes

Canonical text60466b27e1412bb145a49ab06478a5ad76a28aa1c53f5a30000c5a242bda69e4
Markdown1cc007c934715720866e2b4863af809cd47fce338f7241ae14fc6664963716ca
PDF
Publication page288482e042afbd58c31c873597f815536a30fa7182a2de7154de66289317069f
Manifest6c21b03b79c9896d6bc1534577d48d96aac2d4e73dc36ce84af7ee7c102766d5

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
Signature6t5HCXIRiyaRWl+XukKOTFom/4OeiZ9yZiJtI5zhsnYNTE8IynU+tg7RwNG7kRlkh6+1uPlKPFmPIGBDpP96Ag==
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

2026-09-17T11:40:52.528641ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028583
observed 288482e042afbd58c31c873597f81553...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:52.512076ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028583/manifest.json
observed 6c21b03b79c9896d6bc1534577d48d96...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:52.496254ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028583/publication.md
observed 1cc007c934715720866e2b4863af809c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:52.477732ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028583/publication.txt
observed 60466b27e1412bb145a49ab06478a5ad...
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.