OpenTechnical

OT-2026-000048591

Publication integrity record

Foam pad vacuum gripper, four zone face, common isolation valve, plant vacuum fed, pressure sensor per zone, 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-2026-000048591) never changes.

Identity and time

Publication numberOT-2026-000048591 · never reused
Internal UUID01a0ae80-4de8-723c-9583-be5ac9d893a8 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:33:59.290761Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000048591
StatusPUBLIC

Content hashes

Canonical text6c3ed590afba36a88c2d366dfba7d2bad354338756ebe76c73a78987b1531ba7
Markdown5f78372f50b0f1455ebcc1d6095a3d07f434bddb7d1086a1d4a87c4d8a5c01e5
PDF
Publication pageb9900c64db929a7d9c672e1208b1d410a2fce0a7c500b17fbb2a363397447c35
Manifestfddef2b5260fb04c3ce2248ac5075d001f7969fabc249618d4f854e815cba454

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
SignatureI7GOSclA8iBy32PPe8jXTHQP9y9EKYwOXtcB9tjJuWRe8kELO8iTLsPUxlB+BFt19N1T485xOptL5Pl0Cl9oDA==
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

2026-09-17T11:05:24.057433ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048591
observed b9900c64db929a7d9c672e1208b1d410...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:24.037753ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048591/manifest.json
observed fddef2b5260fb04c3ce2248ac5075d00...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:24.016577ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048591/publication.md
observed 5f78372f50b0f1455ebcc1d6095a3d07...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:23.998119ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048591/publication.txt
observed 6c3ed590afba36a88c2d366dfba7d2ba...
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.