OpenTechnical

OT-2026-000048275

Publication integrity record

Foam pad vacuum gripper, four zone face, common isolation valve, single stage ejector, 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-2026-000048275) never changes.

Identity and time

Publication numberOT-2026-000048275 · never reused
Internal UUID01a0ae80-4de3-748b-9c3c-8544de6faad6 · 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-2026-000048275
StatusPUBLIC

Content hashes

Canonical textf9639a91cb4b15d589202366cf86f8abdde6e100671815433243e24a16aa7db4
Markdowneed6bc1a846f03eb8ae5a73b14754b79bfe1a412a8af771993dac9506bec685d
PDF
Publication page7e472871a8deeba38a9eb0ce938a5c1d0f6a6c378742e41ba72362e88bb4845d
Manifest225a5167b9e022eeccf9a7f8d4fc84fc1c278a0232edea000008cb2a2eab75f5

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
SignaturetosOzoLHJ0yBcY4eJ8SK8sjihU/cxqzOK/zs779srGfESHqRbb3Vn8UIROybJyj+YqiIUNebiKK0Xlr7FTjUCA==
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

2026-09-17T11:04:51.286064ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048275
observed 7e472871a8deeba38a9eb0ce938a5c1d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:04:51.262116ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048275/manifest.json
observed 225a5167b9e022eeccf9a7f8d4fc84fc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:04:51.239653ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048275/publication.md
observed eed6bc1a846f03eb8ae5a73b14754b79...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:04:51.216372ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048275/publication.txt
observed f9639a91cb4b15d589202366cf86f8ab...
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.