OpenTechnical

OT-2026-000048337

Publication integrity record

Single cup vacuum gripper, common isolation valve, three stage ejector, supply line pressure sensor, sustained blow-off after 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-2026-000048337) never changes.

Identity and time

Publication numberOT-2026-000048337 · never reused
Internal UUID01a0ae80-4de4-73d3-aaff-0a68555a2039 · 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-2026-000048337
StatusPUBLIC

Content hashes

Canonical text4cb5848fcfd4112b43e697600f0d854b037561cd5252097099630d8190bc2032
Markdown8271c417556eedb71fe84a3563bce408e140b75858d741008ec99373db35258f
PDF
Publication page58ff649ca53fe61c7ebfbf15effa0aaabb6b5e05bfdf20586db59c15d753f9b4
Manifestd009b974f6d15a219b169aaf96d93e619aa09fc55d0b31d5460ccc8ff07326a6

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
SignatureHSOEXDx6lu+nEgAOZu16bY5bzHnCnqxLy7ru85rDEJBn2rqeIc7Wowv+P2+9Z8VE13ZKyxkqDhSJB2jvleKjBg==
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

2026-09-17T11:04:56.719583ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048337
observed 58ff649ca53fe61c7ebfbf15effa0aaa...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:04:56.698718ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048337/manifest.json
observed d009b974f6d15a219b169aaf96d93e61...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:04:56.679310ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048337/publication.md
observed 8271c417556eedb71fe84a3563bce408...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:04:56.660905ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048337/publication.txt
observed 4cb5848fcfd4112b43e697600f0d854b...
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.