OpenTechnical

OT-2026-000047487

Publication integrity record

Two bellows cup vacuum gripper, two zone face, common isolation valve, single stage ejector, pressure sensor per zone, pulsed blow-off before set-down, on a tool changer

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-2026-000047487) never changes.

Identity and time

Publication numberOT-2026-000047487 · never reused
Internal UUID01a0ae7f-3e58-7512-ab40-9260f144c74d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:32:49.774666Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000047487
StatusPUBLIC

Content hashes

Canonical text27fe6ff8d5fbd2fba1ea1c1906064db0c3f1849673b889bafddd583408f08898
Markdown2dad9f776b3ff4065187b98b1071345116aa84cb2bec6aeaf0093f43e82eaa04
PDF
Publication page0cd9328236300db661f6c0110bb75ff93665411d87d8593009265ffef5fde510
Manifestff594c4449bba4ca59d1e3f13a0565d7f17de04f46bcc229d9e33394525d99ce

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
SignatureAhfA8zxNoeeYyhZY3Hx9qu6g3NoOHeITIm1yLBaCaTDmxDWTtWcJ1QAanlVdX5Bt1ekGH/3YvXq62Wqkrk3xCw==
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

2026-09-17T11:06:31.652756ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047487
observed 0cd9328236300db661f6c0110bb75ff9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:06:31.635247ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047487/manifest.json
observed ff594c4449bba4ca59d1e3f13a0565d7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:06:31.616514ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047487/publication.md
observed 2dad9f776b3ff4065187b98b10713451...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:06:31.598515ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047487/publication.txt
observed 27fe6ff8d5fbd2fba1ea1c1906064db0...
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.