OpenTechnical

OT-2026-000019840

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, common isolation valve, two stage ejector, manifold pressure sensor, 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-2026-000019840) never changes.

Identity and time

Publication numberOT-2026-000019840 · never reused
Internal UUID01a0ae6f-1fb5-7cc7-a84b-286557db742c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:13.354643Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000019840
StatusPUBLIC

Content hashes

Canonical text28f0cfaf38ce44232a880532ddc98b558f1789792615a6704d183ce8a3e2459e
Markdownc6c3ae1bae543a73527cdedd15e262c8fb2c39d3c4590f70c35c76355194c97c
PDF
Publication pagec9bb1ac21f0496f9b7e02e1f5c863c91b03ba5a253d58b1680a751c068dbd58c
Manifest99563c29120ba776a52077b3c94005ace8d199d9334c7652b39235de7f920a36

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
SignatureEamw22uDN7v2AEpRGXaHMz+1XVeT03/deypDTTJcwIiK8MKOE6OTEw+8hOyMRtoauh2nFoN/nsjMHs1m3xrtAw==
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

2026-09-17T11:58:02.106305ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019840
observed c9bb1ac21f0496f9b7e02e1f5c863c91...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:02.088054ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019840/manifest.json
observed 99563c29120ba776a52077b3c94005ac...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:02.071506ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019840/publication.md
observed c6c3ae1bae543a73527cdedd15e262c8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:02.054845ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019840/publication.txt
observed 28f0cfaf38ce44232a880532ddc98b55...
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.