OpenTechnical

OT-2026-000005781

Publication integrity record

Vacuum cup gripper, common isolation valve, six outlet manifold, pump fed, vented 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-2026-000005781) never changes.

Identity and time

Publication numberOT-2026-000005781 · never reused
Internal UUID01a0a944-ae2b-7618-b77f-6312f006c8e4 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:10:45.678501Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000005781
StatusPUBLIC

Content hashes

Canonical texta8323d2740a0968a33d1a9b9382806d07dafbe866a2b8df6a7a0061390b9841c
Markdown57e5944d52a20a6d373cb2a7dd7d3626357d3a7f586527078a0c36cf70a355ad
PDF
Publication page2204b4289f18a7e0f946d95e3dd8e69488a34f635ac549f6bdff776fa3165db7
Manifest918f98ea4bf8fbc1f4d069a7b0d68de6314386850883dea9e25b3ca9a38664c9

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
SignaturePHHbjLGsZWW3C085q4O1PFarwzTjbdyvNEHsDy6tSKpBUJTQ6XIWkkL1DDqo+OjTeDESvIxkUtVm7c0ROddhBg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:27:03Z
batch OT-TS-2026-W38-012 · RFC 3161 token · inclusion proof
root dbe93cb6b2158496df2f60f3b6822537...

Independent retrieval

2026-09-16T08:20:33.653999ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005781
observed 2204b4289f18a7e0f946d95e3dd8e694...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:20:33.639471ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005781/manifest.json
observed 918f98ea4bf8fbc1f4d069a7b0d68de6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:20:33.623512ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005781/publication.md
observed 57e5944d52a20a6d373cb2a7dd7d3626...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:20:33.487863ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005781/publication.txt
observed a8323d2740a0968a33d1a9b9382806d0...
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.