OpenTechnical

OT-2026-000019079

Publication integrity record

Four cup vacuum gripper, four zone face, six outlet manifold, pump fed, 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-2026-000019079) never changes.

Identity and time

Publication numberOT-2026-000019079 · never reused
Internal UUID01a0ae6e-d523-7e5a-9a70-312c49a61f12 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:14:54.261386Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000019079
StatusPUBLIC

Content hashes

Canonical text9ef430788f66de88cfff96de27e3a8c7ee58349ac9158afba9b550a295c9b95d
Markdownb70888498aa3796381513358b7da69137091ec38a34df27ae10db29d8f4767f6
PDF
Publication page4da585db76f8b2edd10ceaa9be08773a6933b1c8895db17685af9f2f017bc94c
Manifest8efdc2459c3c0e7b6331a0dadd1433bb2f31aefe64634fe8886488dc687e7948

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
SignatureHcAWMoT0X7cZ33EeG/urF5ej8ITLXwAuSqxUTYTvFwTZm8QeCekY5LIMDLMEv2zZgEcmmDoOmCpWbxI9sLDGDw==
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

2026-09-17T11:59:46.936656ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019079
observed 4da585db76f8b2edd10ceaa9be08773a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:59:46.918704ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019079/manifest.json
observed 8efdc2459c3c0e7b6331a0dadd1433bb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:59:46.900493ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019079/publication.md
observed b70888498aa3796381513358b7da6913...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:59:46.881785ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019079/publication.txt
observed 9ef430788f66de88cfff96de27e3a8c7...
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.