OpenTechnical

OT-2026-000011835

Publication integrity record

Single cup vacuum gripper, common isolation valve, 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-2026-000011835) never changes.

Identity and time

Publication numberOT-2026-000011835 · never reused
Internal UUID01a0ae6d-1941-7683-9570-edac88684e40 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:00.631271Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000011835
StatusPUBLIC

Content hashes

Canonical texte494cd57cc87ffb533d0124bf39ea7713cb31eb92e4d27af00c5e66a060ce10e
Markdown15d4b1adc4b6b91ab3e12c229c2340a2066387be6e8298f3a831d71be73cee8f
PDF
Publication pageceef32149ab5e7675329bc56f6653db0ce595e9d6bee2ebf2ab8497d2d4022c5
Manifestdbdd5d0743652c68f0a1dc894d588cc1591755d0d5e75a2a961f68f29b7e2532

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
SignatureR4GPKLgKDTOZ2TIFxYGQDeWAU9Y1ssECh98pPv7yg7JkASaxF039wVuC1cksVyl3r0WBm0t6U8uiAlGKsHvOAA==
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

2026-09-17T12:12:34.285223ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000011835
observed ceef32149ab5e7675329bc56f6653db0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:12:34.267441ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000011835/manifest.json
observed dbdd5d0743652c68f0a1dc894d588cc1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:12:34.250295ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000011835/publication.md
observed 15d4b1adc4b6b91ab3e12c229c2340a2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:12:34.230089ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000011835/publication.txt
observed e494cd57cc87ffb533d0124bf39ea771...
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.