OpenTechnical

OT-2026-000047555

Publication integrity record

Two bellows cup vacuum gripper, two zone face, common isolation valve, two 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-2026-000047555) never changes.

Identity and time

Publication numberOT-2026-000047555 · never reused
Internal UUID01a0ae7f-3e59-771c-97ed-2e935c732b58 · 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-2026-000047555
StatusPUBLIC

Content hashes

Canonical text769a126acc8a22d6c946616a329acab790721cbfde67fc362a69237cfd72142c
Markdownd95d2f191fbecd161dd1d7e6ff65aea4fb250b29517f69f76f26b8f268c79870
PDF
Publication page04b2907b2655e3838aa21e2c2a7b7fbd48436acef4fb108278be2320b703b0e0
Manifestd8c16fcc409bde7c21cc0e1deec7dbfa965da2f8a88d81f9dc5d3e7286ae25ab

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
Signature1HC+Vy6+HWHWIdFdllWzagZ0khT7f6anVt/dIWEucw4ngWrnzA94I/6sOj+A2GAxcnJ2UCl3K6bcXFWI0AI6CA==
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

2026-09-17T11:06:40.574808ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047555
observed 04b2907b2655e3838aa21e2c2a7b7fbd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:06:40.557162ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047555/manifest.json
observed d8c16fcc409bde7c21cc0e1deec7dbfa...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:06:40.537493ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047555/publication.md
observed d95d2f191fbecd161dd1d7e6ff65aea4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:06:40.520279ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047555/publication.txt
observed 769a126acc8a22d6c946616a329acab7...
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.