OpenTechnical

OT-2026-000045403

Publication integrity record

Foam pad vacuum gripper, three zone face, single 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-2026-000045403) never changes.

Identity and time

Publication numberOT-2026-000045403 · never reused
Internal UUID01a0ae7c-f76c-787d-a992-21857e2d4e95 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:30:20.545172Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000045403
StatusPUBLIC

Content hashes

Canonical text09d756ba6a3b1721967f64c981f68ca9db5f8f1eb803998b793b671415470115
Markdowne27afd1692b1a051b21fde6a7879a0d3f18aa7054a222429f9c052c29dd6e240
PDF
Publication page46f1c4159f625b765f039e13afbf61478dac97358e2b435aa62b2ee30bacae72
Manifestcca87be6fc60ffb37ddc2643d9d2c5fbb9c2e0fbc558e0158119f2e431e3e938

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
SignatureTEMcWDr190cZ58uIUsyryK7oEPUzDZRvdCUQojvNBhNG6KY5zW4qMgbkrrcRCy8se7Cba7xKYNkhLUI8N+CJCg==
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

2026-09-17T11:10:41.440058ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000045403
observed 46f1c4159f625b765f039e13afbf6147...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:10:41.420306ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000045403/manifest.json
observed cca87be6fc60ffb37ddc2643d9d2c5fb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:10:41.400131ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000045403/publication.md
observed e27afd1692b1a051b21fde6a7879a0d3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:10:41.380415ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000045403/publication.txt
observed 09d756ba6a3b1721967f64c981f68ca9...
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.