OpenTechnical

OT-2026-000045515

Publication integrity record

Three cup vacuum gripper, three zone face, 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-2026-000045515) never changes.

Identity and time

Publication numberOT-2026-000045515 · never reused
Internal UUID01a0ae7d-8f01-7050-97fa-8184d955c2ca · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:30:59.492045Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000045515
StatusPUBLIC

Content hashes

Canonical text845b57fe3812694c1dcf75bfa9252b8a8d4158ddda4c47112552b15d6a1ddcc2
Markdownab7ab111bd9e6626cef6ba33581475f693a9d90af71fff63d596eef70192b3ae
PDF
Publication page464cc8901f6b6f0b15842be20b74473da89095a8d2933acd1b94988f92947e9b
Manifest6847f8bfcd82f006de91bf181daa23e3e6bf1c0693cc369c12b8de98c297e50b

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
Signatureuli5mPjHDcINUc5EE5LJzQgYgQt/r2RhudcO1FiJFm70Czmfvw8K6U1g8Wql7Wt1G7jr5tyO0+SH1W3DST8wDg==
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

2026-09-17T11:09:15.406547ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000045515
observed 464cc8901f6b6f0b15842be20b74473d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:09:15.389268ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000045515/manifest.json
observed 6847f8bfcd82f006de91bf181daa23e3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:09:15.372544ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000045515/publication.md
observed ab7ab111bd9e6626cef6ba33581475f6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:09:15.354457ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000045515/publication.txt
observed 845b57fe3812694c1dcf75bfa9252b8a...
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

OT-CUSTODY-2026-W38OpenTechnical-Custody-2026-W38.tar.zst
f2fc69d02142424a578267e5e3a6d3bb... · 402,218,449 bytes · held by held on site pending an external custodian · retention permanent