OpenTechnical

OT-2026-000020063

Publication integrity record

Four cup vacuum gripper, four zone face, two stage ejector, 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-2026-000020063) never changes.

Identity and time

Publication numberOT-2026-000020063 · never reused
Internal UUID01a0ae6f-1fb8-7d66-9689-1462c2b24cfa · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:13.354643Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000020063
StatusPUBLIC

Content hashes

Canonical textd2acb4a73f4424675a682e1d7787bb596bdaa47ad77af35074d7309f5ed4bbb8
Markdown1c49d537638529807cd0ae9291f2a0194a9652c1ec7595e8d59d9167f6790ce9
PDF
Publication page09eb8ccaeff801de1f52a838f6a9d0b17f41b0891990fc221d716973b816fd85
Manifest4b4f8004555dc24176a4d6bb3c179b8a3a4c840b04dc3dc11d6a71c0b62dbc96

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
SignatureSt7BHAVB7t3GRPrp5VOiH8qOyhg3VdHrzVwgawwcJqRqWIIAH7/v1Jrd5wz4n6o2kcXErMwtT6cZ7MgqyRN7Dg==
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

2026-09-17T11:58:20.148290ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020063
observed 09eb8ccaeff801de1f52a838f6a9d0b1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:20.127105ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020063/manifest.json
observed 4b4f8004555dc24176a4d6bb3c179b8a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:20.108172ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020063/publication.md
observed 1c49d537638529807cd0ae9291f2a019...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:20.090417ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020063/publication.txt
observed d2acb4a73f4424675a682e1d7787bb59...
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.