OpenTechnical

OT-2026-000020903

Publication integrity record

Three cup vacuum gripper, three zone face, per zone isolation, 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-2026-000020903) never changes.

Identity and time

Publication numberOT-2026-000020903 · never reused
Internal UUID01a0ae6f-65e3-7a47-b6b9-036688b38424 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:31.316024Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000020903
StatusPUBLIC

Content hashes

Canonical text16556859b5bec5feeb81c0d1630db5b5d66ec0635af6583a2708e0286b6b261e
Markdown110c3e58b02f59e41cb78984e329b8db415475f06c82da8e2a3a163fdd4c152e
PDF
Publication pagea62cc4b6d833fdca482719f7dd490573094c5b5239666e6655ad6bcdaaf4c350
Manifest853a805c1faa84c758811b46708b4c05932c5ee8c3319d4db81c3430e1ae7fe0

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
SignatureEWPO5Rg7Zf8BeQFn0mI6PzUuXamTD51MBsyoELJt9ixrCZxTGYvr9oJpkMYa11LAbYb90ueVnV8pUODewsQuBA==
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

2026-09-17T11:56:01.221815ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020903
observed a62cc4b6d833fdca482719f7dd490573...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:56:01.201344ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020903/manifest.json
observed 853a805c1faa84c758811b46708b4c05...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:56:01.181543ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020903/publication.md
observed 110c3e58b02f59e41cb78984e329b8db...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:56:01.161605ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020903/publication.txt
observed 16556859b5bec5feeb81c0d1630db5b5...
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.