OpenTechnical

OT-2026-000013143

Publication integrity record

Two cup vacuum gripper, two zone face, per zone isolation, plant vacuum fed, 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-2026-000013143) never changes.

Identity and time

Publication numberOT-2026-000013143 · never reused
Internal UUID01a0ae6d-6fc8-75ae-9b62-daa234fee166 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:22.837188Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000013143
StatusPUBLIC

Content hashes

Canonical text6a0a83ba17d9a5228b98eba7480bbe8507ea9cd8d720f014aba50fe4cf31fea2
Markdownda4df5ba0075f55f15009e05521bd8665b2c018fbe9e6969cba0e7b1ed7f914d
PDF
Publication page89875d19a9886d0c52c1c16e3c2cdc7eea21cb31715c6c752f0652c101808479
Manifestd665facaabee0bfb4ae445864e66aa7e0876023e83d9fb1d1a2a686c0ce4864d

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
SignatureeuxYTyQcbdgpxLoA8cRREl18aUvTdrwpcEkGEIpP+J25i9pApnsAtRqe8UCDOUxlR4bYgIhOsB/wg2yqH2qrBw==
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

2026-09-17T12:09:30.422017ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013143
observed 89875d19a9886d0c52c1c16e3c2cdc7e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:30.399958ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013143/manifest.json
observed d665facaabee0bfb4ae445864e66aa7e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:30.378866ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013143/publication.md
observed da4df5ba0075f55f15009e05521bd866...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:30.360951ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013143/publication.txt
observed 6a0a83ba17d9a5228b98eba7480bbe85...
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.