OpenTechnical

OT-2026-000019819

Publication integrity record

Three bellows cup vacuum gripper, three zone face, pump fed, pulsed blow-off before set-down

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-2026-000019819) never changes.

Identity and time

Publication numberOT-2026-000019819 · never reused
Internal UUID01a0ae6f-1fb5-7dbd-b516-265856abd700 · 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-2026-000019819
StatusPUBLIC

Content hashes

Canonical text6e882b9bcecd6a6c9f058a62ae7c5ac92e9e388ffcb46b3707b4771d43283727
Markdown101573615e5f86fe7f477864b06fb656b15b5fc07f70c04cd46e20d212f97279
PDF
Publication page1b190fa5f3484d8ec9f94e8a8fb813c41e995f8460cd44ee30dbe9602236ab24
Manifestef80517df9115a9684c1beff881820de68e3e83d9d6af9f0fbe0ad0e9c448650

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
Signature/2jUPMZhg5hFSDBWXCIJmNvQknFmPLBbSVZb4K8vYR/k8UcZJAB6R9FsLJ7gJWWakRPq10TjwNeFedgm5jhuDw==
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

2026-09-17T11:57:59.633521ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019819
observed 1b190fa5f3484d8ec9f94e8a8fb813c4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:57:59.615162ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019819/manifest.json
observed ef80517df9115a9684c1beff881820de...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:57:59.596255ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019819/publication.md
observed 101573615e5f86fe7f477864b06fb656...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:57:59.579699ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019819/publication.txt
observed 6e882b9bcecd6a6c9f058a62ae7c5ac9...
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.