OpenTechnical

OT-2026-000042778

Publication integrity record

Two pad foam vacuum gripper, two outlet manifold, common isolation valve, pump fed, sustained blow-off after 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-2026-000042778) never changes.

Identity and time

Publication numberOT-2026-000042778 · never reused
Internal UUID01a0ae7a-c0d0-7b09-bcee-00a214b8b2c5 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:27:55.489038Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000042778
StatusPUBLIC

Content hashes

Canonical textff16ed0fda0eb2514618076a393f36f7e4e87f87d31199be499f8cad201dff7e
Markdown5b13a22d83708bbbcfd18de41100c36a811ee1ccd85176408f8a0eff3f4d3a54
PDF
Publication pagee9979ae5fb68e2eeeff3ffc59f3e7726d784dd9f9d6b50ff6e8d2994fdf8a67a
Manifest10622538139786f63159a99ef670b7beef458869cfb6a8b2cf6529886de23e6e

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
SignatureTmcrMXTV7NO2SOF94rv6pK4esY6u64uYH+KDg/kOGRY7Yk8faxigz3FcON7GNm582O56umeEVl9/IdxzFa5wCw==
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

2026-09-17T11:15:14.382149ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042778
observed e9979ae5fb68e2eeeff3ffc59f3e7726...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:14.361984ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042778/manifest.json
observed 10622538139786f63159a99ef670b7be...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:14.343930ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042778/publication.md
observed 5b13a22d83708bbbcfd18de41100c36a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:14.325469ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042778/publication.txt
observed ff16ed0fda0eb2514618076a393f36f7...
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.