OpenTechnical

OT-2026-000042605

Publication integrity record

Four cup vacuum gripper, four 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-2026-000042605) never changes.

Identity and time

Publication numberOT-2026-000042605 · never reused
Internal UUID01a0ae7a-c0ce-7cb0-a70d-21a945a9fd83 · 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-2026-000042605
StatusPUBLIC

Content hashes

Canonical text628c9af2d6b884392e377a9530bc0ed835d0da6664579c2f947a1ea495ab5963
Markdownc2d0805df253704e8febe1a3cfe797c88a3bef657c075b5e70009feb37e74098
PDF
Publication page557760aeb2422ac0451ad4ada4cf5879474f8e49e8cdbc9c2d843ce6261db4dc
Manifest9319544b7cdaecdbb43bc5e62025120754934436f07d882593202e699e1ce4ab

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
SignatureapYTAlHjZQEiCh/UCLCRGwe6GAalEdmNWKw6gfJIHni3wxswRHR58AbtB5dfrBcyZQOmQBMdY1h5I5xYAYEUAw==
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

2026-09-17T11:14:19.879718ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042605
observed 557760aeb2422ac0451ad4ada4cf5879...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:14:19.860968ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042605/manifest.json
observed 9319544b7cdaecdbb43bc5e620251207...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:14:19.841460ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042605/publication.md
observed c2d0805df253704e8febe1a3cfe797c8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:14:19.822483ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042605/publication.txt
observed 628c9af2d6b884392e377a9530bc0ed8...
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.