OpenTechnical

OT-2026-000042089

Publication integrity record

Four cup vacuum gripper, four outlet manifold, plant vacuum 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-2026-000042089) never changes.

Identity and time

Publication numberOT-2026-000042089 · never reused
Internal UUID01a0ae7a-5d71-7447-beb8-f04f6234d071 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:27:30.052779Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000042089
StatusPUBLIC

Content hashes

Canonical text027ce4c9a7789dc65ba14ee1f5c166dcc765bb94d3d44ec6d3f6081cfadca005
Markdown9bc0fb97bd3639ac321defc32f16011daa0f7023f16a786c38af8fb773a9ffb7
PDF
Publication pagecbac140a2430f824f411d83f00c2f58969befba7bbb49b1f6670f9533526b036
Manifest868b07ff8c8b9a4c0fb16c697768dedf2412cd3f5f1e997e89797434ef1bdfa1

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
SignatureEuU9DEmC71Rx3nkXdIE8q+tl1vdYxjO8CQ+li6wf4SAiXv0AN2OECD/oEgApTLWYq8tFxxXJxgkvFN9Zo7LwCQ==
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

2026-09-17T11:15:37.148612ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042089
observed cbac140a2430f824f411d83f00c2f589...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:37.128329ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042089/manifest.json
observed 868b07ff8c8b9a4c0fb16c697768dedf...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:37.108031ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042089/publication.md
observed 9bc0fb97bd3639ac321defc32f16011d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:37.088662ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042089/publication.txt
observed 027ce4c9a7789dc65ba14ee1f5c166dc...
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.