OpenTechnical

OT-2026-000028373

Publication integrity record

Four cup vacuum gripper, four outlet manifold, plant vacuum fed, manifold pressure sensor, sustained 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-2026-000028373) never changes.

Identity and time

Publication numberOT-2026-000028373 · never reused
Internal UUID01a0ae72-e2f5-7409-9160-3fa0d268d896 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:19.949572Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000028373
StatusPUBLIC

Content hashes

Canonical text820b1554340541a89e19f2d6c491c60d4ebd552e4ce1d577a0e448809eee57a6
Markdown36b5cf7d290319986e4fa6d542d041d8a5fcf7719f89513e060f5ddc07cd56a2
PDF
Publication paged780edd1abcd20270b211e7f2a42bedb847527da8eb7f38a150044fc38efbf69
Manifest92c5536a290a992bbd83823cf18dae15b1943c2b8d5b13574e17776a2062c09a

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
SignatureuS03sLknBzllGnbOjB/GRCT06yB2UYuPMxH3wwT+RPiRnHbB+jcLpRCn7YyewEtQX74OGAta5/4HQXGQ4jFFAw==
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

2026-09-17T11:40:23.330679ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028373
observed d780edd1abcd20270b211e7f2a42bedb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:23.312297ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028373/manifest.json
observed 92c5536a290a992bbd83823cf18dae15...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:23.293747ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028373/publication.md
observed 36b5cf7d290319986e4fa6d542d041d8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:23.275882ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028373/publication.txt
observed 820b1554340541a89e19f2d6c491c60d...
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.