OpenTechnical

OT-2026-000028217

Publication integrity record

Three cup vacuum gripper, three outlet manifold, three stage ejector, 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-2026-000028217) never changes.

Identity and time

Publication numberOT-2026-000028217 · never reused
Internal UUID01a0ae72-a521-7107-b530-068ee039e355 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:04.113553Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000028217
StatusPUBLIC

Content hashes

Canonical text8fa0a00db8a5693c5007d6b0bc1e28f86f0fe3b8edd772d6a10e5657d6aa9fcb
Markdown49e6c3e3f2cdc1e7d98fdd228720179b94cc19d85e258b31f40f56b0ad73ae7b
PDF
Publication page19a603d7ecc3218f8238d56a876410ac9732bd4957ea0da31af51d7590661cae
Manifestcb0611c0e1c9fc1e7fd8fc27a6ab1916c25c17a80e05761bb5a45da0d3e9d084

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
Signaturej+nYbDOJ/XWh95G+12ONpvYaAhDABRtTw6DER14lNuwFvVNLpJXSTcadu8gq1YAw6HOMdRQSJJDDsHcVBVaCBw==
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

2026-09-17T11:42:34.853420ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028217
observed 19a603d7ecc3218f8238d56a876410ac...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:34.838923ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028217/manifest.json
observed cb0611c0e1c9fc1e7fd8fc27a6ab1916...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:34.822841ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028217/publication.md
observed 49e6c3e3f2cdc1e7d98fdd228720179b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:34.806142ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028217/publication.txt
observed 8fa0a00db8a5693c5007d6b0bc1e28f8...
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.