OpenTechnical

OT-2026-000028509

Publication integrity record

Six cup vacuum gripper, six outlet manifold, two 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-2026-000028509) never changes.

Identity and time

Publication numberOT-2026-000028509 · never reused
Internal UUID01a0ae72-e2f8-766b-bdc0-a4b7069b987b · 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-2026-000028509
StatusPUBLIC

Content hashes

Canonical text4c30aa8f7340199c98e8dffcb6eb553440bae156e095d353fb25d168d0770edb
Markdown2742005b9f7291f3b2b7234f8fb59015c9ffc42be85c004b188891e878a2d0f7
PDF
Publication pagec5a1e08f44c6503a5d9c9c41afaa9fe1fbf225a76bfef4a54c38c7deed85665e
Manifest5f4b99b8d4704ec2dc83f6a201e06875b0dfda341f44d9c597537d8eee26cdad

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
SignaturebcP/DXuZoy/Ebp96z8YNCCvSA7IBVV7xCYJlLSaqg7EnFi6LH7sJ3u65JfUzYjx24ll9/bCOLWoNci+Wg5eJCg==
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

2026-09-17T11:40:46.479410ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028509
observed c5a1e08f44c6503a5d9c9c41afaa9fe1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:46.460810ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028509/manifest.json
observed 5f4b99b8d4704ec2dc83f6a201e06875...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:46.439205ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028509/publication.md
observed 2742005b9f7291f3b2b7234f8fb59015...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:46.419916ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028509/publication.txt
observed 4c30aa8f7340199c98e8dffcb6eb5534...
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.