OpenTechnical

OT-2026-000090565

Publication integrity record

Four cup vacuum gripper, four zone face, three stage ejector, pressure sensor per zone, sustained blow-off before set-down, on a tool changer

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-2026-000090565) never changes.

Identity and time

Publication numberOT-2026-000090565 · never reused
Internal UUID01a0ae9c-7f2f-78d2-a90e-928a5790d704 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:46.997728Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090565
StatusPUBLIC

Content hashes

Canonical text6e219d6f94e3e6487d40b490e9baf80477928f75fa88812b64a7dc9b08bd7bf3
Markdown916fe05f913a9a6bb0b7d745856152c84e0e104abeaa6da5a3a33a7a6acf2991
PDF
Publication page505062e9dd1f7ce7fed536363f616bbe115871b49b716bc830ff653be727795a
Manifest1c5ce4e7ceba497b8727743357566064344ef3bd60f3bca777004d15e6419658

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
SignatureXFx6eBFemzYTe8DIb5+2VWMeXiXkGZQN+lKBZJtoyC4yA8irtjlTVUd0CatAvMat05sgGMuuV48RdPEOHVnDCw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T09:44:44.486088ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090565
observed 505062e9dd1f7ce7fed536363f616bbe...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:44.468842ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090565/manifest.json
observed 1c5ce4e7ceba497b8727743357566064...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:44.452217ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090565/publication.md
observed 916fe05f913a9a6bb0b7d745856152c8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:44.434739ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090565/publication.txt
observed 6e219d6f94e3e6487d40b490e9baf804...
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.