OpenTechnical

OT-2026-000086172

Publication integrity record

Two bellows cup vacuum gripper, two zone face, common isolation valve, single stage ejector, 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-2026-000086172) never changes.

Identity and time

Publication numberOT-2026-000086172 · never reused
Internal UUID01a0ae99-e82c-75d3-927b-3e4f1e80b5f2 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:01:57.178584Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000086172
StatusPUBLIC

Content hashes

Canonical textfa133be1952fffab7344b5b1e5c9c5900c128ecc72e7985cc09a4ae20e143415
Markdownfcb3fc33645b15751e2f46e85ea7077af33065fdb417c1b773d5f55acea7104b
PDF
Publication pagecf8d6bb47f9805428bc9eb75108dcdf7d6877fb0bacf839b028c0c4f2d7d32f9
Manifestcfbe5d1a91aa22955802d6dc7b322f1ae05c8123670de21e2ab50bc6c343d794

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
Signature2OzKZmsuDiy37qPZ/M1LQ9NTWeNS2JF/xykNJ3uH3yKsN1RV9+0m0Oe0sxbTFLciiU9etv9n+cPYY8Lw2anzDg==
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

2026-09-17T09:53:50.777412ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086172
observed cf8d6bb47f9805428bc9eb75108dcdf7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:53:50.759858ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086172/manifest.json
observed cfbe5d1a91aa22955802d6dc7b322f1a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:53:50.743498ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086172/publication.md
observed fcb3fc33645b15751e2f46e85ea7077a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:53:50.724873ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086172/publication.txt
observed fa133be1952fffab7344b5b1e5c9c590...
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.