OpenTechnical

OT-2026-000022519

Publication integrity record

Four bellows cup vacuum gripper, four zone face, common isolation valve, two stage ejector, pulsed 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-2026-000022519) never changes.

Identity and time

Publication numberOT-2026-000022519 · never reused
Internal UUID01a0ae6f-f4fe-73e5-950c-4279e43d6b21 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:16:07.953226Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000022519
StatusPUBLIC

Content hashes

Canonical textcc9ecf98b9b3abd4ff1f59d038315f6767b2fcf62cf2534ea6c9ffc25ec01ea1
Markdown057672e49a0207e3077230dcbd7978a7a16e05107a951655ba8bf788d09e1ff2
PDF
Publication page231dd4eef5389016ea8bd5eb0353b09f05ca727a426d07b8c071364df11c1000
Manifest2110a980afac404b82d15a86d36cdc38d68658bb287aa883c63d6560be74ec90

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
SignatureDNuymtV90UK12LemqRIdCNv78t7nDx60eNLDzehodqBJAAZ3crde0oujczkic8o4Jx82ji3FkjvGYjFylZpgBg==
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

2026-09-17T11:53:56.973345ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022519
observed 231dd4eef5389016ea8bd5eb0353b09f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:53:56.955218ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022519/manifest.json
observed 2110a980afac404b82d15a86d36cdc38...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:53:56.935817ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022519/publication.md
observed 057672e49a0207e3077230dcbd7978a7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:53:56.917921ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022519/publication.txt
observed cc9ecf98b9b3abd4ff1f59d038315f67...
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.