OpenTechnical

OT-2026-000022225

Publication integrity record

Four cup vacuum gripper, four outlet manifold, common isolation valve, single stage ejector, 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-2026-000022225) never changes.

Identity and time

Publication numberOT-2026-000022225 · never reused
Internal UUID01a0ae6f-f4fc-745f-b7c6-cc5b4138f929 · 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-2026-000022225
StatusPUBLIC

Content hashes

Canonical text4a3e029d86ee37be7ac9f86c0c401f1ef33c36a1d67f4216cbfbba5c98b8176e
Markdown4f06d2c9a3326f04358429d1debd4be473c69f688cacf017e792c3c3119b66e3
PDF
Publication paged479b7514061e6d05e61b214bc80fb1307b308527aba92526e004ee52f054428
Manifest38a2672e43bbc8f5e3796cec7737daf4cc7f9d8135810d2c1a077d8e72614f42

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
Signatureqi54nGj31TMSig8nbTfqlEkREjZum5SmsHXkGp4Wv6MbmF4MN+g4XpurfRSEc7x2W13v6t9iahkBTjjYjH+9Dw==
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

2026-09-17T11:52:54.898107ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022225
observed d479b7514061e6d05e61b214bc80fb13...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:52:54.882964ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022225/manifest.json
observed 38a2672e43bbc8f5e3796cec7737daf4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:52:54.865746ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022225/publication.md
observed 4f06d2c9a3326f04358429d1debd4be4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:52:54.843364ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022225/publication.txt
observed 4a3e029d86ee37be7ac9f86c0c401f1e...
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.