OpenTechnical

OT-2026-000030880

Publication integrity record

Two bellows cup vacuum gripper, two outlet manifold, common isolation valve, plant vacuum fed, 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-2026-000030880) never changes.

Identity and time

Publication numberOT-2026-000030880 · never reused
Internal UUID01a0ae74-3fb5-7174-b0a2-5103bde92cd2 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:20:49.275361Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000030880
StatusPUBLIC

Content hashes

Canonical text399c357da71cfd6c3e595b0c62295ee495c0d94f4fdabd623628abc5d917e8ac
Markdown4096bf4ca59e919b04ee498eb10edf1286b1c62ef198990006e6520d540da900
PDF
Publication page3114106aaffc226663e87aa33e1e711511374c0295580aba65d1cd3d0c63e6f8
Manifestabbed189e602e7356270fd5efa72a56b5cbe793c334784c2606113fd4ea8b3dd

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
SignatureQ5TnbpxyOlN0vN/X9jnkgE23aue9fsQuyg+J55H/P0z30G+5uDDmQZFjiytXfQ5SDENcN8yD8eBOXQXYTktqBA==
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

2026-09-17T11:36:51.567565ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030880
observed 3114106aaffc226663e87aa33e1e7115...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:51.549827ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030880/manifest.json
observed abbed189e602e7356270fd5efa72a56b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:51.531326ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030880/publication.md
observed 4096bf4ca59e919b04ee498eb10edf12...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:51.513909ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030880/publication.txt
observed 399c357da71cfd6c3e595b0c62295ee4...
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.