OpenTechnical

OT-2026-000022030

Publication integrity record

Four pad foam vacuum gripper, four outlet manifold, 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-2026-000022030) never changes.

Identity and time

Publication numberOT-2026-000022030 · never reused
Internal UUID01a0ae6f-bb5c-72d8-861c-72ac810c8140 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:53.201585Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000022030
StatusPUBLIC

Content hashes

Canonical textade5ca579c47cfc68739fcddda13a8a3a29fdfc4ad202e1f6fd0ab7bf531ea3a
Markdown41109809625e7f6adfbba6ef96a45200fb80e2265dac86296f5570f85c18a456
PDF
Publication page2db72307b0ccd6d662e4bf3c6f601190556b6e3f6dd118fdf793490b6bfff581
Manifest130028a93bb8a1b9f1482f6572f6121a20a1ddfcdf10d458c71f30ce71330e4a

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
SignaturexFlr55DXrzD3ZqWTcJcsYClK9PSJzTdBzlmrUkTqH6eGbrJ/yfgmMl88sw+RRzDE/xL/jXZrFz0rbLOGVY2VDw==
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

2026-09-17T11:54:43.000207ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022030
observed 2db72307b0ccd6d662e4bf3c6f601190...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:54:42.984058ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022030/manifest.json
observed 130028a93bb8a1b9f1482f6572f6121a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:54:42.966757ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022030/publication.md
observed 41109809625e7f6adfbba6ef96a45200...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:54:42.948445ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022030/publication.txt
observed ade5ca579c47cfc68739fcddda13a8a3...
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.