OpenTechnical

OT-2026-000067039

Publication integrity record

Foam pad vacuum gripper, three zone face, common isolation valve, pump fed, pressure sensor per zone, 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-2026-000067039) never changes.

Identity and time

Publication numberOT-2026-000067039 · never reused
Internal UUID01a0ae8f-14fe-7e05-ab9c-29af1969973e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:50:07.760615Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000067039
StatusPUBLIC

Content hashes

Canonical texteac419118dd770687f5a36ee637362931c33cc9eb1a7336b42cdeead080a004d
Markdown20e7afc9506bd7b8d2dc6958716c72b4a15326a5a0f19b578e601ad15be2ed61
PDF
Publication page3dfe1430ae8ac145f13fe8484c9a18acdce775c2e79d6b26750b435b36a75137
Manifest29008c5c0fc3234966fd527557bc3254f391896dffcdbb0ad96d0f578aff59ec

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
SignatureU4tTGiV6wXybatCU3L+m/KnyPSa7fnwkuw3p1k/X9jMoBxlAPBaNcChEpUUOSWLpng8IaiOhoo1WB4pq6RGBCg==
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

2026-09-17T10:32:17.356499ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067039
observed 3dfe1430ae8ac145f13fe8484c9a18ac...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:32:17.335329ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067039/manifest.json
observed 29008c5c0fc3234966fd527557bc3254...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:32:17.313888ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067039/publication.md
observed 20e7afc9506bd7b8d2dc6958716c72b4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:32:17.294543ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067039/publication.txt
observed eac419118dd770687f5a36ee63736293...
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.