OpenTechnical

OT-2026-000047867

Publication integrity record

Two cup vacuum gripper, two 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-2026-000047867) never changes.

Identity and time

Publication numberOT-2026-000047867 · never reused
Internal UUID01a0ae7f-c421-721c-a20d-3bf211edd298 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:33:24.028554Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000047867
StatusPUBLIC

Content hashes

Canonical textcf6f1e26c259ac8636d8c2a0349f19e03274b95a07385ed755349ff416592189
Markdown65a8bcea9f92cb5da4e84d2a5073fe4ca69ce9615aa5dccc2c5febdc11d70185
PDF
Publication pagea6b6b61ca095bdea82166904881f7baad770cc3b5ecd723b03da4653e300c33c
Manifestf3d03e10b8ff7a00afa20360b7768e71c5ee93062be056decfc6093fc58069af

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
SignatureJ2avnBluyypkJPqxOntXY6MYgR5BPQeal2CiAJ5T9//05Bdty2dSR5oG5qiaQ8Zy/XKORIsvTUj45xiEOsngDw==
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

2026-09-17T11:05:47.628375ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047867
observed a6b6b61ca095bdea82166904881f7baa...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:47.607597ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047867/manifest.json
observed f3d03e10b8ff7a00afa20360b7768e71...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:47.588201ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047867/publication.md
observed 65a8bcea9f92cb5da4e84d2a5073fe4c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:47.566714ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047867/publication.txt
observed cf6f1e26c259ac8636d8c2a0349f19e0...
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.