OpenTechnical

OT-2026-000014921

Publication integrity record

Four cup vacuum gripper, four outlet manifold, common isolation valve, plant vacuum fed, 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-2026-000014921) never changes.

Identity and time

Publication numberOT-2026-000014921 · never reused
Internal UUID01a0ae6d-d095-79a2-bb35-5805ed2c3677 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:47.560717Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000014921
StatusPUBLIC

Content hashes

Canonical textf72e38b87a3d3ea4e4751ad69bb9d6914bd332fa19c7cc00f33a078d1b587abc
Markdown1a8b89639479c26db502170b0d36ac177dbdddc397cca065d8dcd19556dd1a9d
PDF
Publication page33b14ef85fc41f3d32a754524c498fd9fecd9117ce0e26ab9e5b62a0056c3e16
Manifestdf8d76cd0bfe7f9f04fbfb22dd3a6731767d30f353d68695dcd82e5df60542f8

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
SignaturerJbpD5+EZFctWAYkx6dWUWX8Ra9vYVzHwlAvy8844XZ1319dw1x9zisqngtdSD7o2ToY8I1pf0e3w68dFCbwCA==
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

2026-09-17T12:06:51.628816ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000014921
observed 33b14ef85fc41f3d32a754524c498fd9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:06:51.611180ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000014921/manifest.json
observed df8d76cd0bfe7f9f04fbfb22dd3a6731...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:06:51.592584ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000014921/publication.md
observed 1a8b89639479c26db502170b0d36ac17...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:06:51.575158ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000014921/publication.txt
observed f72e38b87a3d3ea4e4751ad69bb9d691...
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.