OpenTechnical

OT-2026-000033573

Publication integrity record

Four cup vacuum gripper, four outlet manifold, plant vacuum fed, pulsed blow-off after 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-2026-000033573) never changes.

Identity and time

Publication numberOT-2026-000033573 · never reused
Internal UUID01a0ae75-a38f-722a-81ac-78acc71dd134 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:22:20.325649Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000033573
StatusPUBLIC

Content hashes

Canonical textb92ec16d869baedb2107db6666c5525e2e7069756ebc7db131dfb62e3788cdb0
Markdown130a7500d3629eca49471c456e01832e1cad1d8996824b2ada565fd1c4123178
PDF
Publication page3c1fc3d1ba79611962aa9eb94e498d6dc5a6d348177dc27a86c603e87394b38d
Manifest1c8cd04e1045de46b0dd07ad6b33fac7eaf22258259e2a93b88ef21b5f604122

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
SignaturePKjETTejant0qlcM5hqH+MO0Adfsz3WMN79ROVCX1OsihOW3Ae0FUQ3RbvT0/KZzGSB95iA5KaQqv6UCbiHrCg==
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

2026-09-17T11:31:26.653186ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000033573
observed 3c1fc3d1ba79611962aa9eb94e498d6d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:31:26.631514ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000033573/manifest.json
observed 1c8cd04e1045de46b0dd07ad6b33fac7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:31:26.611485ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000033573/publication.md
observed 130a7500d3629eca49471c456e01832e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:31:26.592753ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000033573/publication.txt
observed b92ec16d869baedb2107db6666c5525e...
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.