OpenTechnical

OT-2026-000043780

Publication integrity record

Six bellows cup vacuum gripper, six 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-2026-000043780) never changes.

Identity and time

Publication numberOT-2026-000043780 · never reused
Internal UUID01a0ae7b-d676-7c53-8df6-ed3cf7046c0e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:29:06.584190Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000043780
StatusPUBLIC

Content hashes

Canonical text476a8318d79442d89be4089ea4a90818b76fd441108e8aa4b63071539f9efbb1
Markdown1e887f03649a3f442210bcba4dd137a66ee4180a3914c2cc6caca9ea68b89712
PDF
Publication pagef7d9807ab5f827e2573812929d3cbfebd80e3640ff9a0b561f5ad4d21b127986
Manifest4b59a349e96abbdf1d3acadb95cfbbb6cf668b964e10994b0f845ff5844f545a

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
Signaturef950nKX5amJOidSa45QkpAb+O3y44oXhUuT37YROQvuHNpBH0rSZCqRYZYeclTC/4hWjKRqucRfHZxnIlywwAw==
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

2026-09-17T11:12:04.470612ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043780
observed f7d9807ab5f827e2573812929d3cbfeb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:12:04.452624ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043780/manifest.json
observed 4b59a349e96abbdf1d3acadb95cfbbb6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:12:04.435415ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043780/publication.md
observed 1e887f03649a3f442210bcba4dd137a6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:12:04.415218ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043780/publication.txt
observed 476a8318d79442d89be4089ea4a90818...
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.