OpenTechnical

OT-2026-000012057

Publication integrity record

Three cup vacuum gripper, three outlet manifold, 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-2026-000012057) never changes.

Identity and time

Publication numberOT-2026-000012057 · never reused
Internal UUID01a0ae6d-1943-742f-8949-3db8f83866c2 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:00.631271Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000012057
StatusPUBLIC

Content hashes

Canonical text6b5ed3418c5c6f1e973483a2e5076055ee90cf092a50782a68e7b7ad25a89a81
Markdown73aff5822de0224054abadf9fa22d165ed19242ec22f3ca65132da53343b8deb
PDF
Publication pagee71ff9b6779557773e1c9847d2cab897fd8e08475a6dd0b92d21b91d80e6ef94
Manifest9d3d656644917418881f172ffd65b71bec727a65becb96a73f0a4f7584559df5

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
SignatureE6jDMSO8vWCyrGypIQt1XgWT+x/8bXHsEVcruWKpRqLo3GlgtFZVWIBl/GCcx+imSqYLZbOs3/D8xpILWbfsDA==
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

2026-09-17T12:12:56.276260ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012057
observed e71ff9b6779557773e1c9847d2cab897...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:12:56.257921ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012057/manifest.json
observed 9d3d656644917418881f172ffd65b71b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:12:56.236919ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012057/publication.md
observed 73aff5822de0224054abadf9fa22d165...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:12:56.217764ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012057/publication.txt
observed 6b5ed3418c5c6f1e973483a2e5076055...
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.