OpenTechnical

OT-2026-000043589

Publication integrity record

Three cup vacuum gripper, three outlet manifold, common isolation valve, plant vacuum fed, sustained 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-2026-000043589) never changes.

Identity and time

Publication numberOT-2026-000043589 · never reused
Internal UUID01a0ae7b-92cf-71b0-9178-a8a0129fb63f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:28:49.254972Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000043589
StatusPUBLIC

Content hashes

Canonical text470e240ac68a17f9e0068983a7f4fba90d3630b215ebacbb38d3af8736eb3d20
Markdown5db2430d2b9bfbfed74ec8ef1a6bfde7dc788c165a0ce18f3b148ccdeab51371
PDF
Publication page82fe2d4d2e0fd103879b7b650c1e98fa8f17b680ea88072f8155dcc0c51d4b18
Manifest90975f52f48226807f816b849d400b237f40a06f7142dfafa46c65970508b641

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
SignatureHydyMTK7DapqNfTqPA+MQ/rtjkgcYMj/FG3M9nPWGjeQb0zUbfMNYT/+h/ywDs8txhe5SCqmREfDLQN3Jc87Dg==
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

2026-09-17T11:12:59.474028ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043589
observed 82fe2d4d2e0fd103879b7b650c1e98fa...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:12:59.453896ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043589/manifest.json
observed 90975f52f48226807f816b849d400b23...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:12:59.433317ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043589/publication.md
observed 5db2430d2b9bfbfed74ec8ef1a6bfde7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:12:59.409926ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043589/publication.txt
observed 470e240ac68a17f9e0068983a7f4fba9...
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.