OpenTechnical

OT-2026-000032905

Publication integrity record

Four cup vacuum gripper, four outlet manifold, common isolation valve, 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-2026-000032905) never changes.

Identity and time

Publication numberOT-2026-000032905 · never reused
Internal UUID01a0ae75-4842-7810-bfa8-821dea72eb03 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:21:57.065765Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000032905
StatusPUBLIC

Content hashes

Canonical textd600cd0decc23f99b0201ce42b2918f2a44b4b8b11e09ccf6f4521a362f10f3b
Markdown52bd6fbf11179b4f9325d77c11016d870df0fb9e576143770cadf2c76875b9a9
PDF
Publication paged7963e9fdcf7ee977b4f124d2100e9376e33e37fa7de11f4963ebbec71d1c26c
Manifest4e232c75fd8695b96e00d0b11eeb93a4e37ab135aff3ab6e22f038e7c42ffc71

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
SignatureO2q3jqbQkxESfwk6+tqSlrBbvoQWyhwH71vNbuPSsEBxGFaCBG3YW1vGhUfjTPwLguNYwRemVTBqtXk67CX5Ag==
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

2026-09-17T11:32:29.676065ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000032905
observed d7963e9fdcf7ee977b4f124d2100e937...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:32:29.658566ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000032905/manifest.json
observed 4e232c75fd8695b96e00d0b11eeb93a4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:32:29.638762ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000032905/publication.md
observed 52bd6fbf11179b4f9325d77c11016d87...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:32:29.612042ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000032905/publication.txt
observed d600cd0decc23f99b0201ce42b2918f2...
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.