OpenTechnical

OT-2026-000022909

Publication integrity record

Three cup vacuum gripper, three outlet manifold, two stage ejector, sustained 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-2026-000022909) never changes.

Identity and time

Publication numberOT-2026-000022909 · never reused
Internal UUID01a0ae70-46eb-7ab7-b98a-4f507f7800e2 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:16:28.929798Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000022909
StatusPUBLIC

Content hashes

Canonical textf7ac9a97a547480d05fa9a252abc8dff8f1db5af577dafacf1f9c54fea470861
Markdownbf33f76ebf2f3be9f7ab3921150eb654e763d65cbecbca009f06238b6a13e769
PDF
Publication page40c80eb86aa426675c74efb61c157b4fe56e46b7160b4837017866216188bb9b
Manifest056c39eb12a0e93b48d725ed5bd079b44232d6e22b40f38ca9d78a73234bda32

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
Signaturegch16TlArdYlbhCaSC87JCct1EZuP5BGbq0A/3cmR3BXynKmd7f2tE/Rq80awOtMzXYz9dS9Y1ByRFxNwTDZCw==
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

2026-09-17T11:52:28.994752ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022909
observed 40c80eb86aa426675c74efb61c157b4f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:52:28.974758ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022909/manifest.json
observed 056c39eb12a0e93b48d725ed5bd079b4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:52:28.955856ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022909/publication.md
observed bf33f76ebf2f3be9f7ab3921150eb654...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:52:28.937694ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022909/publication.txt
observed f7ac9a97a547480d05fa9a252abc8dff...
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.