OpenTechnical

OT-2026-000091107

Publication integrity record

Four cup vacuum gripper, four zone face, common isolation valve, two stage ejector, pressure sensor per zone, sustained blow-off before set-down

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-2026-000091107) never changes.

Identity and time

Publication numberOT-2026-000091107 · never reused
Internal UUID01a0ae9c-f16b-7a76-bc26-07a916669eee · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:16.158740Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000091107
StatusPUBLIC

Content hashes

Canonical text3f522c5ef442286268e20d39d7725717c087880b20a441c5a1812da526f0e760
Markdown0983852ce79956beff46a422587e08e488a7cc81fdc59d98c781484168c0a933
PDF
Publication pageb36a1c09c4c798ad87ce63efefbe46b52aeadfd3fade77b2192e5c680eca885e
Manifest685aec24ada7245d078460ce6d37a2cbf9dbd520beafbf251d56959f3df6625d

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
Signaturerfn6PudRT1IF9uu4UxsD1P5Js/l2Y37FRu8eOk4fRqHeqJnFn+3yk4rtnUKuL33ikDgNESE1ZVdsFE/panPZDA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T09:43:15.478633ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091107
observed b36a1c09c4c798ad87ce63efefbe46b5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:15.461745ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091107/manifest.json
observed 685aec24ada7245d078460ce6d37a2cb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:15.444416ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091107/publication.md
observed 0983852ce79956beff46a422587e08e4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:15.427276ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091107/publication.txt
observed 3f522c5ef442286268e20d39d7725717...
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.