OpenTechnical

OT-2026-000006616

Publication integrity record

Vacuum cup gripper, four zone face, three stage ejector, vented before set down, rubber cups

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-2026-000006616) never changes.

Identity and time

Publication numberOT-2026-000006616 · never reused
Internal UUID01a0a961-781a-7c20-a125-5b43a265ae29 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:42:12.381335Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000006616
StatusPUBLIC

Content hashes

Canonical textb2cfb33d6c583c804c8afdd6c45d6d5fb8c4f57240037bb07751d093c5960ec4
Markdown94678e20e864495b03a8567207f44f304cced26079e2f72889f42c8d3180d2c6
PDF
Publication pageaee882f23af5a969fde23a9b7be56ef596436b41895dd6107d5d621f37567bd5
Manifestea7281bdd3879ab2386659f578fb87b891a095222a85a7bf05f0069a665ab35e

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
SignatureJHDM2CNC7/rhX0+LBUD57onMhChdlk568+AXt1zy4DLtvlpKGOVGqPdM8665PHshV3vHwp/gl0yz6/yz0GvIAg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:47:03Z
batch OT-TS-2026-W38-013 · RFC 3161 token · inclusion proof
root e368e9c5ab06dc5cb1b0682dd54c11f5...

Independent retrieval

2026-09-16T08:50:24.926829ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006616
observed aee882f23af5a969fde23a9b7be56ef5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:50:24.913163ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006616/manifest.json
observed ea7281bdd3879ab2386659f578fb87b8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:50:24.898952ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006616/publication.md
observed 94678e20e864495b03a8567207f44f30...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:50:24.885214ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006616/publication.txt
observed b2cfb33d6c583c804c8afdd6c45d6d5f...
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.