OpenTechnical

OT-2026-000090658

Publication integrity record

Three bellows cup vacuum gripper, three zone face, per zone isolation, single stage ejector, pressure sensor per zone, 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-2026-000090658) never changes.

Identity and time

Publication numberOT-2026-000090658 · never reused
Internal UUID01a0ae9c-7f30-7592-8794-2c9781a75205 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:46.997728Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090658
StatusPUBLIC

Content hashes

Canonical textdb6caad8599b91cfc03fca9f59690216db89c702f462c653d684c8fcd17cd9a4
Markdownf445728e57e3728dbc45310444fe37c9f7cff22553ce956e4c45ff6ecdcf1bdd
PDF
Publication page4ec298af6c5fbbf47cbc82d3c7733d1666608a6b83b8c0c59950d1a3392ba70d
Manifest6b63a8827db98c5f3996a5f8ed06d5c717f0d944d253d7b5c1996d61050f4056

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
SignaturemIWtYOty3RKwzlDDBdnI6fLUBkC4IILv0iIBjv0qClCQi2zgADFGTyi78OhXuOkswFergzdajtcFnNZirBp/BA==
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

2026-09-17T09:44:50.986078ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090658
observed 4ec298af6c5fbbf47cbc82d3c7733d16...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:50.968052ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090658/manifest.json
observed 6b63a8827db98c5f3996a5f8ed06d5c7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:50.949421ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090658/publication.md
observed f445728e57e3728dbc45310444fe37c9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:50.930075ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090658/publication.txt
observed db6caad8599b91cfc03fca9f59690216...
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.