OpenTechnical

OT-2026-000090736

Publication integrity record

Three bellows cup vacuum gripper, three zone face, per zone isolation, pump fed, 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-2026-000090736) never changes.

Identity and time

Publication numberOT-2026-000090736 · never reused
Internal UUID01a0ae9c-7f31-7e89-bddc-95d8d83dadd0 · 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-2026-000090736
StatusPUBLIC

Content hashes

Canonical text8462b4d3ee31028d7c7008ec8794e714d3e925c6fb4a3db208e29d7cc80e30ad
Markdownfc84a5a1f5b04648b6b375a92b29fa5ca34c22eea0a0a5f8190703429bce9706
PDF
Publication page834aa7d8988cdccedaae8d4783cdf80fe2d36a959cfae9f23480d446b6fb7abd
Manifestb04e0d85bbfc5e76511da6b3f2979ecba2754a180e2fc3e1aab1df73be9418b3

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
SignaturegXqNXREGZplz+Jfvrmv9UVgm+7f0EI66VSWlsypQm5bHrWVdY3rR4PxOvOPv4ghvxGftEOJWqfvNt0rZQoTwBA==
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

2026-09-17T09:44:55.520350ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090736
observed 834aa7d8988cdccedaae8d4783cdf80f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:55.502732ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090736/manifest.json
observed b04e0d85bbfc5e76511da6b3f2979ecb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:55.485449ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090736/publication.md
observed fc84a5a1f5b04648b6b375a92b29fa5c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:55.457904ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090736/publication.txt
observed 8462b4d3ee31028d7c7008ec8794e714...
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.