OpenTechnical

OT-2026-000087430

Publication integrity record

Two bellows cup vacuum gripper, two zone face, two stage ejector, supply line pressure sensor, 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-2026-000087430) never changes.

Identity and time

Publication numberOT-2026-000087430 · never reused
Internal UUID01a0ae9a-cd50-7c08-99bd-e36555e10a41 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:02:55.852518Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000087430
StatusPUBLIC

Content hashes

Canonical textfd1884dcaca5c828775eebcd5b89a704768b8fee11ed5eb6bc083bba15242159
Markdown2a913b48ca1c387dfa79bb1f1f6510a80d7a3e8decdc2e5798e57fbeac205495
PDF
Publication page73958fa7a383e30f44df8b6cf5c8244b81524aa693ce308ff175d6a5f2267dfb
Manifest8d7c3285d8567eb9214ed624c7a0851269fb024892a5f715575e1cf2619de8d0

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
SignatureA5plqSD9gG/BmUzYLGy9JzdOKQCkvIjf2RG0wPl0EV/jAQ2tedgvC38K56ia/Acfb/yfeBN8vAZ7OqVnE8BSAQ==
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

2026-09-17T09:50:45.083979ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087430
observed 73958fa7a383e30f44df8b6cf5c8244b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:50:45.066574ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087430/manifest.json
observed 8d7c3285d8567eb9214ed624c7a08512...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:50:45.049160ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087430/publication.md
observed 2a913b48ca1c387dfa79bb1f1f6510a8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:50:45.033125ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087430/publication.txt
observed fd1884dcaca5c828775eebcd5b89a704...
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.