OpenTechnical

OT-2026-000090272

Publication integrity record

Two cup vacuum gripper, two zone face, two 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-2026-000090272) never changes.

Identity and time

Publication numberOT-2026-000090272 · never reused
Internal UUID01a0ae9c-4290-75f0-96c8-3e4b061cd1b5 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:31.390046Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090272
StatusPUBLIC

Content hashes

Canonical textb2f1185099afc989f519e93dbc5fe14f5ba06c302a15978d1738f1b7d1269a6b
Markdowna1bb6911bf281cd9a94757061a20ef8089be9bd78bd2d5482b722cd410f363d3
PDF
Publication paged14bc9687d9abd89e31a4cb959dde790a1eb598f7c3c5d8c31a2b41c23a23152
Manifestdbb3c9757ae233a334d9c32a75acdb0083c06ac71c5e528d3cc3767fe801d6d6

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
Signatureg5a62Lag4TeiKsX1zEpjV+gbcAo2RKx5hJSiJJ/L0S8wf0LqYZMF7xyZNRhzjBSgBAqqPBDSiNOtSSlemSSIBQ==
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

2026-09-17T09:46:21.199944ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090272
observed d14bc9687d9abd89e31a4cb959dde790...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:21.181910ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090272/manifest.json
observed dbb3c9757ae233a334d9c32a75acdb00...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:21.163616ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090272/publication.md
observed a1bb6911bf281cd9a94757061a20ef80...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:21.145625ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090272/publication.txt
observed b2f1185099afc989f519e93dbc5fe14f...
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.