OpenTechnical

OT-2026-000021055

Publication integrity record

Three cup vacuum gripper, three zone face, per zone isolation, plant vacuum fed, pulsed 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-2026-000021055) never changes.

Identity and time

Publication numberOT-2026-000021055 · never reused
Internal UUID01a0ae6f-65e5-7de9-a3da-1a8dc4f75fec · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:31.316024Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000021055
StatusPUBLIC

Content hashes

Canonical text84ff773c25fccf962c5cd4e5548243f301491e06e287d337ee23c2e59f751438
Markdowndc9d6f3ae8a5edd7f982faf5e2aafd2114ceb09b05b23f8505ad62573c871ace
PDF
Publication page046f489dbdb4326811c43d9c3ba733ba4eede18ce1e55b4cc88f3cd97cd3043b
Manifest0ae3b79f8c4711a5468839cabbc4d4700f140972ea1d2541589c3ebf4a481c94

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
SignatureP/sneGn3/JGJc34KEWeZxK3RoBSj/EKIQSPzy17QOKZWdcSs2ZPnxIcia6Nhts5ufltuLTO7+izxRRppDm/9Cw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:56:11.323886ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021055
observed 046f489dbdb4326811c43d9c3ba733ba...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:56:11.304570ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021055/manifest.json
observed 0ae3b79f8c4711a5468839cabbc4d470...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:56:11.282477ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021055/publication.md
observed dc9d6f3ae8a5edd7f982faf5e2aafd21...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:56:11.264818ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021055/publication.txt
observed 84ff773c25fccf962c5cd4e5548243f3...
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.