OpenTechnical

OT-2026-000022781

Publication integrity record

Two cup vacuum gripper, two outlet manifold, pump fed, 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-2026-000022781) never changes.

Identity and time

Publication numberOT-2026-000022781 · never reused
Internal UUID01a0ae70-46ea-75d5-9ed1-fb177f7bd03d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:16:28.929798Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000022781
StatusPUBLIC

Content hashes

Canonical text7dbcff5491f2ad08c0bffc24cde5208d7a64444fd92a2236d4a2c0e84c63e691
Markdown3ea5e9f7f5cb97e02b51d331a102ce7785688a00ef8d4c73b24a1f8f69799ce4
PDF
Publication page0cc50b34029ef33cd6cf1a478d998532d7ed8fbadaa8b54ed14e1e5da9777176
Manifest2c8a3132ce43f2b4dc319de8760d4acbb4f28d211cb31c1609849ba5635568ca

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
Signature3vGRyEIPb+Q5NcTEcGk2iDGvXrpHNJGrcVmxfDvFgh4507HiR3/7JXl/Gwl3Jg5I1SdjYjzQu0rPpl6MwVyyDw==
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

2026-09-17T11:52:17.944458ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022781
observed 0cc50b34029ef33cd6cf1a478d998532...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:52:17.926536ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022781/manifest.json
observed 2c8a3132ce43f2b4dc319de8760d4acb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:52:17.908317ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022781/publication.md
observed 3ea5e9f7f5cb97e02b51d331a102ce77...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:52:17.890754ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022781/publication.txt
observed 7dbcff5491f2ad08c0bffc24cde5208d...
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.