OpenTechnical

OT-2026-000020247

Publication integrity record

Four bellows cup vacuum gripper, four zone face, pump fed, pulsed blow-off before set-down

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-2026-000020247) never changes.

Identity and time

Publication numberOT-2026-000020247 · never reused
Internal UUID01a0ae6f-4379-79fd-ae1f-c2891db8f6cc · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:22.507199Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000020247
StatusPUBLIC

Content hashes

Canonical text262326ca061ef569150431f32fbf7a189088e4a22f2f89d4b5944cd3bf238bed
Markdown88692e9a8c41533b50e7bc447d83245946d43f7e115466e22dd0f90248f3050c
PDF
Publication page244031e47f52d7c2c244b6b5d9506375279913948afda0269dc50ba206796a5c
Manifest9f88703d37cb11129832c12a4099c06c1af124b0f5589fb1c886db255124fc6a

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
SignaturerUKNfr5cZaJpY3Ic07p9LaSMo0+qsm+Z0TGlsK3zeMDHOp5pyELVlB3smwW/xmeQ6QjXHbis1LM8SgBagKxZAA==
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

2026-09-17T11:56:35.544561ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020247
observed 244031e47f52d7c2c244b6b5d9506375...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:56:35.524912ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020247/manifest.json
observed 9f88703d37cb11129832c12a4099c06c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:56:35.504847ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020247/publication.md
observed 88692e9a8c41533b50e7bc447d832459...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:56:35.484530ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020247/publication.txt
observed 262326ca061ef569150431f32fbf7a18...
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.