OpenTechnical

OT-2026-000049413

Publication integrity record

Three cup vacuum gripper, three outlet manifold, plant vacuum fed, manifold pressure sensor, sustained blow-off after 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-2026-000049413) never changes.

Identity and time

Publication numberOT-2026-000049413 · never reused
Internal UUID01a0ae81-8f7b-7444-b8a8-5799ce359e94 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:35:21.728203Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000049413
StatusPUBLIC

Content hashes

Canonical text5481dd932c84c0de8ff448d87df3f7dbc313de08f766293ca8552b742d36f061
Markdown587902759bc74defdf7e55e7ff61bc8bc757b6c9f7d7b627d7d25c9bbe20b557
PDF
Publication page7306e482ebb432453b93867b61e040f2de5b1b57c2137e9bd3c024f78b7ed9df
Manifestd6db8285a1620012c997299287e211f88ce03df5bb24b60d0488798f2b01fd3b

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
Signaturec1KVP7sE5Yv0n9qAvqnKH0CL1ZUl1TKz8naeZ4xv3Dcq+IohAEx6wjAgK1c990e39gM6CmFyg0wqYR2rdp3cDg==
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

2026-09-17T11:02:14.273143ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049413
observed 7306e482ebb432453b93867b61e040f2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:14.254046ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049413/manifest.json
observed d6db8285a1620012c997299287e211f8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:14.235058ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049413/publication.md
observed 587902759bc74defdf7e55e7ff61bc8b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:14.213032ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049413/publication.txt
observed 5481dd932c84c0de8ff448d87df3f7db...
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.