OpenTechnical

OT-2026-000020113

Publication integrity record

Two cup vacuum gripper, two outlet manifold, common isolation valve, pump fed, supply line pressure sensor, 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-2026-000020113) never changes.

Identity and time

Publication numberOT-2026-000020113 · never reused
Internal UUID01a0ae6f-4378-795b-9beb-544809395afb · 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-2026-000020113
StatusPUBLIC

Content hashes

Canonical texte3cd0f486fe012a664a10c65dced33b6d6863a27c1c01bd41a946776e10a17ee
Markdown8af084b9d39d1d03a47696e7ae310b5b312768e8655bf95e989fd659b84a2a30
PDF
Publication page2a1e8adbf9089e76475e94d3ceb84df7222a178986317900492973d31e922750
Manifestb79500e3f274012eb5b0c4579de050896b950a9380c8ead7a86acd46e2de4ec7

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
SignatureCbCgL/gMkH7i83oqzRhQlNiItlkBS0N8qcKru3HGLrGZK5IzghoOSnrV+9Y5MD+c1HiTbjzVhX+X57GTnCFtDg==
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

2026-09-17T11:56:24.818890ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020113
observed 2a1e8adbf9089e76475e94d3ceb84df7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:56:24.800085ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020113/manifest.json
observed b79500e3f274012eb5b0c4579de05089...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:56:24.780838ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020113/publication.md
observed 8af084b9d39d1d03a47696e7ae310b5b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:56:24.761988ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020113/publication.txt
observed e3cd0f486fe012a664a10c65dced33b6...
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.