OpenTechnical

OT-2026-000048687

Publication integrity record

Four cup vacuum gripper, four zone face, common isolation valve, pump fed, pressure sensor per zone, 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-2026-000048687) never changes.

Identity and time

Publication numberOT-2026-000048687 · never reused
Internal UUID01a0ae80-c32b-77b0-be87-aac31e5406b5 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:34:29.321882Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000048687
StatusPUBLIC

Content hashes

Canonical textb3853f2cb45dd6d219fbf55c2e1930b87a1a0bfcdbc15ee32cc62be3c23f725e
Markdown7cbaf7b0098ea0b10f5fc381fc2880feef5479452d1ebc6b181da1eaa75f3d9a
PDF
Publication paged02c05ebd6c9c43368a6f484bbb40ef854b6ad0f29aba0207268209aaaf7b529
Manifestdf6001118797835b3e48d8d4c906bc942d6b244182f830d60d43dcef9f3f07ad

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
SignatureIt6l6x4PEsKmY4TLPvblbDoPexKDOB4kWEKagOZjnW+569u+NwL3QUXBtIggI7Gh01bphXPNg1bRlgMfHMigCQ==
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

2026-09-17T11:04:18.947138ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048687
observed d02c05ebd6c9c43368a6f484bbb40ef8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:04:18.929049ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048687/manifest.json
observed df6001118797835b3e48d8d4c906bc94...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:04:18.908698ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048687/publication.md
observed 7cbaf7b0098ea0b10f5fc381fc2880fe...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:04:18.888524ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048687/publication.txt
observed b3853f2cb45dd6d219fbf55c2e1930b8...
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.