OpenTechnical

OT-2026-000050581

Publication integrity record

Four cup vacuum gripper, four outlet manifold, three stage ejector, vented 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-2026-000050581) never changes.

Identity and time

Publication numberOT-2026-000050581 · never reused
Internal UUID01a0ae82-5c49-715c-8116-65ac67c31cb7 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:36:14.042293Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000050581
StatusPUBLIC

Content hashes

Canonical text82ceb12628a8f358bfe378ef4b8ad05e87bfefc759af01170a6cce1bc86a199f
Markdowndfd3f05956d015dc3ea49b4ec7b2056234a214489357f4923e5b457e92982469
PDF
Publication page6c9f5f7c3a0aa84b32681bd3ebc8b21a7a8747e9d4a43e79d27454f45ef001d5
Manifeste2f91176f5ed4bf8409e9c05dfe2734d226ef2ed1acbd1a601f222f89df786a1

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
SignatureGZdygXBjUpqmQztldjpiiGt7JpkyHVZpOkiE22aedVoU4JSMLnRM6MiE47ijKqA3CD8vZGTBunYkpsIbkKesAA==
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

2026-09-17T11:01:41.000653ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050581
observed 6c9f5f7c3a0aa84b32681bd3ebc8b21a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:01:40.982065ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050581/manifest.json
observed e2f91176f5ed4bf8409e9c05dfe2734d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:01:40.965875ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050581/publication.md
observed dfd3f05956d015dc3ea49b4ec7b20562...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:01:40.948018ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050581/publication.txt
observed 82ceb12628a8f358bfe378ef4b8ad05e...
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.