OpenTechnical

OT-2026-000013297

Publication integrity record

Four cup vacuum gripper, four outlet manifold, three stage ejector, 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-2026-000013297) never changes.

Identity and time

Publication numberOT-2026-000013297 · never reused
Internal UUID01a0ae6d-6fc9-730f-8734-f7e8870aea5b · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:22.837188Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000013297
StatusPUBLIC

Content hashes

Canonical text2031fd323f44993012b6f6bdb39ea2483b14af27a9e256dac249a3d92d87980a
Markdown4ae5c321dd2a2d0ba2b57f4e239da24befec07683c3b323c868f54df1d5cd74b
PDF
Publication page93c75d38c0a8bfb6e8669c7de02740ec7bafff631ec5a3648142f851cc592fe1
Manifest79eafc5f8e409266dc8c8efef4f4aa2b1903dc89f9d7768784e931220f32e3ee

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
Signatureb2jqcDyMmzFsy4WTzYycLW8xlBJ+NsZ7CVgN/hNWM0e2hvBZdTJwEI5NrTQNoImIL2fVFOCsdOYPpNJ4Ck6ABg==
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

2026-09-17T12:09:43.351822ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013297
observed 93c75d38c0a8bfb6e8669c7de02740ec...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:43.333369ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013297/manifest.json
observed 79eafc5f8e409266dc8c8efef4f4aa2b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:43.313438ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013297/publication.md
observed 4ae5c321dd2a2d0ba2b57f4e239da24b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:43.295445ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013297/publication.txt
observed 2031fd323f44993012b6f6bdb39ea248...
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.