OpenTechnical

OT-2026-000074188

Publication integrity record

Two bellows cup vacuum gripper, two outlet manifold, pump fed, supply line pressure sensor, vented 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-2026-000074188) never changes.

Identity and time

Publication numberOT-2026-000074188 · never reused
Internal UUID01a0ae93-7178-7363-8f0f-92264b95ef63 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:53.574555Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000074188
StatusPUBLIC

Content hashes

Canonical textfc309e769f04736c48f45f09744db773791db203a52054f6b8bfc04c54fa8662
Markdownb5f101bbca24e2950bf0edeaafd6db3cbd5126524382bb6959cfba0cfb7e9a21
PDF
Publication page4cf8ff3f133f6bf0ba95183c201b488c08dcb84e2e033c26da48c61f69c0337a
Manifest72b99584d4f563ccb5db8f26c89d79ba39331e2ab62bdb6e692545746f2249f1

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
SignatureSyUlY9aZUm6NVHnkhVSjVh7dX8qI7RrR13ElvTsIZc9gJAsjQveri8FSFuVzs9DL9UOwvfkW16nZ1tELp0ziAw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T10:19:02.487283ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074188
observed 4cf8ff3f133f6bf0ba95183c201b488c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:02.469370ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074188/manifest.json
observed 72b99584d4f563ccb5db8f26c89d79ba...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:02.451787ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074188/publication.md
observed b5f101bbca24e2950bf0edeaafd6db3c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:02.433541ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074188/publication.txt
observed fc309e769f04736c48f45f09744db773...
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.