OpenTechnical

OT-2026-000021476

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, common isolation valve, two stage ejector, 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-2026-000021476) never changes.

Identity and time

Publication numberOT-2026-000021476 · never reused
Internal UUID01a0ae6f-865d-7ecf-8574-2e97aed792a7 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:39.631048Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000021476
StatusPUBLIC

Content hashes

Canonical textff66db0ec5ebf2b92290e934682fbadd1a7e72630a4f4c6f668621251456e522
Markdownbfc12e6a05221013a960f7900efc2a0b6c55309df936102adac53f3f1703b20d
PDF
Publication page878ddc2fc6d7b27ae7984a156161e400df376004b8f642956a9e0b812a27d433
Manifest9343369d637dfac1971fdef198275722513cde299ff095ecb2efec489a310b8a

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
SignaturevFy6wEfUamtcuYZXuaNYViSW6Oyxc9LBtljyaVI+gnRgO14ZJSXn5fk3qhklza2lOdCTNf6RkaKKgkWki3JiAg==
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

2026-09-17T11:55:23.525877ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021476
observed 878ddc2fc6d7b27ae7984a156161e400...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:23.509967ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021476/manifest.json
observed 9343369d637dfac1971fdef198275722...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:23.491102ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021476/publication.md
observed bfc12e6a05221013a960f7900efc2a0b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:23.472183ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021476/publication.txt
observed ff66db0ec5ebf2b92290e934682fbadd...
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.