OpenTechnical

OT-2026-000013994

Publication integrity record

Six pad foam vacuum gripper, six outlet manifold, common isolation valve, pump fed, 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-2026-000013994) never changes.

Identity and time

Publication numberOT-2026-000013994 · never reused
Internal UUID01a0ae6d-8dea-71e9-808e-567e926c5557 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:30.489074Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000013994
StatusPUBLIC

Content hashes

Canonical textfa1f3e54295fef8d75df4a8f832ddf39baee904055f7ca96b9a9ffb3fdbdcd79
Markdown59b044e739b68021a977a907555b647d475390c99cfc21db0878404a6b597eea
PDF
Publication pagebe1f0a85f3a2dcb2feb35513a70b6cf0352d2cab724553384288041c7e0039bb
Manifestea574f69b028aa9f31f06c0ebe5e19c5333705805fc16b0567abcda59779f55c

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
SignatureYp5rxIGD7M9Ncw9WY/Wg3ObCAp2xgF5qBRpU8ti+Fe1xPUyvTfHaYfo+YDJHq7mYTlnxm2S6CNdTRID9wl4tBg==
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

2026-09-17T12:09:12.798657ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013994
observed be1f0a85f3a2dcb2feb35513a70b6cf0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:12.777453ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013994/manifest.json
observed ea574f69b028aa9f31f06c0ebe5e19c5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:12.758050ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013994/publication.md
observed 59b044e739b68021a977a907555b647d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:12.738852ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013994/publication.txt
observed fa1f3e54295fef8d75df4a8f832ddf39...
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.