OpenTechnical

OT-2026-000013897

Publication integrity record

Six cup vacuum gripper, six outlet manifold, common isolation valve, plant vacuum fed, pulsed blow-off 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-2026-000013897) never changes.

Identity and time

Publication numberOT-2026-000013897 · never reused
Internal UUID01a0ae6d-8dea-7517-bc2b-39bacaaed216 · 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-2026-000013897
StatusPUBLIC

Content hashes

Canonical text98621cd598de863ed0121e2c241c24c0d49333ef7129364573d3e674e4e61851
Markdowneb156dbccba63ba5db98d37e90a174c650d0bb167f2d6eb818560bd2c7d0618a
PDF
Publication page9cda3b5f9a80dfe8e503de3da88f9c87cfed826d530e0d29c684f92c0a30d689
Manifest967d99287536912683a446622771500cb27e71e04bf947d64e3f9316a7d44435

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
SignatureKjkndj3EVnhvshsXb2StFMgodMOAJ6r0zW3iYaMANany6eZ5oGpJ36wpcfiN3Xu85G3534DI59+QvE6w9ZqaDQ==
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

2026-09-17T12:09:01.348795ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013897
observed 9cda3b5f9a80dfe8e503de3da88f9c87...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:01.328858ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013897/manifest.json
observed 967d99287536912683a446622771500c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:01.307642ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013897/publication.md
observed eb156dbccba63ba5db98d37e90a174c6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:01.285821ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013897/publication.txt
observed 98621cd598de863ed0121e2c241c24c0...
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.