OpenTechnical

OT-2026-000013588

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, single stage ejector, 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-2026-000013588) never changes.

Identity and time

Publication numberOT-2026-000013588 · never reused
Internal UUID01a0ae6d-6fcb-78e0-b804-25c84e95e8bb · 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-2026-000013588
StatusPUBLIC

Content hashes

Canonical text0865588fe1cfdee6b7d01625c060e1dbfc278c13c400c15ff2ff2fd172511850
Markdown867af923f1f5d60837a57df45a375a8e292ff78356dcc26671fb49d9976f3b20
PDF
Publication page5ed62905d89da437d8348faa6e6eae08e3da19a11e4355f9a08f9a99dddc6a7f
Manifest908841dcda75b084be368e11446734a28a08e306205f195a6cbd70f1d53d6817

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
SignatureJZDjI0D8Xiv+PfimFpwlTbhhlkxoO9qasdJTrmC2QS9TUM+bEuMsrRFEpv2WeIiOqCgB3PJ30wA5zDa+ikSCCw==
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

2026-09-17T12:10:08.370825ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013588
observed 5ed62905d89da437d8348faa6e6eae08...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:08.350579ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013588/manifest.json
observed 908841dcda75b084be368e11446734a2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:08.327738ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013588/publication.md
observed 867af923f1f5d60837a57df45a375a8e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:08.307620ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013588/publication.txt
observed 0865588fe1cfdee6b7d01625c060e1db...
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.