OpenTechnical

OT-2026-000074706

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, common isolation valve, plant vacuum fed, supply line pressure sensor, vented 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-2026-000074706) never changes.

Identity and time

Publication numberOT-2026-000074706 · never reused
Internal UUID01a0ae93-ac2b-74fe-a34b-ece5b5b7e252 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:55:08.693295Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000074706
StatusPUBLIC

Content hashes

Canonical textb9263b0dd2090a9c47367106482b4f8e3294255780ace088a8caf096cea165fc
Markdown7e2b6f858510219eb6ca3e4ae5890cd27fae5571a1617ce4d31efc83b65ec333
PDF
Publication page1c8c2cef1ef56fb2978fd1438901444ac799fd527efed8ad808ed8ad3bc4103b
Manifesteb47b73d091ce26f73fbfae032594251bb455eebcef6a394116453157a3854e4

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
SignaturefHJPBzquFWRNcr65R9qbokJ0Rtmi+0RNt2AzOa9XyTfwUCQiN64xm8S2msJszumUGl0yuqBXWXDDKIbnCPmKDA==
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

2026-09-17T10:18:17.894479ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074706
observed 1c8c2cef1ef56fb2978fd1438901444a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:18:17.877193ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074706/manifest.json
observed eb47b73d091ce26f73fbfae032594251...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:18:17.858406ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074706/publication.md
observed 7e2b6f858510219eb6ca3e4ae5890cd2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:18:17.839891ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074706/publication.txt
observed b9263b0dd2090a9c47367106482b4f8e...
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.