OpenTechnical

OT-2026-000029940

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, pump fed, sustained 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-2026-000029940) never changes.

Identity and time

Publication numberOT-2026-000029940 · never reused
Internal UUID01a0ae73-ac48-775f-933e-5d7f23a22c41 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:20:11.501096Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000029940
StatusPUBLIC

Content hashes

Canonical textb5b4a7f3fee499792497486d116950e602f07557954658ec4b361686d8625618
Markdown49491c7c0f91a837225925ec6ee89c32010d5ddd4dd63f1dd94d440671a33ce3
PDF
Publication page03a75d7f8a1a63f42eac5131f81721bf1a99882d091d8d7c24f44599c806e2f1
Manifest00645157e5b8bf5157977b8e3eadf3629164e6b07be58d465f919402ef038dfd

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
SignatureKkNiW17B25EROkpzyDB2YTQqJuaGsrLoHHHwaQK8RBEbmSBzapusE7w6agwDVB4YeMufkJ5uAd9DLhjRMaD5Bg==
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

2026-09-17T11:38:39.087478ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029940
observed 03a75d7f8a1a63f42eac5131f81721bf...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:39.070618ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029940/manifest.json
observed 00645157e5b8bf5157977b8e3eadf362...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:39.055098ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029940/publication.md
observed 49491c7c0f91a837225925ec6ee89c32...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:39.038727ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029940/publication.txt
observed b5b4a7f3fee499792497486d116950e6...
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.