OpenTechnical

OT-2026-000029968

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, pump fed, sustained 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-2026-000029968) never changes.

Identity and time

Publication numberOT-2026-000029968 · never reused
Internal UUID01a0ae73-ac48-7f4a-870e-aa886f335e52 · 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-2026-000029968
StatusPUBLIC

Content hashes

Canonical text783f7cd8a33c153c20ed8f103a5da54655275cb83efcbb4abceed015f7968f75
Markdown64bf38c242e6c3d76a8e74c55eb41d678534047391c9e73ac9e90b88779fe7c8
PDF
Publication page102fd33095d46b379a45fbcc4f3f9faac17db6049afc566d8aa548e43a6e9b83
Manifestb43e297597ae829f8ba44e40645843e8232c38624a41d78f4dc41c05211f85c5

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
SignatureuRqcj70OqPQ8tRAPBuoWycjtGPs2duURffq7zQSvabiePN2LL3qrvH+7zjAZiFBN/kTvM+RV8KdyBVEtl4jPBA==
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

2026-09-17T11:38:41.209366ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029968
observed 102fd33095d46b379a45fbcc4f3f9faa...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:41.190118ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029968/manifest.json
observed b43e297597ae829f8ba44e40645843e8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:41.173541ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029968/publication.md
observed 64bf38c242e6c3d76a8e74c55eb41d67...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:41.157157ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029968/publication.txt
observed 783f7cd8a33c153c20ed8f103a5da546...
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.