OpenTechnical

OT-2026-000042129

Publication integrity record

Four cup vacuum gripper, four outlet manifold, pump fed, sustained blow-off after 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-2026-000042129) never changes.

Identity and time

Publication numberOT-2026-000042129 · never reused
Internal UUID01a0ae7a-5d71-7d6c-9776-c0b34bdccd21 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:27:30.052779Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000042129
StatusPUBLIC

Content hashes

Canonical text10d74c75355b15868e0aef8e20808653daa2920982a09602fd4941a9de3d6049
Markdownc9ae06ecb2fcbb704c441da0a703e2777057a6ac5be879a9c3ac290c58e3e77b
PDF
Publication page6b7d2462117bf8fca2f04ecbff0ebafd2801381e24ddb62f150048520499efd6
Manifest0c85b59120a5104c269fb7f708b06bdf42f8baedcc4b702988493a9f3636fa43

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
SignatureCtVsWOyPXSGWPbxBZP/aRGE2HEmFBgZPCMdQzIti3yZT0pKmEl85boWdRTvyL5AftOy4m0GOg07BhAsKasc0Bw==
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

2026-09-17T11:15:40.494373ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042129
observed 6b7d2462117bf8fca2f04ecbff0ebafd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:40.475954ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042129/manifest.json
observed 0c85b59120a5104c269fb7f708b06bdf...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:40.458086ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042129/publication.md
observed c9ae06ecb2fcbb704c441da0a703e277...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:40.437739ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042129/publication.txt
observed 10d74c75355b15868e0aef8e20808653...
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.