OpenTechnical

OT-2026-000029861

Publication integrity record

Six cup vacuum gripper, six outlet manifold, common isolation valve, pump fed, supply line pressure sensor, 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-2026-000029861) never changes.

Identity and time

Publication numberOT-2026-000029861 · never reused
Internal UUID01a0ae73-ac47-7e98-8755-f50c386dc9b5 · 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-2026-000029861
StatusPUBLIC

Content hashes

Canonical text6659c11d621861e23365c17640cec1d2f4b6f2028297123ab2f28da8b89a6118
Markdown701e7a8eab41661422c7a6afdc547ba09245c1290a49df422a6dd4a927dc5672
PDF
Publication page445b60d50b40b8b1258bcf1d18b66164972cac8d81bfb76ff94d1329cf496293
Manifest3f2ed4f5cb07563ad4476f9ad3073e0569b69a7536d87115e8dcefb2fdefb774

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
SignatureO7Cor2HlfKXAo2FhkgDsNLSwzLfc4ivs5fKxk7MzmEmSCMTykliPYKLdQN+oV8V22768DfoRGwGzjFBriW5RDw==
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

2026-09-17T11:38:33.275128ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029861
observed 445b60d50b40b8b1258bcf1d18b66164...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:33.258250ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029861/manifest.json
observed 3f2ed4f5cb07563ad4476f9ad3073e05...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:33.241925ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029861/publication.md
observed 701e7a8eab41661422c7a6afdc547ba0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:33.224878ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029861/publication.txt
observed 6659c11d621861e23365c17640cec1d2...
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.