OpenTechnical

OT-2026-000023413

Publication integrity record

Four cup vacuum gripper, four outlet manifold, common isolation valve, single stage ejector, 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-2026-000023413) never changes.

Identity and time

Publication numberOT-2026-000023413 · never reused
Internal UUID01a0ae70-7268-748c-a6fc-6ebad21c48ee · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:16:40.056870Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000023413
StatusPUBLIC

Content hashes

Canonical text40136d0c07f6eaa62c4f7d1061106aa7b0bfad95b0adb85602b74f4aa8fef6e9
Markdownb09305468139d941640952ff4aec1ced328643ad7e1ca6a2833f75a3ed3b68f2
PDF
Publication page52c44d76ca50af37cd1f18093eccd7539c35889fb51fa0f52f4ec2c48839de77
Manifestc5e82b90c1fea12040e26f9c489f2b7731a11884c61758f5ee16fe46fc93d9d3

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
SignatureOJ5VIN9xhBjqapVK3xpa48BHv17bZVjWqrIZQ0CziOBRu+zJlIdUEeoGI+hTqmSOJf+duZr0/cHyGNdZ3IKxAA==
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

2026-09-17T11:51:37.245700ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000023413
observed 52c44d76ca50af37cd1f18093eccd753...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:51:37.229520ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000023413/manifest.json
observed c5e82b90c1fea12040e26f9c489f2b77...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:51:37.213649ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000023413/publication.md
observed b09305468139d941640952ff4aec1ced...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:51:37.196730ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000023413/publication.txt
observed 40136d0c07f6eaa62c4f7d1061106aa7...
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.