OpenTechnical

OT-2026-000004137

Publication integrity record

Vacuum cup gripper, four zone face, four outlet manifold, three stage ejector

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-2026-000004137) never changes.

Identity and time

Publication numberOT-2026-000004137 · never reused
Internal UUID01a0a90f-671e-7ce6-93d4-9b532c8ee51e · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:12:34.081167Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000004137
StatusPUBLIC

Content hashes

Canonical text7a1932c70778cf2ed1273f96a5cc14e5239f221633d990e7298bf86bcf972ad5
Markdownc921bb71e58ddb8ac904e4a7d7dcbc6b0fa50433938ddf780bc33fb006f1c38c
PDF
Publication page43c26da998178cde615f42a71f7255a529afbf5dc2e1889a0b05707d513a610b
Manifest9c275f22aaecaf68e2b6cb1b721d5286411e7581cdb4084ef97b6c6dda081817

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
SignaturejJhLqY7hsMLouvSB7Ok0o5o1xCItNpW8wFQUw6jgkdsi/FpW5tT3U5c9Bbbzz3tFpzNlAmx8wZVdhKN4XymKCw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T07:27:02Z
batch OT-TS-2026-W38-009 · RFC 3161 token · inclusion proof
root aada101caea153fd76622afa3661a5b8...

Independent retrieval

2026-09-16T07:20:32.409286ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004137
observed 43c26da998178cde615f42a71f7255a5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:20:32.395338ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004137/manifest.json
observed 9c275f22aaecaf68e2b6cb1b721d5286...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:20:32.381517ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004137/publication.md
observed c921bb71e58ddb8ac904e4a7d7dcbc6b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:20:32.186679ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004137/publication.txt
observed 7a1932c70778cf2ed1273f96a5cc14e5...
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.