OpenTechnical

OT-2026-000050429

Publication integrity record

Two cup vacuum gripper, two outlet manifold, pump fed, vented 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-2026-000050429) never changes.

Identity and time

Publication numberOT-2026-000050429 · never reused
Internal UUID01a0ae82-5c48-7f9d-aee4-404083b269e1 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:36:14.042293Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000050429
StatusPUBLIC

Content hashes

Canonical textb65597dd94a73dfdd5b1f14e0975e044affcad3835f9a329ecbf9b0a86e6b7ac
Markdown4e69174979cd0d3852ee7ea1395adf3855ccbabcca2c8736714bd04b8c36eaff
PDF
Publication pageb3a42e632a3e2174c2544f0764849671806382a79beff562aecabd3de0a37059
Manifestc1555f967ecb86ff586c67fad6c41efe9852cf8a6cfc9e35d321064a482b76a9

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
Signature5m4iIu4znqGtRj9lOOjrn6mrlwBs1bqdk05s5XUbh/m/Da0zfyIgwjVc9xlJ9LMpvqqjill3xDZ0Uwx+zCAzCw==
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

2026-09-17T11:01:28.478589ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050429
observed b3a42e632a3e2174c2544f0764849671...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:01:28.461806ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050429/manifest.json
observed c1555f967ecb86ff586c67fad6c41efe...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:01:28.445282ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050429/publication.md
observed 4e69174979cd0d3852ee7ea1395adf38...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:01:28.427777ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050429/publication.txt
observed b65597dd94a73dfdd5b1f14e0975e044...
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.