OpenTechnical

OT-2026-000042413

Publication integrity record

Three cup vacuum gripper, three outlet manifold, common isolation valve, two stage ejector, sustained blow-off after set-down

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-2026-000042413) never changes.

Identity and time

Publication numberOT-2026-000042413 · never reused
Internal UUID01a0ae7a-5d75-7f4f-93c3-c2c1ac4d0f8f · 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-2026-000042413
StatusPUBLIC

Content hashes

Canonical text69d71827722a366998a87054253ca76752ed7fa078ec2bff50e1bd8a780c94f5
Markdown894a5be5b8b4b5b8e39336c9af362e5119e700d2eb4ca184780a982a7ebb705c
PDF
Publication page3db0d2bb3be28f6b8f5bb9d50e486e527577adb71e73155dfdaa5e5bd0ffff9c
Manifestf575e7e36e6a1aff5ad3cef15ada42beac7400e83dae3afcc3db6aa2cfe3fea7

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
Signature9S1cPGZcSdGim0nw9Gk4T29cY45xSN9d/6wNYHcDf6wY/szZLLxKplwieesJ9hT0+3F2ebucR3wWkeXPLIA5DQ==
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

2026-09-17T11:16:12.648698ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042413
observed 3db0d2bb3be28f6b8f5bb9d50e486e52...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:16:12.630929ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042413/manifest.json
observed f575e7e36e6a1aff5ad3cef15ada42be...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:16:12.612910ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042413/publication.md
observed 894a5be5b8b4b5b8e39336c9af362e51...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:16:12.594626ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042413/publication.txt
observed 69d71827722a366998a87054253ca767...
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.