OpenTechnical

OT-2026-000007158

Publication integrity record

Vacuum cup gripper, four outlet manifold, plant vacuum fed, pressure verified, vented 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-2026-000007158) never changes.

Identity and time

Publication numberOT-2026-000007158 · never reused
Internal UUID01a0a974-cf7a-7d08-9749-ea1072c04b1e · UUIDv7, RFC 9562
Publication timestamp2026-09-16T09:03:19.936755Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000007158
StatusPUBLIC

Content hashes

Canonical text4a5f82a03250fa30da9f35bbc804b4f75182e482ad590fccf5636b717dd93692
Markdown003e7c01a0075d1234bab78bac6af53f69e87440371277241c3ccfc4f8d1fb01
PDF
Publication page7440670f7bb94dfb2c6c4925b3c79978befadf4b56db7f9116ab949802a8bff1
Manifeste1d929b154004042d539c46e9e7a9e2d80fc80ba62d52d873e3f372e91f3207c

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
SignaturePSJUXq/5pOPkUpEVhmKkYMS2DqzSRIH+QsX5edON/K8/KN5NLpNpAlh149LACEtBBuOhu190gJMpNK0tFaikAg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T09:07:03Z
batch OT-TS-2026-W38-014 · RFC 3161 token · inclusion proof
root 2354c19da800f8df297acf3cddd64d4d...

Independent retrieval

2026-09-16T09:10:20.907136ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007158
observed 7440670f7bb94dfb2c6c4925b3c79978...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:10:20.888382ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007158/manifest.json
observed e1d929b154004042d539c46e9e7a9e2d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:10:20.753094ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007158/publication.md
observed 003e7c01a0075d1234bab78bac6af53f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:10:20.741257ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007158/publication.txt
observed 4a5f82a03250fa30da9f35bbc804b4f7...
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.