OpenTechnical

OT-2026-000074728

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, common isolation valve, pump fed, supply line pressure sensor, vented before 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-2026-000074728) never changes.

Identity and time

Publication numberOT-2026-000074728 · never reused
Internal UUID01a0ae93-ac2b-78b3-92a4-e4c38eb3247b · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:55:08.693295Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000074728
StatusPUBLIC

Content hashes

Canonical texte08d97f9d794142a5213d0b5ace5093f374d98c31cae76b79d0221f795c23154
Markdown20bcdbd5aed8ce2428f9c56b4f9fb52bbecf6dedf67542e07cd2ce7cc497bf44
PDF
Publication page2c0fd469ac0cd3059defdc8358e698d1472a7b47c1a17c3f4f97699a0e9b2aa3
Manifest3d5efea3214620b7b0e21c4aa80f6d64916ad6e757eb26d0217e8de7f6404884

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
SignatureS2VOKq9PhUsgcJv/lZokUMIxZBEsW1IVYk8yX7Lx/UXJMCcuuHerkxO6FSwzyTjd7MgR797W2o/jhUEb4UirBw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T10:18:19.674351ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074728
observed 2c0fd469ac0cd3059defdc8358e698d1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:18:19.657776ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074728/manifest.json
observed 3d5efea3214620b7b0e21c4aa80f6d64...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:18:19.640929ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074728/publication.md
observed 20bcdbd5aed8ce2428f9c56b4f9fb52b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:18:19.623513ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074728/publication.txt
observed e08d97f9d794142a5213d0b5ace5093f...
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.