OpenTechnical

OT-2026-000004087

Publication integrity record

Bellows cup vacuum gripper, four zone face, four outlet manifold, plant vacuum fed

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-2026-000004087) never changes.

Identity and time

Publication numberOT-2026-000004087 · never reused
Internal UUID01a0a90e-7c72-7c80-bb20-4f38a955d88d · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:11:34.005706Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000004087
StatusPUBLIC

Content hashes

Canonical text5446c6393272c1fb8e6a8a1578593cb0a86159ddf3527692367d7a991dea4490
Markdowneddf285111c011e40d82e7edcbcecb6fb463b879a48278f38e96eff6a9b1ee26
PDF
Publication page0f4c3d516a4c358d498dc5555ef1c72ff130369d9f7478869ac3415cf933f083
Manifest5d37c250967c18a975e9d8aafd725e392f31e272fad71f12522078e1beb9a196

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
SignatureNOL9S9j3+xk+A4qx3CFVxDXdS5u/z1GnyQzEjUVl9XQaau/B+u9u4fmFThetgjt9l1Qtju5vwgmX/uuWEzQVDA==
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

2026-09-16T07:30:33.623293ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004087
observed 0f4c3d516a4c358d498dc5555ef1c72f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:30:33.481360ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004087/manifest.json
observed 5d37c250967c18a975e9d8aafd725e39...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:30:33.467532ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004087/publication.md
observed eddf285111c011e40d82e7edcbcecb6f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:30:33.453115ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004087/publication.txt
observed 5446c6393272c1fb8e6a8a1578593cb0...
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.