OpenTechnical

OT-2026-000020644

Publication integrity record

Two bellows cup vacuum gripper, two outlet manifold, pump fed, supply line pressure sensor, pulsed blow-off 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-2026-000020644) never changes.

Identity and time

Publication numberOT-2026-000020644 · never reused
Internal UUID01a0ae6f-65e2-728a-96c6-e9841d816d68 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:31.316024Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000020644
StatusPUBLIC

Content hashes

Canonical textefbb6d8116ab489e92e6b9b8d4b5176930ecc44a33e3432a009343b7454b4d9a
Markdown8e066b21996b8dc96ad8efdd3b1f31a620bb2c248c2d6a7ef27ce876ecf12ef6
PDF
Publication page3255e8a82e2f2cc0fd237ac2bd0112bdbfba992298d2b56cf39dff3b460392fd
Manifest1ebcbf567425d1455c84a63a02f5d68b84f16e14382dd4a510739673f80e51c6

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
Signaturel9o/tFfFM8z7WafRlY/ECtrhUn9Fm0ZMSHGdBRG/4H23Aq0GifQGpMbgCDgO4d4wRSLgiRvb5JPih0SHgWbGBA==
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

2026-09-17T11:55:35.724589ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020644
observed 3255e8a82e2f2cc0fd237ac2bd0112bd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:35.705283ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020644/manifest.json
observed 1ebcbf567425d1455c84a63a02f5d68b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:35.685221ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020644/publication.md
observed 8e066b21996b8dc96ad8efdd3b1f31a6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:35.664851ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020644/publication.txt
observed efbb6d8116ab489e92e6b9b8d4b51769...
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.