OpenTechnical

OT-2026-000005360

Publication integrity record

Vacuum cup gripper, common isolation valve, pump 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-2026-000005360) never changes.

Identity and time

Publication numberOT-2026-000005360 · never reused
Internal UUID01a0a936-987e-7df2-90b2-25bbb96e4e13 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:55:22.624738Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000005360
StatusPUBLIC

Content hashes

Canonical text600a2ac0d0b4625d5986842280eaca5b1154e13f088fee6f17086730e225be91
Markdown3666bca6712b70f3a0c1835f37f69ec3404150519b0ef3cfe2e423f493faca9f
PDF
Publication page018586a60747052d35199a83aa24cdcf1eb5468d870bdcf49f623cd91fa77801
Manifestef184bde0b8dfbc9a6ae28540263ac9a8b7696783d47a36ff5a1d6f508cc46c2

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
SignatureDtV4vcpWS1rrFQowNdJuFgySfDuvQBzpfrAWOtYUDI54ErvLE62XkMyBzoxQ7DMGV755il19b/0FJuZ/xaWeDA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:07:02Z
batch OT-TS-2026-W38-011 · RFC 3161 token · inclusion proof
root 8f13af7374aef42943b7bbe6a279c57a...

Independent retrieval

2026-09-16T08:00:18.473505ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005360
observed 018586a60747052d35199a83aa24cdcf...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:00:18.461621ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005360/manifest.json
observed ef184bde0b8dfbc9a6ae28540263ac9a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:00:18.448609ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005360/publication.md
observed 3666bca6712b70f3a0c1835f37f69ec3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:00:18.434514ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005360/publication.txt
observed 600a2ac0d0b4625d5986842280eaca5b...
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.