OpenTechnical

OT-2026-000003590

Publication integrity record

Vacuum cup gripper, common isolation valve, four outlet manifold, two stage ejector, pressure verified

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-2026-000003590) never changes.

Identity and time

Publication numberOT-2026-000003590 · never reused
Internal UUID01a0a90a-77bf-799e-8c06-da2dcc20550c · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:07:10.658496Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000003590
StatusPUBLIC

Content hashes

Canonical text5cb71df77a05d5231e2a2ac832543a945fceb559fbe01e6407557daa871d7329
Markdown152b5d55991c7f3baa03bc2eb6739e6e4a74bc9bbc0e74e19c7dcd421485e622
PDF
Publication page53fe9cde58f8215f030aba3f7ce758afce6d6970365488a09c6199fada1ef670
Manifest74382460384090ad3ad9673e01f12df9dcc31b166ab7336679466216c315db24

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
SignatureRV+tXhObqEbDQm8jaQCNUyZU9UCL7X/r/pUx2mOmKfzoi8Xb+H1uMC8ICUbYOCaodpgyy+Vw3Ty/E6g3cuMrCA==
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

2026-09-16T08:40:36.634313ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003590
observed 53fe9cde58f8215f030aba3f7ce758af...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:40:36.496653ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003590/manifest.json
observed 74382460384090ad3ad9673e01f12df9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:40:36.481518ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003590/publication.md
observed 152b5d55991c7f3baa03bc2eb6739e6e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:40:36.465522ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003590/publication.txt
observed 5cb71df77a05d5231e2a2ac832543a94...
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.