OpenTechnical

OT-2026-000005128

Publication integrity record

Porous face vacuum gripper, four zone face, six outlet manifold, pump fed, contact triggered

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-2026-000005128) never changes.

Identity and time

Publication numberOT-2026-000005128 · never reused
Internal UUID01a0a92e-bd38-7b1d-8396-ecf049bb287d · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:46:47.739334Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000005128
StatusPUBLIC

Content hashes

Canonical textf0c542511260d3e8fd755b8da3513e10a744962204fb9eb79048a8b839c609b3
Markdown4fc95c060908d340a6657e657ab218fda54f520198a2cbebca56b3acbb50a9d0
PDF
Publication page44c50680de2d3893f8625cbe6e67c6b08417da7ba061c47c8de20293c677cdb9
Manifest6498c45b6e818dd3a545cc4f6747f1c406c86cb7a0a7f6536d011010c066b27c

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
SignatureHVx+dBWWVTTk7wxA2UhifRfhXZsxSoOwVERfg8N6HQoXn8JZWX8ktBCsJ8pXAmfDtYgpzCBeqvbU70W29xGYDw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T07:47:02Z
batch OT-TS-2026-W38-010 · RFC 3161 token · inclusion proof
root e1b42dfa4cd0fb1e3e472afd2db961c2...

Independent retrieval

2026-09-16T07:50:12.424877ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005128
observed 44c50680de2d3893f8625cbe6e67c6b0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:50:12.412800ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005128/manifest.json
observed 6498c45b6e818dd3a545cc4f6747f1c4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:50:12.400570ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005128/publication.md
observed 4fc95c060908d340a6657e657ab218fd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:50:12.387314ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005128/publication.txt
observed f0c542511260d3e8fd755b8da3513e10...
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.