OpenTechnical

OT-2026-000003850

Publication integrity record

Bellows cup vacuum gripper, four outlet manifold, pump fed, 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-2026-000003850) never changes.

Identity and time

Publication numberOT-2026-000003850 · never reused
Internal UUID01a0a90b-3f4a-7e8f-ba27-e7ffb78bf8d3 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:08:01.740425Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000003850
StatusPUBLIC

Content hashes

Canonical text219130e5b2a9893f6bce3b7c8bb14e4c87b386d090547439a9ae8299d6f397d3
Markdowndd246f1914c50cfd5c722090c6027cf07ac5c3c198e41bc4e7785dbfab676fd9
PDF
Publication page5d08862d806bdabb9faaa85be73bee76fb7ed5c0408a67359836a12bd4123d1f
Manifest1723cb7028b04f49896187465b41330c57e02a315f5811d49e83b6f0fe2f9dbd

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
SignatureS89QI7ZAX7zzhjL8tgxSgZ4ctDD0/etMJoLtW4r85eP0Be45SUFELgbXM6gFoVM0+78t3RiN2CWdBcNsjS7oAg==
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

2026-09-16T07:10:16.609409ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003850
observed 5d08862d806bdabb9faaa85be73bee76...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:10:16.596494ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003850/manifest.json
observed 1723cb7028b04f49896187465b41330c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:10:16.581606ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003850/publication.md
observed dd246f1914c50cfd5c722090c6027cf0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:10:16.568568ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003850/publication.txt
observed 219130e5b2a9893f6bce3b7c8bb14e4c...
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.