OpenTechnical

OT-2026-000004182

Publication integrity record

Bellows cup vacuum gripper, per zone isolation, ejector fed, pressure verified at each zone

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-2026-000004182) never changes.

Identity and time

Publication numberOT-2026-000004182 · never reused
Internal UUID01a0a911-05f7-7e9e-9d95-77a8359df62a · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:14:20.283694Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000004182
StatusPUBLIC

Content hashes

Canonical text98062ecf66df05811a3e1c7e3c25523a94ba789c0c5899f50d02586f1261fc77
Markdown832e9d4d9f1bfe15ea846fad96b3a85e9a666adbd1771b4c95f6f2a967f64924
PDF
Publication page8cc579849d9cc7b5912215cf9233838698448b35785e6686dcbe41e7ada151d4
Manifest40d4a8f2b6cda2d801ec90e5f793fac77da431ed78fe2ce7bf87f7e7130eca54

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
SignaturegmofpmjBaLK28MWEkJ1xMQzn2Ztv9RxZGcMRVoM15CxgmOl5tdJyfVgr7xIs67USJ0iNLgFFY0zIw5gsdpbEAg==
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

2026-09-16T07:20:26.939386ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004182
observed 8cc579849d9cc7b5912215cf92338386...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:20:26.925228ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004182/manifest.json
observed 40d4a8f2b6cda2d801ec90e5f793fac7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:20:26.912462ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004182/publication.md
observed 832e9d4d9f1bfe15ea846fad96b3a85e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:20:26.894533ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004182/publication.txt
observed 98062ecf66df05811a3e1c7e3c25523a...
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.