OpenTechnical

OT-2026-000006541

Publication integrity record

Vacuum cup gripper, per zone isolation, four outlet manifold, pump fed, contact triggered, silicone cups

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-2026-000006541) never changes.

Identity and time

Publication numberOT-2026-000006541 · never reused
Internal UUID01a0a95e-ccd6-7592-957b-efeb017c92c1 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:39:17.465049Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000006541
StatusPUBLIC

Content hashes

Canonical textcd15dc6f36678fcadfaa3ef8b7b0c0311ce49851dcab4255811885508185a4e0
Markdownd7f966117f534f53d40815657ef786a674212403d10ae4b64e2cf5c21e1eccec
PDF
Publication pagedc50ea96eedc8ba92d8eddd13fcc8f7acaafac207be0c431071797946d2a7fd2
Manifest776755ea3649ef1914a02a6ad53140e1fba3674f782a6e3f5ada35510aa94dc6

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
Signaturerxd23zmWCJpA24LM2o3P1OVkGDgkd10oT9kBOH7Hwuwol6apww0ds62k9K77B52U1XZvGLRexrtRtxK0cZ0UDw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:47:03Z
batch OT-TS-2026-W38-013 · RFC 3161 token · inclusion proof
root e368e9c5ab06dc5cb1b0682dd54c11f5...

Independent retrieval

2026-09-16T08:40:05.387485ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006541
observed dc50ea96eedc8ba92d8eddd13fcc8f7a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:40:05.245578ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006541/manifest.json
observed 776755ea3649ef1914a02a6ad53140e1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:40:05.230473ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006541/publication.md
observed d7f966117f534f53d40815657ef786a6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:40:05.214644ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006541/publication.txt
observed cd15dc6f36678fcadfaa3ef8b7b0c031...
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.