OpenTechnical

OT-2026-000043298

Publication integrity record

Foam pad vacuum gripper, common isolation valve, three stage ejector, sustained blow-off after set-down, on a tool changer

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-2026-000043298) never changes.

Identity and time

Publication numberOT-2026-000043298 · never reused
Internal UUID01a0ae7b-327d-7aba-9aae-5ea5f4561eb8 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:28:24.717423Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000043298
StatusPUBLIC

Content hashes

Canonical text47c543ba63d9520d3d1e8790dd24807c48355f554dabb3c1980a31f9ec030e48
Markdownc3219c76e578c2c820e3015caeb1c88921fb2739710bf4220d41201fcdba03fd
PDF
Publication page11611d3c21330fac71be5cf1fcfe977ae31eba07557f367bf67cd988cc6968e1
Manifest41d7940bc23ba66baff21175cb450972754887c7c28d3d1c43d8828b8389284b

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
SignatureojEpUEO4bh5NbH5mh+jLkGPEzvWX7TtHLSn6g6le+wJ9MJ7Rf1uQNVaF6z+bA+UsgzVO+tum53W4F11+lDclAg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:13:47.680207ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043298
observed 11611d3c21330fac71be5cf1fcfe977a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:47.661980ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043298/manifest.json
observed 41d7940bc23ba66baff21175cb450972...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:47.641524ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043298/publication.md
observed c3219c76e578c2c820e3015caeb1c889...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:47.621414ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043298/publication.txt
observed 47c543ba63d9520d3d1e8790dd24807c...
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

OT-CUSTODY-2026-W38OpenTechnical-Custody-2026-W38.tar.zst
f2fc69d02142424a578267e5e3a6d3bb... · 402,218,449 bytes · held by held on site pending an external custodian · retention permanent