OpenTechnical

OT-2026-000020091

Publication integrity record

Four bellows cup vacuum gripper, four zone face, three stage ejector, pulsed blow-off before set-down

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-2026-000020091) never changes.

Identity and time

Publication numberOT-2026-000020091 · never reused
Internal UUID01a0ae6f-1fb8-78e5-a664-32a946ab0c10 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:13.354643Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000020091
StatusPUBLIC

Content hashes

Canonical texte723c7ec1753da7da5d034e229125c4e2ad96ff188ec0ccc6a7a1079d401f62c
Markdownc14c6c9a37d7c3f0294522de06335dd958294d5149718452fc7577c02831f055
PDF
Publication pageb226f8f65e97ae78aa1bcd34b411e9c7e25aa6c4628af3a1d992dca7715cc8f5
Manifest9607d85e3856ddde53fa030175c49331019404c84d3edc9018a5c8dd041263bc

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
Signatured18T2FU509ZAVJnFOMbBbKH786VyJGEUlnvPFJxI4pH5ubskXRE9MTU8TsMXbtvCXNf4/gDNun+s8Zmg969aDw==
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

2026-09-17T11:58:21.944375ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020091
observed b226f8f65e97ae78aa1bcd34b411e9c7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:21.927248ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020091/manifest.json
observed 9607d85e3856ddde53fa030175c49331...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:21.910204ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020091/publication.md
observed c14c6c9a37d7c3f0294522de06335dd9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:21.893947ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020091/publication.txt
observed e723c7ec1753da7da5d034e229125c4e...
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.