OpenTechnical

OT-2026-000018855

Publication integrity record

Four bellows cup vacuum gripper, four zone face, six outlet manifold, three stage ejector, pulsed blow-off before 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-2026-000018855) never changes.

Identity and time

Publication numberOT-2026-000018855 · never reused
Internal UUID01a0ae6e-d521-75ce-b842-afea7e37bfda · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:14:54.261386Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000018855
StatusPUBLIC

Content hashes

Canonical text4b9e132408fdd68a4c515bfe7870350f71863dcc51c0f1a9220a4419f1841452
Markdown4be0c0987f1339203a5c4a078774196e2337505057d1ddc414237edb43dbbae0
PDF
Publication paged7fdf96224f75e48b00a6b9154f49f8e14303858bed151ee5ad0abfe2e69df95
Manifest2fc9766f5dece6a3fc5a61e22aacb04371588630bfee7f5d822b5bf9dc727825

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
SignatureTvnu5WR29w4CLNkr5itoKCaJwZAfKkOxOF4aDO7YPSkhCO6IhPlGKo/rQq8T/bq2/8GPDQyXDLtNf81yFf86BA==
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

2026-09-17T11:59:29.833971ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018855
observed d7fdf96224f75e48b00a6b9154f49f8e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:59:29.817079ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018855/manifest.json
observed 2fc9766f5dece6a3fc5a61e22aacb043...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:59:29.797517ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018855/publication.md
observed 4be0c0987f1339203a5c4a078774196e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:59:29.752388ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018855/publication.txt
observed 4b9e132408fdd68a4c515bfe7870350f...
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.