OpenTechnical

OT-2026-000056187

Publication integrity record

Four cup vacuum gripper, four zone face, common isolation valve, pump fed, supply line pressure sensor, 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-2026-000056187) never changes.

Identity and time

Publication numberOT-2026-000056187 · never reused
Internal UUID01a0ae87-0a4c-70dd-8959-3610ebfa0680 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:41:20.734835Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000056187
StatusPUBLIC

Content hashes

Canonical text02928a3ed1179c0e1b73bc734b1d79427bfe98b02acb2a6f6ca833c7a50bbe4a
Markdownc8a34acbbebd8fce0fb18e43cf75b2054004a6cbd24bc270f1623387a8dd5292
PDF
Publication pagec2d55083b8feeca38548ebd8c9697f03bca791f3c6bf481b3bc90a948127359d
Manifestb659c8c41dc624de2d98ea9ef36233568664f9f1d9f86dd8386e486eb6d46adc

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
SignaturevdyFdRhcpOs2jkrCBeXKDFFP7B15u8+4T5RhBZQVUocDcL6R7CRoXX+IsGt97C6hjgWGouVKFuYXxKejzKczDQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:47:04Z
batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof
root 954df3475fbcfbe27467725cfb2ec919...
timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T10:51:45.078457ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056187
observed c2d55083b8feeca38548ebd8c9697f03...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:45.062420ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056187/manifest.json
observed b659c8c41dc624de2d98ea9ef3623356...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:45.046847ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056187/publication.md
observed c8a34acbbebd8fce0fb18e43cf75b205...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:45.028897ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056187/publication.txt
observed 02928a3ed1179c0e1b73bc734b1d7942...
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.