OpenTechnical

OT-2026-000048559

Publication integrity record

Four bellows cup vacuum gripper, four zone face, common isolation valve, plant vacuum fed, pressure sensor per zone, 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-2026-000048559) never changes.

Identity and time

Publication numberOT-2026-000048559 · never reused
Internal UUID01a0ae80-4de7-7d62-9c3d-a1e81ee669e8 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:33:59.290761Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000048559
StatusPUBLIC

Content hashes

Canonical textd8ce26bccb13cf83e26a945b3aeee5d64184a0b9ce1dd7a830d00ec9935b6fed
Markdowna7ea8a66838bf666de32a3703d127420c0f9c8fd9b326bbfa253e7d994b28602
PDF
Publication page74482df52764fe0a9a99b37ad7aa9b4e092795047b782330d5c4f2e3e66d2bb5
Manifestf01a277f90b6bd8330d99641bed956eff50b5f6e738556be16d3f47c181c2f17

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
SignatureqceV7jZ8OviLgqP4vQDagRA9CpwxH5xbal9TSHOSztEtOkVIWeFfC6M5PXsHJX1BXMrCaCRPoeoWT8CyocB+Cg==
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

2026-09-17T11:05:21.463164ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048559
observed 74482df52764fe0a9a99b37ad7aa9b4e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:21.442484ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048559/manifest.json
observed f01a277f90b6bd8330d99641bed956ef...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:21.421464ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048559/publication.md
observed a7ea8a66838bf666de32a3703d127420...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:21.400231ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048559/publication.txt
observed d8ce26bccb13cf83e26a945b3aeee5d6...
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.