OpenTechnical

OT-2026-000048005

Publication integrity record

Single cup vacuum gripper, plant vacuum fed, supply line pressure sensor, sustained blow-off after 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-2026-000048005) never changes.

Identity and time

Publication numberOT-2026-000048005 · never reused
Internal UUID01a0ae7f-c422-7566-b6ce-b7b320b5b17c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:33:24.028554Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000048005
StatusPUBLIC

Content hashes

Canonical text1fec1977f8d001081fad56db2ca3dc51bbd828fac5614b86f81672d6489a2f0e
Markdowne8597454fe1ec28552d067e7dbcc90595cb6eeed497f993b3c2792d7163dc5e9
PDF
Publication page7dcb7b33ae8ec4521985c5a425c1092b5ecfc4d26f45d3a3f439665a2a3a9445
Manifest0f06f1939218bb00e56e6328179d6d79ccbf7afadd0716b5065f4c82e5f63d56

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
SignatureTxsgxp1Nk3qKUE4F2nyFQ31Q6RtCRSYhiVnsOdXIswoluIznS8f9zxnUWuZ9YEGMKmNdIxuxUIFeWM+39W43AA==
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

2026-09-17T11:05:59.667061ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048005
observed 7dcb7b33ae8ec4521985c5a425c1092b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:59.649327ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048005/manifest.json
observed 0f06f1939218bb00e56e6328179d6d79...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:59.629998ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048005/publication.md
observed e8597454fe1ec28552d067e7dbcc9059...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:59.608477ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048005/publication.txt
observed 1fec1977f8d001081fad56db2ca3dc51...
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.