OpenTechnical

OT-2026-000022657

Publication integrity record

Single cup vacuum gripper, common isolation valve, plant vacuum fed, sustained 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-2026-000022657) never changes.

Identity and time

Publication numberOT-2026-000022657 · never reused
Internal UUID01a0ae70-46e9-71a3-b706-611ba7675a1e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:16:28.929798Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000022657
StatusPUBLIC

Content hashes

Canonical texte36db60c9d83292315dd98d76d1313ce88e61806ad85a1aa884354428efff1c7
Markdownfd3e15bac38648f207fb2980deaef8283deff83f105b2ce45b77b00e43fa4206
PDF
Publication pageca32f617614a23b2f4f8329ce3b5c92ae514de535054532bbe0ef2f575c0e236
Manifest8ce9d28c01d55efcde46cd88f91d66daa4c223991c14395362f7a4a87e043bdb

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
SignatureJpI7W3JsHANbmgv8ZSebDfTWX27KImJ3nCiKuV1hanhVPssqKCtb77xZeTARhg+P2Sd14VxFFUPhe/igN4D2CQ==
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

2026-09-17T11:52:02.454807ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022657
observed ca32f617614a23b2f4f8329ce3b5c92a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:52:02.437195ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022657/manifest.json
observed 8ce9d28c01d55efcde46cd88f91d66da...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:52:02.421158ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022657/publication.md
observed fd3e15bac38648f207fb2980deaef828...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:52:02.404460ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022657/publication.txt
observed e36db60c9d83292315dd98d76d1313ce...
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.