OpenTechnical

OT-2026-000104299

Publication integrity record

Four bellows cup vacuum gripper, four zone face, common isolation valve, pump fed, pulsed blow-off after 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-2026-000104299) never changes.

Identity and time

Publication numberOT-2026-000104299 · never reused
Internal UUID01a0aea5-3420-7110-bc0c-a1467ff01828 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:14:17.519068Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000104299
StatusPUBLIC

Content hashes

Canonical text745e30b76a6474231f7cd4f9508f2f8127d03b3e5bf59ffdf5e9c76e060edbac
Markdown6deb3761703cd38a7d30aeb35d93877e67c8563bb5505f22def37b35eb0d9b6a
PDF
Publication page828c1646045ee5c2c5fbf4711ea08084d2b368bd3a129b0341587c8f212f841b
Manifest020ce6502be3896cff721bfadcffd5f5b1e267e6f1cc600a9dfb78d1c0552a5a

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
Signaturedswq9UrHlqPlNcoVDCyun29fW8s+sZYquL1OeFz4g/xYhthokEGVdf5HFId/y990lFMSWb3zaclXJhoRazesDQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:27:04Z
batch OT-TS-2026-W38-023 · RFC 3161 token · inclusion proof
root 095d30148a2ef87d42d7818ebe7543f9...

Independent retrieval

2026-09-17T09:21:32.626486ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000104299
observed 828c1646045ee5c2c5fbf4711ea08084...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:21:32.607249ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000104299/manifest.json
observed 020ce6502be3896cff721bfadcffd5f5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:21:32.587682ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000104299/publication.md
observed 6deb3761703cd38a7d30aeb35d93877e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:21:32.568856ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000104299/publication.txt
observed 745e30b76a6474231f7cd4f9508f2f81...
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.