OpenTechnical

OT-2026-000048621

Publication integrity record

Four cup vacuum gripper, four outlet manifold, pump fed, supply line pressure sensor, sustained 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-2026-000048621) never changes.

Identity and time

Publication numberOT-2026-000048621 · never reused
Internal UUID01a0ae80-4de8-71a5-a212-a58fea193b7f · 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-2026-000048621
StatusPUBLIC

Content hashes

Canonical textdc05b536826293d2221310bf8e6768b902f89b28e6ed37073dcb431d2f74687b
Markdown4dc9fad154f3b760b0880d601ef7af431c72dd76feb3e63875a9f7ad79a4ad1a
PDF
Publication page852c4fc50a3176b3c1845424d92c934ec5b362b97ac279c582bd37b38701e0d9
Manifest4b207de614597a254bc407d512347ff384e35732d4c00cad625c142c89999182

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
SignatureYzQHcPDkd0RTG4xx7wS5rlAWy+JMZx2mRS/XaABRvrGu4sCYorMqNzGEHjCSUnxlzaNdE+qLKzliRsExlZP5BQ==
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

2026-09-17T11:05:26.445768ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048621
observed 852c4fc50a3176b3c1845424d92c934e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:26.427350ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048621/manifest.json
observed 4b207de614597a254bc407d512347ff3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:26.406642ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048621/publication.md
observed 4dc9fad154f3b760b0880d601ef7af43...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:26.389428ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048621/publication.txt
observed dc05b536826293d2221310bf8e6768b9...
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.