OpenTechnical

OT-2026-000068474

Publication integrity record

Three bellows cup vacuum gripper, three zone face, three outlet manifold, pump 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-2026-000068474) never changes.

Identity and time

Publication numberOT-2026-000068474 · never reused
Internal UUID01a0ae90-2481-77ca-8e61-426a8cefe9b6 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:51:17.262143Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000068474
StatusPUBLIC

Content hashes

Canonical text7f48344905e8951afa7aa410ca85cd05e11865e1dddb8d6b7d6aada774b989d0
Markdown171c48d8d9b2ae55ec4d342cee0e1369f3b320c0277c7dc65016bdbab998b535
PDF
Publication page018f3ab166013361a7348c136e98abd3c335c83b6904e861e003d85a34c3b115
Manifest89d0026856c24b3d459643951ea80d0ec982e143f14c5f459ce0223e444a2aa6

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
SignaturetIo6lbyf1xGbLqyakK+UaBU0Iien9I5hF0e1ZWWDQg0htQiB9aJ0F/OCethiyxKjcdN68ENq6n2m/Ic+YZ+vBA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T10:29:37.498339ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000068474
observed 018f3ab166013361a7348c136e98abd3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:29:37.483256ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000068474/manifest.json
observed 89d0026856c24b3d459643951ea80d0e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:29:37.466725ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000068474/publication.md
observed 171c48d8d9b2ae55ec4d342cee0e1369...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:29:37.450439ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000068474/publication.txt
observed 7f48344905e8951afa7aa410ca85cd05...
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.