OpenTechnical

OT-2026-000028730

Publication integrity record

Six pad foam vacuum gripper, six outlet manifold, plant vacuum fed, manifold pressure sensor, 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-2026-000028730) never changes.

Identity and time

Publication numberOT-2026-000028730 · never reused
Internal UUID01a0ae72-e2fa-7938-a15b-b0b9546aa23e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:19.949572Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000028730
StatusPUBLIC

Content hashes

Canonical text14f19d28b4cbf63771a6112a65bf3266fa1f5a68ae929856711a1895afddc566
Markdownbf529eae24ba74938adc1e5431f5b7ed4b5cf92520010f4bf76a66598b25d5a8
PDF
Publication pagec4e5d11dad964368ce4ecec42c7558db29ae220eeed57ce9d90b3400bc21bafc
Manifestc7a23cfae4870cb467b6622bc90ddcd7700379fec7383713140c6a1d553b300d

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
SignatureVT9IQ+MiNdhGmsQPz6IljwbGGMor7Fil4kzHprSldI+VOzngRiLiF6ajlVGejQHUii88eDWiSDPlEQRt7R0tCw==
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

2026-09-17T11:41:44.521591ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028730
observed c4e5d11dad964368ce4ecec42c7558db...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:41:44.503965ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028730/manifest.json
observed c7a23cfae4870cb467b6622bc90ddcd7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:41:44.485937ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028730/publication.md
observed bf529eae24ba74938adc1e5431f5b7ed...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:41:44.467408ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028730/publication.txt
observed 14f19d28b4cbf63771a6112a65bf3266...
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.