OpenTechnical

OT-2026-000030025

Publication integrity record

Three cup vacuum gripper, three outlet manifold, pump 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-2026-000030025) never changes.

Identity and time

Publication numberOT-2026-000030025 · never reused
Internal UUID01a0ae73-ac49-73f2-b8de-4b9e0958d173 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:20:11.501096Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000030025
StatusPUBLIC

Content hashes

Canonical text819ccd3c848e6fbf05cf445d087b780fc6ccf10ddb71102c144a4edeed3993bc
Markdownffd5ae203f1211d2c5830ae047d27a3e58d32d074015388aa021cdf22cf4a9d0
PDF
Publication page549d94dae284f8c1f57427a92147f88cb6c904f8115df4ce3a4f8c73f7d52911
Manifest89c2afcfe2e5a02be722b91856c91324b618bbeb9a6fc1063467322150473637

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
SignaturerouswSoXZBOg5hak8e10dCuAw/PwBrOLgofaiPxhPTDTmN6hBWvNclkYL+09f3gSb0wyLebSiH1aOe7QS5LXDQ==
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

2026-09-17T11:38:45.566028ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030025
observed 549d94dae284f8c1f57427a92147f88c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:45.547764ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030025/manifest.json
observed 89c2afcfe2e5a02be722b91856c91324...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:45.531040ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030025/publication.md
observed ffd5ae203f1211d2c5830ae047d27a3e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:45.513742ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030025/publication.txt
observed 819ccd3c848e6fbf05cf445d087b780f...
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.