OpenTechnical

OT-2026-000043697

Publication integrity record

Four cup vacuum gripper, four outlet manifold, common isolation valve, plant vacuum fed, sustained blow-off after set-down

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-2026-000043697) never changes.

Identity and time

Publication numberOT-2026-000043697 · never reused
Internal UUID01a0ae7b-92d1-7f0f-992a-eb3a10dcfa53 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:28:49.254972Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000043697
StatusPUBLIC

Content hashes

Canonical texte16d61f79b9c5bc83ac7403c5a08ebf42cd22eab1357b461c5811f7eb8a7258c
Markdownc703322b9b3c9fdb1ee3ff0be3e8e447b62037e0866b3bfbddd45a95934a2c02
PDF
Publication pagec7a5b4c08c0c4a30c60a969dc2a19c468bae99713264bf55318f81a2bb9e16bd
Manifest6b5a6fc7ade850aa90ea2321381508e971eed4dc92eb79753e7a08eac71fd59c

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
SignaturelkKsI6oBAyC+ZbqU9MRW9CQ0r7E3V778nCDSLlhyY6G7sD3+ee39fu9WMT76HHqpkxn82ueAsuxlIxHiJLIpAg==
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

2026-09-17T11:13:11.515319ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043697
observed c7a5b4c08c0c4a30c60a969dc2a19c46...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:11.495944ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043697/manifest.json
observed 6b5a6fc7ade850aa90ea2321381508e9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:11.476784ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043697/publication.md
observed c703322b9b3c9fdb1ee3ff0be3e8e447...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:11.459582ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043697/publication.txt
observed e16d61f79b9c5bc83ac7403c5a08ebf4...
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.