OpenTechnical

OT-2026-000087843

Publication integrity record

Three cup vacuum gripper, three zone face, per zone isolation, plant vacuum fed, supply line 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-2026-000087843) never changes.

Identity and time

Publication numberOT-2026-000087843 · never reused
Internal UUID01a0ae9b-1aa5-7077-b6f9-3c2588f1c1bc · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:03:15.638297Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000087843
StatusPUBLIC

Content hashes

Canonical text6e4a57bc2178c9f4953700868c8936b0a2cf07c9a37fe4ae90582b663535f550
Markdown8db7726f8727930351edeaa20b6e18b3bb97cedc5dd3805e6ba96254663656ac
PDF
Publication page72cb3fc1a18e6a72bd6e088f89088c9d3fa7e323556e634bd308910479ef7d81
Manifest042b0f23fd97ba3f31f922f5c30778dce8185cf0320b244133315f670b0c3a52

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
SignatureSByDClOtsGvzXX7EfqCPdQ/6S2ynPg3RG7SDijoTgkZbyA05IXEo+95f92afRyh4/5UKPDUQwYdTd7rJ5IFLDA==
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

2026-09-17T09:49:05.057655ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087843
observed 72cb3fc1a18e6a72bd6e088f89088c9d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:05.040057ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087843/manifest.json
observed 042b0f23fd97ba3f31f922f5c30778dc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:05.020772ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087843/publication.md
observed 8db7726f8727930351edeaa20b6e18b3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:05.002479ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087843/publication.txt
observed 6e4a57bc2178c9f4953700868c8936b0...
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.