OpenTechnical

OT-2026-000025251

Publication integrity record

Four cup vacuum gripper, four zone face, four outlet manifold, plant vacuum fed, 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-2026-000025251) never changes.

Identity and time

Publication numberOT-2026-000025251 · never reused
Internal UUID01a0ae71-5fa6-7801-8985-165b552500a8 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:17:40.790954Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000025251
StatusPUBLIC

Content hashes

Canonical text13f7f368d3526064dc7c360e3d0c8504f15d965338842a9cd6cffa2fc3464b8e
Markdownfbc1dbbfc27af617e5483f9759327d221be4a9710276f79380f06ca52bde2b95
PDF
Publication page986d1b83e72600987636f99dc3bee1422d91f5ef3cb6a6035f5ec11bc1cf4bc5
Manifest58b426242f5063fda5abec763cca1a618d23f1cd2e93335138b1efa0072766ed

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
SignatureDB9cC1rHM28xbBOgsohZAkbZpCPCqfyGKcEObzRG2fEQbfovqu2kvqFfWluKt85B0HzX3NAOEYR+fNn/uFpGDQ==
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

2026-09-17T11:47:15.442343ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000025251
observed 986d1b83e72600987636f99dc3bee142...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:47:15.425231ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000025251/manifest.json
observed 58b426242f5063fda5abec763cca1a61...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:47:15.408494ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000025251/publication.md
observed fbc1dbbfc27af617e5483f9759327d22...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:47:15.391983ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000025251/publication.txt
observed 13f7f368d3526064dc7c360e3d0c8504...
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.