OpenTechnical

OT-2026-000023261

Publication integrity record

Two cup vacuum gripper, two outlet manifold, common isolation valve, pump fed, 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-2026-000023261) never changes.

Identity and time

Publication numberOT-2026-000023261 · never reused
Internal UUID01a0ae70-7267-78e9-a280-5f2f79d26fd5 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:16:40.056870Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000023261
StatusPUBLIC

Content hashes

Canonical text76670c4e2269b4b471e9169bc4ff97bc0f36b01428800109a8472c3f958e04d0
Markdownf3f8e9152096a441cac48db3d7aca53f9d63bd9f619639e9da6a5f429d6336fb
PDF
Publication page9f8f1ca67a69bdf092ea48de61d0b98a98b65a8cc71ef1439bc457b32ae79c2b
Manifest20ea0f369a8288faac95a5734c3da0c524d59e3d497cbf1e6455c986f36cfb48

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
Signature2ss3oGGxMHMtaE/YDD0Hs28OZoXHInGFcjej6lLXLreLd/wYW3VTZsikA2aoYJ68aQYwyIknipOdxYKiv5d3Bg==
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

2026-09-17T11:51:19.870084ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000023261
observed 9f8f1ca67a69bdf092ea48de61d0b98a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:51:19.851455ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000023261/manifest.json
observed 20ea0f369a8288faac95a5734c3da0c5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:51:19.826739ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000023261/publication.md
observed f3f8e9152096a441cac48db3d7aca53f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:51:19.809019ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000023261/publication.txt
observed 76670c4e2269b4b471e9169bc4ff97bc...
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.