OpenTechnical

OT-2026-000030896

Publication integrity record

Two bellows 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-2026-000030896) never changes.

Identity and time

Publication numberOT-2026-000030896 · never reused
Internal UUID01a0ae74-3fb6-7cf4-8036-f2c57ab00109 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:20:49.275361Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000030896
StatusPUBLIC

Content hashes

Canonical text99c721260ce03d26e3c1976f41cda5e1a37f8ebb0a4ff6251ceb143a6375d682
Markdownc1a746bd2552b88d8e31b7ec4e8ca070d49fb062d86bbd67bc99a098d898062f
PDF
Publication pagecd8adfd5c07211fedfb2a61b518ce03e11fddd13c4e175f66ebff67c62e4c769
Manifest34f9a9b3421588330bcb6d12244f0121f92b8e5ba3e4ef8d2bd54a279db6ea0a

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
SignaturejZCNkP1S3Flzq9vdtywwyDx9dcabegyqCQmWbd+hDelDIv/5oFOOsnPhTcXJujHDCWIQCLdFInYEleDgdqeBAg==
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

2026-09-17T11:36:52.871583ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030896
observed cd8adfd5c07211fedfb2a61b518ce03e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:52.855006ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030896/manifest.json
observed 34f9a9b3421588330bcb6d12244f0121...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:52.829429ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030896/publication.md
observed c1a746bd2552b88d8e31b7ec4e8ca070...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:52.810122ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030896/publication.txt
observed 99c721260ce03d26e3c1976f41cda5e1...
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.