OpenTechnical

OT-2026-000086545

Publication integrity record

Four cup vacuum gripper, four zone face, common isolation valve, pump fed, sustained blow-off before 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-2026-000086545) never changes.

Identity and time

Publication numberOT-2026-000086545 · never reused
Internal UUID01a0ae9a-2c98-7896-a363-6a889afa1ffe · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:02:14.823225Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000086545
StatusPUBLIC

Content hashes

Canonical textda0e3973ad9823b187cc5da6dcc14d888dd75c4ad3b7d1a9d698e42a39dbf202
Markdowned44a07e724442889101309114281d9177b86daf6ed9f792852af8e889ff351e
PDF
Publication paged123fff59dbb099fdaad802a2080a1aac5d86a98ea43a6dcc289a4248603d93c
Manifest54ac08af5e24ab04dccbe712c480341ec839e56fe2a32ca3d69f31f485a71345

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
SignatureI26aMV0ynui2vagpkWMjT1YPSApgi3WeMc21aX3dm2iaAAJkQ3bnzP4bpM8cLE+VGCtIEx1CH+HguGwAFFQDDQ==
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

2026-09-17T09:52:22.390752ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086545
observed d123fff59dbb099fdaad802a2080a1aa...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:52:22.374050ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086545/manifest.json
observed 54ac08af5e24ab04dccbe712c480341e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:52:22.356865ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086545/publication.md
observed ed44a07e724442889101309114281d91...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:52:22.338704ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086545/publication.txt
observed da0e3973ad9823b187cc5da6dcc14d88...
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.