OpenTechnical

OT-2026-000086546

Publication integrity record

Four cup vacuum gripper, four zone face, 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-2026-000086546) never changes.

Identity and time

Publication numberOT-2026-000086546 · never reused
Internal UUID01a0ae9a-2c98-70d4-be96-34303bbdebde · 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-2026-000086546
StatusPUBLIC

Content hashes

Canonical text14ac1fcaacaa1c38d3db26800eee93d365df747ca9def83037b3b1842190efee
Markdown847a72788c6f8cac0eecb8fbf229fc900ba03b4105f8fd7c6f2981eb2f626026
PDF
Publication page02e09373c746fdde9619bed9f4e319377d38ce4dba9c1f14d1607dc7560a4e76
Manifest976f094886328f94267b90d1b545c3e5252b779dcf5e8f91ea9875185c09cc95

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
SignaturedmnaBhzW/WuzPcj7tPKO/ltS1lncVfc1px9ugNxKGXmggpvDut+WF6HPKSyho7xRrR1E4W/rnPZ9qdSTOG2XDg==
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

2026-09-17T09:52:22.460974ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086546
observed 02e09373c746fdde9619bed9f4e31937...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:52:22.444360ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086546/manifest.json
observed 976f094886328f94267b90d1b545c3e5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:52:22.426888ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086546/publication.md
observed 847a72788c6f8cac0eecb8fbf229fc90...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:52:22.410014ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086546/publication.txt
observed 14ac1fcaacaa1c38d3db26800eee93d3...
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.