OpenTechnical

OT-2026-000090963

Publication integrity record

Two cup vacuum gripper, two zone face, common isolation valve, pump fed, pressure sensor per zone, 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-2026-000090963) never changes.

Identity and time

Publication numberOT-2026-000090963 · never reused
Internal UUID01a0ae9c-c011-723f-a1cb-3c42169cb110 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:03.518217Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090963
StatusPUBLIC

Content hashes

Canonical textab095302ae39f59a04999041dcdb58a1ebdd8a78a432bbb5af84379702d8bfd8
Markdown533de30a2e4eda40e88a04c86370e406c504860c22c83a3a867da874827561cc
PDF
Publication page3a41db5d201242f9847449bdebf0e06f0d533635d4bffa93dcf30ca375a660a7
Manifest8973c078f306082f8abd677286de9986ca4a5fc3b99563c4120513075e585479

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
SignatureqU9voAReSxHS6/jESDuSZIFdcWnDvCKtU2EU5pjq5GEYIuBKsmtrnHf5tCK3YK97Dmd80sS3m5EyFUwNvncnBQ==
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

2026-09-17T09:44:11.195234ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090963
observed 3a41db5d201242f9847449bdebf0e06f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:11.179047ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090963/manifest.json
observed 8973c078f306082f8abd677286de9986...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:11.161509ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090963/publication.md
observed 533de30a2e4eda40e88a04c86370e406...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:11.144713ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090963/publication.txt
observed ab095302ae39f59a04999041dcdb58a1...
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.