OpenTechnical

OT-2026-000047731

Publication integrity record

Two bellows cup vacuum gripper, two zone face, common isolation valve, plant vacuum fed, pressure sensor per zone, pulsed 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-2026-000047731) never changes.

Identity and time

Publication numberOT-2026-000047731 · never reused
Internal UUID01a0ae7f-c41f-7ee4-a006-d2808a1972e2 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:33:24.028554Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000047731
StatusPUBLIC

Content hashes

Canonical text69f43728cd8091ec7d48a0695e3615f2a7884b80dd450a3a5680766c62bb2472
Markdownd10a7b0f114357d3587d5e7a6509388969e94bf44c0f49507abf1c97755499d7
PDF
Publication page9360d18b35ddc6a8be1ca20067fded0740d67f6e0e2b6844333b103273389208
Manifeste76030827b4a0ebfab2a30f7e7f44cac45c693d65b2e8834036303c5f9ed7c19

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
SignatureEu6wRfdAt1cT1HXIFDp0/AYWrR6l8m9eeK931+K5cGhuAClia+MnrtD21IUzrwFrHjD8qoSCn+uEdQu81qRZCw==
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

2026-09-17T11:05:36.244377ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047731
observed 9360d18b35ddc6a8be1ca20067fded07...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:36.225808ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047731/manifest.json
observed e76030827b4a0ebfab2a30f7e7f44cac...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:36.206321ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047731/publication.md
observed d10a7b0f114357d3587d5e7a65093889...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:36.187968ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047731/publication.txt
observed 69f43728cd8091ec7d48a0695e3615f2...
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.