OpenTechnical

OT-2026-000019493

Publication integrity record

Single cup vacuum gripper, common isolation valve, plant vacuum fed, supply line pressure sensor, 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-2026-000019493) never changes.

Identity and time

Publication numberOT-2026-000019493 · never reused
Internal UUID01a0ae6e-f393-7b07-8757-10228763644e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:02.050431Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000019493
StatusPUBLIC

Content hashes

Canonical textc65716f089f954fb527a3814b91e9c2e4ddf2c26f8c1b76200b1fd42f52b5690
Markdown0f89527c6291dcf61ede5650cc3e33e89746b7a092bed7f2ed2b703d82b2a2f2
PDF
Publication page0fcb3d6c3bf1db637daa63a0b4249cc592194e31356ece992d065f12ef70e1df
Manifest9fd6c4c2b5e8a115e8a0dafae261586c323e25ef15f85a3d509196e942a267de

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
Signature22PB38TeRyBVWwf4yNzrnIOnWlN2H3ZGNF/BioBcakVIrf4P8C85V6PJbjsqU/hUMtdRxEv+sSdpFTtCy5bvBw==
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

2026-09-17T11:58:55.198645ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019493
observed 0fcb3d6c3bf1db637daa63a0b4249cc5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:55.177731ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019493/manifest.json
observed 9fd6c4c2b5e8a115e8a0dafae261586c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:55.159034ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019493/publication.md
observed 0f89527c6291dcf61ede5650cc3e33e8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:55.141399ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019493/publication.txt
observed c65716f089f954fb527a3814b91e9c2e...
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.