OpenTechnical

OT-2026-000047445

Publication integrity record

Four cup vacuum gripper, four outlet manifold, plant vacuum fed, manifold pressure sensor, sustained blow-off after 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-2026-000047445) never changes.

Identity and time

Publication numberOT-2026-000047445 · never reused
Internal UUID01a0ae7f-3e58-7a3b-9396-f63bbc37ac07 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:32:49.774666Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000047445
StatusPUBLIC

Content hashes

Canonical text393349e2fb43e2a0f9cd88521bb847e864381a2ce7ed680f888d83af5bacbbd1
Markdown42a21d7b78703559d11b5c21ab185b2d208c395c51a9489bfccc0d90ffb3ac42
PDF
Publication pagea374569bb91cc9bc62ad1327906056495b48cd04cb3bb40536ec8b39b38fb912
Manifest2add56d95b3826bb2c26c998068625a8eff1051aa119909e30ee5893aacebc50

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
Signature4Xa3Y9KzjDGajaWs4Euej1da1ZE0mEFQCZSFEVd1bIA/xNSFHgwIiGSlfq5LYJJ0/oBcrcfcVzwaHk2fFD2pAQ==
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

2026-09-17T11:06:28.407089ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047445
observed a374569bb91cc9bc62ad132790605649...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:06:28.387801ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047445/manifest.json
observed 2add56d95b3826bb2c26c998068625a8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:06:28.370080ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047445/publication.md
observed 42a21d7b78703559d11b5c21ab185b2d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:06:28.351399ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047445/publication.txt
observed 393349e2fb43e2a0f9cd88521bb847e8...
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.