OpenTechnical

OT-2026-000012169

Publication integrity record

Four cup vacuum gripper, four outlet manifold, pump fed, pulsed 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-2026-000012169) never changes.

Identity and time

Publication numberOT-2026-000012169 · never reused
Internal UUID01a0ae6d-39f5-796b-80a4-e002eae63f02 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:08.998406Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000012169
StatusPUBLIC

Content hashes

Canonical text9c04788d5a29d59b8db2e592582ee42ad236eadc0758915e6e159a389387b5e2
Markdown6396e553a2d1c8fde693b1de07cd59ac61848b68ce844c140b19dd5b341b8a61
PDF
Publication page245ba97c1bae346488e8d8d8365db01b2d8e19614bdabe738b365fa26d0be63c
Manifest4c8c2039eb21c426b9c1b46c26c4058101ed1dd5ac08d1b4e1b35e5eb15b74fe

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
SignaturerCQdK7uUhq9kK2kOpCJWeFSAD+m5H4lUWSvOrkaf8Zmhu6kwI2uBjZs0Vr3KhDbdRCxRX7DBmYJUhH9cmZCwAw==
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

2026-09-17T12:11:04.180459ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012169
observed 245ba97c1bae346488e8d8d8365db01b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:11:04.163894ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012169/manifest.json
observed 4c8c2039eb21c426b9c1b46c26c40581...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:11:04.144717ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012169/publication.md
observed 6396e553a2d1c8fde693b1de07cd59ac...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:11:04.126226ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012169/publication.txt
observed 9c04788d5a29d59b8db2e592582ee42a...
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.