OpenTechnical

OT-2026-000042438

Publication integrity record

Four pad foam vacuum gripper, four outlet manifold, single stage ejector, 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-2026-000042438) never changes.

Identity and time

Publication numberOT-2026-000042438 · never reused
Internal UUID01a0ae7a-5d75-7edf-9ed5-b0cbbe35a5c8 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:27:30.052779Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000042438
StatusPUBLIC

Content hashes

Canonical text22d13836ea5dd589cbdeca1c52dc739ae6e22ea7ac02e981443bea6239c79c3b
Markdown3c99d3d9d8d5021f37dfa7189d1b56e6b7076762d6bb60a13a8d70ea87769391
PDF
Publication page943f2bc7cfe0ee90722662b9a3ee86d7b0a2ababa227dfd3bccec72ceb99320f
Manifest35140b157f1f835928050e77d580498302ab60309f57395b5f570123b7db0e94

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
SignaturejrFaVuuzz8Fcd63bQcVdRc1rNWmB0okDRxCZKgiHT6gddk19j5NKvfSfPZqqxOrwm0d6uqzKdYzpzOMsyjxLAw==
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

2026-09-17T11:16:14.448646ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042438
observed 943f2bc7cfe0ee90722662b9a3ee86d7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:16:14.430521ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042438/manifest.json
observed 35140b157f1f835928050e77d5804983...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:16:14.412264ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042438/publication.md
observed 3c99d3d9d8d5021f37dfa7189d1b56e6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:16:14.393967ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042438/publication.txt
observed 22d13836ea5dd589cbdeca1c52dc739a...
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.