OpenTechnical

OT-2026-000062221

Publication integrity record

Single cup vacuum gripper, common isolation valve, single stage ejector, supply line pressure sensor, vented 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-2026-000062221) never changes.

Identity and time

Publication numberOT-2026-000062221 · never reused
Internal UUID01a0ae8c-0abd-7f4d-aecf-5bd6178b524f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:46:48.542263Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000062221
StatusPUBLIC

Content hashes

Canonical text227c91de0bacf3c3590a1b0824998bca5b260f36f6e64634665f7969030911ba
Markdown31a472b4e73429b7e87f9a9506fce32b91b2c7b89076012830f87b3f15e0a457
PDF
Publication page98b5765253b9b1aadb3edd017da1df58e1a9b9400fbd00791cc8fef349e8e153
Manifestaf4bbd4d6e96199a1cdcc39a90a8ee28b0f0e08b671d881f87287dfe3558f7d2

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
SignatureK4JBYFPKGh2O5JasaEZxDWyxJzd+zt07bzp5vsrE3Sgf1DLqMj2Os+3W0bbUlF5pkYD3bkF9Iqypms8a0YqVAw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T10:39:29.566958ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000062221
observed 98b5765253b9b1aadb3edd017da1df58...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:39:29.548925ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000062221/manifest.json
observed af4bbd4d6e96199a1cdcc39a90a8ee28...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:39:29.530442ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000062221/publication.md
observed 31a472b4e73429b7e87f9a9506fce32b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:39:29.513042ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000062221/publication.txt
observed 227c91de0bacf3c3590a1b0824998bca...
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.