OpenTechnical

OT-2026-000031434

Publication integrity record

Three pad foam vacuum gripper, three outlet manifold, plant vacuum fed, pulsed 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-2026-000031434) never changes.

Identity and time

Publication numberOT-2026-000031434 · never reused
Internal UUID01a0ae74-87ad-7bf0-b542-19ddaa4a968a · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:21:07.653052Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000031434
StatusPUBLIC

Content hashes

Canonical textae5309bebea798d706468613d7d5665e6989b8c0f906e657d6ff006c5bff1dcd
Markdowne53a4a6cdeceb918777d7529967e9cd339ca64d4ef663bebd26ecaa073620c24
PDF
Publication page11687e175633d9b0008f027f8dcfdd514f1da6ae96eac6a4b8dbc24b5f5fbd8c
Manifest7d084ae638d6687778311017bf226fd09e4546f88369a240ba920ddde6da922e

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
SignatureZK2KTQpEuC6uTz4F4NynCsEPD4gJh7oEUmi2rA5xbc+fQYH5momxn6v4vIh/0t7B2cvuasDRIt6hvu1cRQvFBg==
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

2026-09-17T11:36:09.344318ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031434
observed 11687e175633d9b0008f027f8dcfdd51...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:09.327209ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031434/manifest.json
observed 7d084ae638d6687778311017bf226fd0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:09.309955ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031434/publication.md
observed e53a4a6cdeceb918777d7529967e9cd3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:09.292464ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031434/publication.txt
observed ae5309bebea798d706468613d7d5665e...
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.