OpenTechnical

OT-2026-000100481

Publication integrity record

Four cup vacuum gripper, four zone face, common isolation valve, single stage ejector, pressure sensor per zone, sustained 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-2026-000100481) never changes.

Identity and time

Publication numberOT-2026-000100481 · never reused
Internal UUID01a0aea3-66ef-795d-be8f-0667101329f5 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:12:19.463543Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000100481
StatusPUBLIC

Content hashes

Canonical text195be33ea7946f99d0258839f5cef1cf26d327b2f10753f140e55b5a53f8e323
Markdown1fcfadfee525cba360042d32671c63b4d04097996d62fbc7c3f9afed25d1a74b
PDF
Publication pagef9068440818cf4062f2cc12e98cc332a61308a2fcba6ceed82cdb1e2494e1bf3
Manifest6e68742ad0e2ed15fc8fcd66ac155b6957f8715ad7978920716412665fe60e27

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
Signaturevk3AB1yDzIqQOa8MkhrPPKP3Hmx4Paqu+UwRaJDHGizf9Qr/LhEbWbV6QdMdJd+RRwL3rxaZlMl6RYwZOZK3CQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:27:04Z
batch OT-TS-2026-W38-023 · RFC 3161 token · inclusion proof
root 095d30148a2ef87d42d7818ebe7543f9...

Independent retrieval

2026-09-17T09:27:14.305669ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000100481
observed f9068440818cf4062f2cc12e98cc332a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:27:14.288146ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000100481/manifest.json
observed 6e68742ad0e2ed15fc8fcd66ac155b69...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:27:14.269687ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000100481/publication.md
observed 1fcfadfee525cba360042d32671c63b4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:27:14.251622ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000100481/publication.txt
observed 195be33ea7946f99d0258839f5cef1cf...
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.