OpenTechnical

OT-2026-000074345

Publication integrity record

Three cup vacuum gripper, three zone face, three outlet manifold, pump fed, manifold pressure sensor, 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-2026-000074345) never changes.

Identity and time

Publication numberOT-2026-000074345 · never reused
Internal UUID01a0ae93-7179-7f3f-91d8-9c886199bd08 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:53.574555Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000074345
StatusPUBLIC

Content hashes

Canonical textbf665bad4c7e4397d2101ddd7120d21ff5492ce817330bb8999e0208146b13e1
Markdowna175b78fd74bc534f45c729cbdcae2db1ff9b69747edd8d9e95085c79170add2
PDF
Publication page02dd72ed8ab1f4a7fdde662b29a623dbe0204dc7e3b72baa5210e2d50f0e8f7f
Manifestb2349ac6984074ac16739cb0447471c60805c7b149756be308aec077ff79bbe5

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
SignaturebwojxksKCpOC3eJYZQEjgZDLHy2C1kStlPXKdspDI9HwV7q6WBZiRGMnuq1+9Lo0I17RwIyYTUb+MAifGVFpAQ==
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

2026-09-17T10:19:16.089919ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074345
observed 02dd72ed8ab1f4a7fdde662b29a623db...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:16.069459ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074345/manifest.json
observed b2349ac6984074ac16739cb0447471c6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:16.052234ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074345/publication.md
observed a175b78fd74bc534f45c729cbdcae2db...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:16.023278ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074345/publication.txt
observed bf665bad4c7e4397d2101ddd7120d21f...
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.