OpenTechnical

OT-2026-000067944

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, plant vacuum fed, supply line pressure sensor, 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-2026-000067944) never changes.

Identity and time

Publication numberOT-2026-000067944 · never reused
Internal UUID01a0ae8f-c4fd-79d5-b78b-71452e6ec4ae · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:50:52.812402Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000067944
StatusPUBLIC

Content hashes

Canonical text8658a75b6021bfb835608a5ef6d3d07eca87c6ff50f845f82b45f8f144bd3456
Markdowna62947e8dfab889e478364e663761848fd23f0d321a7fde88062763af877c332
PDF
Publication page74fe6620df1876b6acd7f4bb8c2c4ea32533e5829a408f9867086c958fa3c258
Manifest97abc03b5c0719d792367b0b81d766fb859857133f2ec349ac12df5617d5e0dd

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
SignaturerrE74jQJ9enCoi1hSW8W3g2PSUgtZZQVmuCKO5RR4eGSYaKZTW5XCXn74bUesCYjKbvYJwoZ+Te01Ycx4EQPDw==
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

2026-09-17T10:30:21.762087ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067944
observed 74fe6620df1876b6acd7f4bb8c2c4ea3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:30:21.744596ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067944/manifest.json
observed 97abc03b5c0719d792367b0b81d766fb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:30:21.726508ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067944/publication.md
observed a62947e8dfab889e478364e663761848...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:30:21.705745ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067944/publication.txt
observed 8658a75b6021bfb835608a5ef6d3d07e...
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.