OpenTechnical

OT-2026-000073300

Publication integrity record

Two bellows cup vacuum gripper, two outlet manifold, pump fed, manifold pressure sensor, vented 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-2026-000073300) never changes.

Identity and time

Publication numberOT-2026-000073300 · never reused
Internal UUID01a0ae92-efb7-7aa6-b3e1-1ae24fd51fcb · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:20.363042Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000073300
StatusPUBLIC

Content hashes

Canonical textab8c217018a9fd33742202e51fdf0101977f93db63d8ef613193a18f4536c7a9
Markdown4352f0b6fdc4fbad644595788c37dcc9f9f5c353bb1bf9cec955efdef9746e08
PDF
Publication page981fa6eee83a2a96cea3dc1d3236b4ecd656d9d26452acd2052124fc0c05a338
Manifesta96b2a6afbec211f15daf68a6029c7626c65feddcdc798b3b928f62c08550315

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
SignaturesRrqPgGNuOzXDOllu3u5Y8qHjbxeDUz+ygcGMx/tXh2c4qQRxXHv7n+eaNwX4xmTMtg6SM/E4jscvymz0irNBA==
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

2026-09-17T10:21:14.856128ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073300
observed 981fa6eee83a2a96cea3dc1d3236b4ec...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:14.837360ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073300/manifest.json
observed a96b2a6afbec211f15daf68a6029c762...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:14.788982ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073300/publication.md
observed 4352f0b6fdc4fbad644595788c37dcc9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:14.745851ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073300/publication.txt
observed ab8c217018a9fd33742202e51fdf0101...
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.