OpenTechnical

OT-2026-000091240

Publication integrity record

Two bellows cup vacuum gripper, two zone face, two outlet manifold, plant vacuum fed, 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-2026-000091240) never changes.

Identity and time

Publication numberOT-2026-000091240 · never reused
Internal UUID01a0ae9c-f16c-76fc-a4ac-23619c89fa2c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:16.158740Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000091240
StatusPUBLIC

Content hashes

Canonical text16d17a47e4d3dcbec15344a3e9b2199d18811b440b78213b22bf23edb517fec7
Markdown9576b49da7be289cdd9bc1b4881dd1eb6688c64ab4315b176a0813da4ff86213
PDF
Publication page252002264e4fb3e6b8235d6475c7adcfc899a3d6fd430de48dbc48161be8604e
Manifest7f255887befa807e1df4f68c762bbec921eb9ddfcdcbcd59f47a727249d44b21

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
SignatureC4KeMVtuVn5R6pHPL87Yri2rXPN+aqUOWJdGR9MVPexqjRMFtWAedO9/F4XHIPoaRFi3motJBLNzfvKfgGWWAA==
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

2026-09-17T09:43:24.869551ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091240
observed 252002264e4fb3e6b8235d6475c7adcf...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:24.851905ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091240/manifest.json
observed 7f255887befa807e1df4f68c762bbec9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:24.834430ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091240/publication.md
observed 9576b49da7be289cdd9bc1b4881dd1eb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:24.815662ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091240/publication.txt
observed 16d17a47e4d3dcbec15344a3e9b2199d...
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.