OpenTechnical

OT-2026-000091449

Publication integrity record

Three bellows cup vacuum gripper, three zone face, three outlet manifold, plant vacuum fed, pressure sensor per zone, sustained blow-off before set-down

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-2026-000091449) never changes.

Identity and time

Publication numberOT-2026-000091449 · never reused
Internal UUID01a0ae9c-f16d-7597-8ac8-485d9fc87771 · 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-2026-000091449
StatusPUBLIC

Content hashes

Canonical textb2b1acfa47d4f75895dbdac9145323a3e39c2a5b7034344fbac3373253c6e725
Markdown3f23888a463ef69876185d00964d7b774a3c7ab65d625af681efe71e93ab977a
PDF
Publication page724fb5331fd54fb884c04af2f0897f23fdd1bb0b9c8d64d3f64cd5e1ae48528f
Manifestf0893cdd410d320180f1f56ee116ea4ba515049f0cd6df975c30eb86b089be32

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
SignatureskW9CImwiguzFyDH6JipSxl1CLBOQQXo6PiJI9J05BAwQG645ZuOViUXt1j3A4qDlEAFd2Qx2Xb7/7RLtIElCg==
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

2026-09-17T09:43:41.884053ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091449
observed 724fb5331fd54fb884c04af2f0897f23...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:41.865232ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091449/manifest.json
observed f0893cdd410d320180f1f56ee116ea4b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:41.846645ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091449/publication.md
observed 3f23888a463ef69876185d00964d7b77...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:41.830270ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091449/publication.txt
observed b2b1acfa47d4f75895dbdac9145323a3...
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.