OpenTechnical

OT-2026-000028125

Publication integrity record

Two cup vacuum gripper, two outlet manifold, plant vacuum fed, manifold pressure sensor, 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-2026-000028125) never changes.

Identity and time

Publication numberOT-2026-000028125 · never reused
Internal UUID01a0ae72-a520-7cdc-9095-11e6bd7d55ab · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:04.113553Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000028125
StatusPUBLIC

Content hashes

Canonical text1e009bdf4c968399ff757109bb0ea7bfadb006cc6722258d14645e98250a47ea
Markdownefa46b0220000d771e35c248b8cf259b8aea87674653dc0e8e6afb063bc89d1d
PDF
Publication page12c11794849eca9a7b38ba0c8b458bd59e8665d921022012f11e47023b2f6ffd
Manifest90aa318be044d7796275fa71fa7b1a885741ab016ce5fb9b899defbbe4c4f70e

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
SignatureZH5Fa1kS2Ztylvp0OcVrfWVU6T3gQkiXD+nTLHqzwLkpI0qeyKUCyt1Bs+VI1d++KQjlYhhq/okBuLxxXEN/Ag==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:42:28.492143ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028125
observed 12c11794849eca9a7b38ba0c8b458bd5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:28.475662ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028125/manifest.json
observed 90aa318be044d7796275fa71fa7b1a88...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:28.458949ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028125/publication.md
observed efa46b0220000d771e35c248b8cf259b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:28.436212ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028125/publication.txt
observed 1e009bdf4c968399ff757109bb0ea7bf...
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.