OpenTechnical

OT-2026-000000019

Publication integrity record

Delta Robot Payload Extension with Upper Arm Linkage Counterweighting

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-2026-000000019) never changes.

Identity and time

Publication numberOT-2026-000000019 · never reused
Internal UUID01a0a671-f07c-7300-ba8f-cd03f1379e09 · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:01:20.126999Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000000019
StatusPUBLIC

Content hashes

Canonical textce96156d0c16f6f6d3894ae6e52023cb7422e43f3f2747a4abef6481ef7051b6
Markdown9f5490de3162e9821749dc93bcb9aec65c077eda48e35dcaaccff7bcba868ab0
PDF
Publication pagef7d0f496e5c5b1726f8307847c6eb5e53339f42a09c06b21df63af9c1bb769a0
Manifest17c10558797b45f3d933918dd576d3f814405c9ddfbafb36a04f5fb3660600b2

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
SignatureHtvYpqSp8z4ikL0XzuCMIXjLBz1ouyuXLidF3a+zu7qon8/DSISwLcN1uE/OEK2qIRmB97ptoUDSrWGQndrWDA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-15T19:07:03Z
batch OT-TS-2026-W38-001 · RFC 3161 token · inclusion proof
root 6369baadb1a246009d149835804d20ba...

Independent retrieval

2026-09-15T21:00:20.624160ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000019
observed f7d0f496e5c5b1726f8307847c6eb5e5...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T21:00:20.596133ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000019/manifest.json
observed 17c10558797b45f3d933918dd576d3f8...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T21:00:20.581811ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000019/publication.txt
observed ce96156d0c16f6f6d3894ae6e52023cb...
fetched by instance-3.rotem.ai from 127.0.0.1, 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

OT-CUSTODY-2026-W38OpenTechnical-Custody-2026-W38.tar.zst
f2fc69d02142424a578267e5e3a6d3bb... · 402,218,449 bytes · held by held on site pending an external custodian · retention permanent