Chunkstore — public file endpoint
cache07.chunkstore.dev

Reference objects for transfer validation and storage checks.
Files contain deterministic synthetic data; they are not executable applications.
This endpoint is read-only. Uploads and user accounts are not provided.
1 MiB = 1,048,576 bytes.

Objects:
sample-1m-caa198986ef2.bin: 1048576 bytes; SHA-256 07ba5561ed47425aa3db02426c9bb5b8e186cd7da30cfc63ca2df4fd9060b3f2
volume-16m-caa198986ef2.bin: 16777216 bytes; SHA-256 d92f68af904875a3bb7240a3452a9337b1a0c535e42dcb5c6ff84f95929a0d75
sample-64m-caa198986ef2.bin: 67108864 bytes; SHA-256 48f449e3cf78b002c21f8ff42c407e3f91aab462a6cd9b8bad5f42bd3ce0bdb7
sample-256m-caa198986ef2.bin: 268435456 bytes; SHA-256 4aeb384c604f75f69dff33f078bb1654de64cb46abef254ffb577662fa0541db

Download one object:
curl --fail --location --output sample-1m-caa198986ef2.bin https://cache07.chunkstore.dev/files/v2/caa198986ef2/sample-1m-caa198986ef2.bin

Resume an interrupted download:
curl --fail --location --continue-at - --output sample-256m-caa198986ef2.bin https://cache07.chunkstore.dev/files/v2/caa198986ef2/sample-256m-caa198986ef2.bin

Verify a downloaded object:
printf '%s  %s\n' '07ba5561ed47425aa3db02426c9bb5b8e186cd7da30cfc63ca2df4fd9060b3f2' 'sample-1m-caa198986ef2.bin' | sha256sum --check

Verify against the manifest:
curl --fail --location --output SHA256SUMS https://cache07.chunkstore.dev/integrity/caa198986ef2/SHA256SUMS
sha256sum --check --ignore-missing SHA256SUMS

HEAD returns metadata without a body. Range requests return HTTP 206.
Requests beyond the end of an object return HTTP 416.
Use If-None-Match with the current ETag for HTTP 304 without a body.
The optional browser connection check receives one 8 MiB sample per click.
The result includes request latency and does not describe a bandwidth guarantee.