ISRC CH6631451601
Verified recording
CH6631451601 is “The First Day of Spring” by Leroy Anderson,
registered on the CopyrightChains blockchain with CopyrightID
0x729eef2790396e5a83602f3e24208f3405d74ccffdfed2d7ce2cca6c73feb843 and independently timestamped
in Bitcoin block 960160 on 2026-07-29.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH6631451601.
Recording identifiers
- ISRC
- CH6631451601
- Title
- The First Day of Spring
- Artist
- Leroy Anderson
- CopyrightID (CopyrightChains transaction hash)
0x729eef2790396e5a83602f3e24208f3405d74ccffdfed2d7ce2cca6c73feb843
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-29T22:48:59+00:00
- Bitcoin block
- 960160
- Canonical record hash
sha256:369cbc3c41aff7ca8cb1fad0fe6735b4bdcf2c4c3b4c82a595f7fcc14dcee0dd- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH6631451601
- Bitcoin block existence check
- https://blockstream.info/api/block/960160
Full record
Track page: The First Day of Spring · Machine-readable JSON-LD