ISRC USB4U0850674
Verified recording
USB4U0850674 is “Waltz (Opus 39, No. 15)” by Traditional,
registered on the CopyrightChains blockchain with CopyrightID
0xafd218a6695853b962d896153ecf46654bad328bf3aa8ba6c5b2c55c567e6cb5 and independently timestamped
in Bitcoin block 960220 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB4U0850674.
Recording identifiers
- ISRC
- USB4U0850674
- Title
- Waltz (Opus 39, No. 15)
- Artist
- Traditional
- CopyrightID (CopyrightChains transaction hash)
0xafd218a6695853b962d896153ecf46654bad328bf3aa8ba6c5b2c55c567e6cb5
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T07:28:30+00:00
- Bitcoin block
- 960220
- Canonical record hash
sha256:b08df6e658c0dd68a020fb947a53c522f0208fca084ce3909dd0a4504f9964ac- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB4U0850674
- Bitcoin block existence check
- https://blockstream.info/api/block/960220
Full record
Track page: Waltz (Opus 39, No. 15) · Machine-readable JSON-LD