ISRC US9931303743
Verified recording
US9931303743 is “Fall Calls” by WDR Big Band,
registered on the CopyrightChains blockchain with CopyrightID
0x69745ad3a59683d2f5d30392efe0532349ca8c1898b0b41111a813c22f4fb16b and independently timestamped
in Bitcoin block 960376 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US9931303743.
Recording identifiers
- ISRC
- US9931303743
- Title
- Fall Calls
- Artist
- WDR Big Band
- CopyrightID (CopyrightChains transaction hash)
0x69745ad3a59683d2f5d30392efe0532349ca8c1898b0b41111a813c22f4fb16b
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T09:09:19+00:00
- Bitcoin block
- 960376
- Canonical record hash
sha256:d1cacc7fac2b29ad0d510a35bd8b32638b5da97499a999228cb4da18dd91516d- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US9931303743
- Bitcoin block existence check
- https://blockstream.info/api/block/960376