ISRC QZNWQ2238469
Verified recording
QZNWQ2238469 is “Bleeding Hearts” by John Mackk,
registered on the CopyrightChains blockchain with CopyrightID
0xc4c17f0092d83e739ead93fa2f85d9a4636f9cdbf1fc1e9305cb2ce533d84ee0 and independently timestamped
in Bitcoin block 960500 on 2026-08-01.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWQ2238469.
Recording identifiers
- ISRC
- QZNWQ2238469
- Title
- Bleeding Hearts
- Artist
- John Mackk
- CopyrightID (CopyrightChains transaction hash)
0xc4c17f0092d83e739ead93fa2f85d9a4636f9cdbf1fc1e9305cb2ce533d84ee0
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-08-01T03:13:03+00:00
- Bitcoin block
- 960500
- Canonical record hash
sha256:8c735f5e99f90a40c611384bdea3d571f1418da3000e5531fdd749b80a04a9b0- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWQ2238469
- Bitcoin block existence check
- https://blockstream.info/api/block/960500