ISRC QMMZN1300699
Verified recording
QMMZN1300699 is “Goodbye Weekend” by Mac DeMarco,
registered on the CopyrightChains blockchain with CopyrightID
0xb3c008fe855a1ad3eff7d18f144e4a320b5579c13eea6257b13329a17fab16b2 and independently timestamped
in Bitcoin block 953536 on 2026-06-13.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMMZN1300699.
Recording identifiers
- ISRC
- QMMZN1300699
- Title
- Goodbye Weekend
- Artist
- Mac DeMarco
- CopyrightID (CopyrightChains transaction hash)
0xb3c008fe855a1ad3eff7d18f144e4a320b5579c13eea6257b13329a17fab16b2
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-06-13T17:25:41+00:00
- Bitcoin block
- 953536
- Canonical record hash
sha256:cd24fc3e9b7cd97b21bede6d8ba97e3bcb2c3a24227cabc117f55c3e126b4d71- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMMZN1300699
- Bitcoin block existence check
- https://blockstream.info/api/block/953536