ISRC QMMZN1300564
Verified recording
QMMZN1300564 is “Goodbye Weekend” by Mac DeMarco,
registered on the CopyrightChains blockchain with CopyrightID
0xdefcb95b853adee5c793f6cb65be44f88cee47b61712c2f0cc18ced1e98addd3 and independently timestamped
in Bitcoin block 953513 on 2026-06-13.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMMZN1300564.
Recording identifiers
- ISRC
- QMMZN1300564
- Title
- Goodbye Weekend
- Artist
- Mac DeMarco
- CopyrightID (CopyrightChains transaction hash)
0xdefcb95b853adee5c793f6cb65be44f88cee47b61712c2f0cc18ced1e98addd3
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-06-13T12:47:07+00:00
- Bitcoin block
- 953513
- Canonical record hash
sha256:f2e7515a2cf8d7c207295efc803baea4fb6153c7e1eeb98cf0de0619012f3bb8- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMMZN1300564
- Bitcoin block existence check
- https://blockstream.info/api/block/953513