ISRC USUM71822381
Verified recording
USUM71822381 is “So Long, Marianne” by Brian Hyland,
registered on the CopyrightChains blockchain with CopyrightID
0x766c9a0c596975e6322e2421e09fb768f67eae2a5fa1a729cc297400e7543aec and independently timestamped
in Bitcoin block 956304 on 2026-07-02.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM71822381.
Recording identifiers
- ISRC
- USUM71822381
- Title
- So Long, Marianne
- Artist
- Brian Hyland
- CopyrightID (CopyrightChains transaction hash)
0x766c9a0c596975e6322e2421e09fb768f67eae2a5fa1a729cc297400e7543aec
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:55:08+00:00
- Bitcoin block
- 956304
- Canonical record hash
sha256:15b2e72a91829fa43179957f5366e3bb5c48e7dffcb31cd5b23c99293ad0da25- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM71822381
- Bitcoin block existence check
- https://blockstream.info/api/block/956304