ISRC USSM10013406
Verified recording
USSM10013406 is “So Long, Marianne” by Leonard Cohen,
registered on the CopyrightChains blockchain with CopyrightID
0xe1dff1e42e921b7cea7ba223e931432203d4ab7872637371d8a089d7e71ec26a 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/USSM10013406.
Recording identifiers
- ISRC
- USSM10013406
- Title
- So Long, Marianne
- Artist
- Leonard Cohen
- CopyrightID (CopyrightChains transaction hash)
0xe1dff1e42e921b7cea7ba223e931432203d4ab7872637371d8a089d7e71ec26a
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-06-13T12:47:07+00:00
- Bitcoin block
- 953513
- Canonical record hash
sha256:3a7fbb17a9eab79113389d5f4aacb78829b5b1586b02a71d1d7c3ef3939f9dae- Verification API (seven-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10013406
- Bitcoin block existence check
- https://blockstream.info/api/block/953513