ISRC US6W62119756
Verified recording
US6W62119756 is “Sooner or Later” by Stephen Sondheim,
registered on the CopyrightChains blockchain with CopyrightID
0xd920b37a30b5ac70614a894c7b2543a978b68b2991340f857a4e6d7f8dcbe689 and independently timestamped
in Bitcoin block 960376 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US6W62119756.
Recording identifiers
- ISRC
- US6W62119756
- Title
- Sooner or Later
- Artist
- Stephen Sondheim
- CopyrightID (CopyrightChains transaction hash)
0xd920b37a30b5ac70614a894c7b2543a978b68b2991340f857a4e6d7f8dcbe689
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T09:09:19+00:00
- Bitcoin block
- 960376
- Canonical record hash
sha256:dfa87e969fd5c6c2daf8f91d8b64e690e2881c066ccedd9c9952da5c4e1ab538- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US6W62119756
- Bitcoin block existence check
- https://blockstream.info/api/block/960376