ISRC US6W62119803
Verified recording
US6W62119803 is “Buddy's Blues” by Stephen Sondheim,
registered on the CopyrightChains blockchain with CopyrightID
0x36cba8547ade2972ac695f3e6a02549a2cc36ecebd7e6c4b197cb30e5da66b18 and independently timestamped
in Bitcoin block 960266 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US6W62119803.
Recording identifiers
- ISRC
- US6W62119803
- Title
- Buddy's Blues
- Artist
- Stephen Sondheim
- CopyrightID (CopyrightChains transaction hash)
0x36cba8547ade2972ac695f3e6a02549a2cc36ecebd7e6c4b197cb30e5da66b18
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T14:44:50+00:00
- Bitcoin block
- 960266
- Canonical record hash
sha256:1a0cc06771993f62908bdf46c0c9f47e8387484f709aa0a978dec7b913e7e7ae- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US6W62119803
- Bitcoin block existence check
- https://blockstream.info/api/block/960266