ISRC GB8XC2104745
Verified recording
GB8XC2104745 is “Yesterdays” by Lee Konitz,
registered on the CopyrightChains blockchain with CopyrightID
0xf405c88e7dae59d7d4f05e7cc160b536b7baf69d94f63b8813a1ecff9ce2c432 and independently timestamped
in Bitcoin block 956302 on 2026-07-02.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GB8XC2104745.
Recording identifiers
- ISRC
- GB8XC2104745
- Title
- Yesterdays
- Artist
- Lee Konitz
- CopyrightID (CopyrightChains transaction hash)
0xf405c88e7dae59d7d4f05e7cc160b536b7baf69d94f63b8813a1ecff9ce2c432
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:30:09+00:00
- Bitcoin block
- 956302
- Canonical record hash
sha256:52fed9a1f1688193467ff4f3322d9f2af5a49b7af777e0fcc48ad88dfdf2114f- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GB8XC2104745
- Bitcoin block existence check
- https://blockstream.info/api/block/956302