ISRC GBBBA4360231
Verified recording
GBBBA4360231 is “I've Heard That Song Before” by Jule Styne,
registered on the CopyrightChains blockchain with CopyrightID
0x8c28a89b4272a660ce4132441cb4ae8ddc63b3a3e1d90ee768bffcb5f4d7947a 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/GBBBA4360231.
Recording identifiers
- ISRC
- GBBBA4360231
- Title
- I've Heard That Song Before
- Artist
- Jule Styne
- CopyrightID (CopyrightChains transaction hash)
0x8c28a89b4272a660ce4132441cb4ae8ddc63b3a3e1d90ee768bffcb5f4d7947a
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:30:09+00:00
- Bitcoin block
- 956302
- Canonical record hash
sha256:25157402765d0ab07ad0b0a178c01cad93d2283d7529af36f004edd7b0443b89- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBA4360231
- Bitcoin block existence check
- https://blockstream.info/api/block/956302
Full record
Track page: I've Heard That Song Before · Machine-readable JSON-LD