ISRC GBUM70814485
Verified recording
GBUM70814485 is “Medley: What a Wonderful World / A Nightingale Sang In Berkeley Square / (I Left My Heart) In San Francisco” by Max Bygraves,
registered on the CopyrightChains blockchain with CopyrightID
0xf037044685fb8b494d4a95c38297674ea5d4365fa5564c4d8aa53a043d7f7742 and independently timestamped
in Bitcoin block 960250 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBUM70814485.
Recording identifiers
- ISRC
- GBUM70814485
- Title
- Medley: What a Wonderful World / A Nightingale Sang In Berkeley Square / (I Left My Heart) In San Francisco
- Artist
- Max Bygraves
- CopyrightID (CopyrightChains transaction hash)
0xf037044685fb8b494d4a95c38297674ea5d4365fa5564c4d8aa53a043d7f7742
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T11:13:28+00:00
- Bitcoin block
- 960250
- Canonical record hash
sha256:f37016a4dbc666f63b609fb41b5d8e9f2001d09340cfe9292a04882a2a1e56e5- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBUM70814485
- Bitcoin block existence check
- https://blockstream.info/api/block/960250
Full record
Track page: Medley: What a Wonderful World / A Nightingale Sang In Berkeley Square / (I Left My Heart) In San Francisco · Machine-readable JSON-LD