ISRC GBBBA7470706
Verified recording
GBBBA7470706 is “Sonata V” by John Cage,
registered on the CopyrightChains blockchain with CopyrightID
0x2554bd5c22554b638da8387515f6dd6fa90bdc688185d8dc88f0e1c6b7bc5396 and independently timestamped
in Bitcoin block 957120 on 2026-07-08.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBA7470706.
Recording identifiers
- ISRC
- GBBBA7470706
- Title
- Sonata V
- Artist
- John Cage
- CopyrightID (CopyrightChains transaction hash)
0x2554bd5c22554b638da8387515f6dd6fa90bdc688185d8dc88f0e1c6b7bc5396
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:22:41+00:00
- Bitcoin block
- 957120
- Canonical record hash
sha256:a58cf434a9451ebc8f00a3ba2da1349b7ee12262c04e6474de8e96689ea4899b- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBA7470706
- Bitcoin block existence check
- https://blockstream.info/api/block/957120