ISRC FRZ178401500
Verified recording
FRZ178401500 is “Quatuor en ré majeur, K 155: Andante” by Wolfgang Amadeus Mozart,
registered on the CopyrightChains blockchain with CopyrightID
0xfc218ba4f1803109cb651ccde2430c4b6d6d5e79bfe77da3e4d89c9eb7ff07fa and independently timestamped
in Bitcoin block 957118 on 2026-07-08.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ178401500.
Recording identifiers
- ISRC
- FRZ178401500
- Title
- Quatuor en ré majeur, K 155: Andante
- Artist
- Wolfgang Amadeus Mozart
- CopyrightID (CopyrightChains transaction hash)
0xfc218ba4f1803109cb651ccde2430c4b6d6d5e79bfe77da3e4d89c9eb7ff07fa
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:3c24d5963c811a6c6a1355cced9dd5e891e547dca46109467bf767e557ef29eb- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ178401500
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: Quatuor en ré majeur, K 155: Andante · Machine-readable JSON-LD