ISRC FR9W15800117
Verified recording
FR9W15800117 is “La traviata, Act III Scene 4: No. 8c. "Addio, del passato" (Violetta) [Recorded in Lisbon, 1958]” by Maria Callas,
registered on the CopyrightChains blockchain with CopyrightID
0x214f5ff8ab2a837d3f3b921390799e9c5255c0c0dfee4391bde5bc29afe84bbc and independently timestamped
in Bitcoin block 953520 on 2026-06-13.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR9W15800117.
Recording identifiers
- ISRC
- FR9W15800117
- Title
- La traviata, Act III Scene 4: No. 8c. "Addio, del passato" (Violetta) [Recorded in Lisbon, 1958]
- Artist
- Maria Callas
- CopyrightID (CopyrightChains transaction hash)
0x214f5ff8ab2a837d3f3b921390799e9c5255c0c0dfee4391bde5bc29afe84bbc
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-06-13T13:32:09+00:00
- Bitcoin block
- 953520
- Canonical record hash
sha256:0cdc7212b39eecfdfd4d5880cee1871f5287172dae4584d2f5b93068badb2738- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR9W15800117
- Bitcoin block existence check
- https://blockstream.info/api/block/953520
Full record
Track page: La traviata, Act III Scene 4: No. 8c. "Addio, del passato" (Violetta) [Recorded in Lisbon, 1958] · Machine-readable JSON-LD