Liliane Berton (11 July 1924, Bully-les-Mines, Pas-de-Calais - Paris, 22 April 2009) was a French soprano, known principally on the opera stage, but also active in radio recordings and as a teacher.Ma
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31e3ea0400bf73b991354c8cd70d3d4d6f609d0efe53c2c5e483ddbe62ba3902. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/57420301-40f4-48f4-9c28-070af48196af.json and https://artists.proofprofile.net/proofs/artist/57420301-40f4-48f4-9c28-070af48196af.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Strauss II, J: La chauve-souris, Act 1: Chanson. "Si je bois un peu, beaucoup" (Alfred, Caroline)
Orchestre De La Société Des Concerts Du Conservatoire
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc41a3ef46c95e822c31ed908e11681cf7cd2f02c3ca4cc168b359b009bf94fa4. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ112300159.
Strauss II, J: La chauve-souris, Act 2: Csárdás. "Ô lointain séjour" (Caroline)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e9d7848f6fefe6e3f853c136d0f973d2bdfe3ad3265ab28011f7e3006f5a833. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ116506126.
Strauss II, J: La chauve-souris, Act 2: Duetto. "L'aventure est divine" (Caroline, Gaillardin)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf680cfef8d1eb73734125e12dde85e5be931bc26478ea6654503a0acdcb4076d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ116506127.
Massé: Les noces de Jeannette, extraits (Stereo Version)
Massé: Les noces de Jeannette, extraits (Mono Version)
Offenbach: La vie parisienne, Extracts (1873 Version, Mono Version)