Madeleine Peyroux (born April 19, 1974) is an American jazz singer and songwriter who began her career as a teenager on the streets of Paris. She sang vintage jazz and blues songs before finding main
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 0x791f4af2ac3509b5685ff442c4057d0e51a2a5e0bfe6a28fd7e9882893b28da6. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/39f9664b-01bd-4555-9da4-064576e96f7f.json and https://artists.proofprofile.net/proofs/artist/39f9664b-01bd-4555-9da4-064576e96f7f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x3ce402a26afce44ba8bc25f3034ab450f6fe73d774fbbe6a6f79dc8e388bf911. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USRO20419208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33531e40716f5c71faf45cd592f2c941aace6fb1f2ac25badbba714fcd952d14. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USAT29600157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33531e40716f5c71faf45cd592f2c941aace6fb1f2ac25badbba714fcd952d14. 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/USAT29600157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb603dc4971ecfef0dcf1753fd6f81f8fdaa32c8f577c175df5649e9657a26ba. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USA370564903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8f11fc3a5d0a779965c94defe9e5dc17b240e73d044c9a1a7587bfcb4d9e53f. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USA370564904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4cd3c3930adbca9ece994b96e04c963db9882c0c92900d165734faed3e39768. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USA370564905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38012f8ba51f440ec1d00b604bbad2fac525b9cfb2ab4b781f63e01eb3402106. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USA370564906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a0466f52e53703e3c817c533bc7d22170d8548c6e772cb4b6f3c9bf964f3db4. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USA370564907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x304ab22e0123a30adc9a12760271f14354a490983b9d09042f07fe403e05b2b4. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USA370564908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x789632d60c35f1b22feca0f3a45afccab39ed790cd78c9e8e33ced852366a5b2. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USA370564909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cc9ff9f5cbf10085382e1aa01e166b35ca814c3c19c3a996488198c8fea16a7. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USA370564910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76a7375492a20586d064946528312660b6cf51d2f2ca4f3af9db5144de8a5a9f. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USA370564911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89cd069b009e572407ecf0d280851d0f343ba8d4fd25e133869b1a18ceaf4b4c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USA370564912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3cba8a63da4b954fba5fab4f3db18d9ced43dcebfe2f76b48fc85793d5c970d. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USA370564913.