Olivier Toussaint is a French composer, pop singer, orchestra arranger, company manager, and record producer. He also represented Monaco in the 1978 Eurovision Song Contest. Early life He was born i
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 0xbadf473b25c1fd9a3bc1f0f9a095ecc3e5cad33221587679845cebf1a214a5e0. 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/0c6f8187-369c-42ca-85f0-3d0d080d70ed.json and https://artists.proofprofile.net/proofs/artist/0c6f8187-369c-42ca-85f0-3d0d080d70ed.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 0xc59a31515e74d5470b1852285b6273ef5a5b08fe065dc376a4a6227393330684. 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/ITDF61733153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x005cc9988b9197fc0704ada7a2406afe3ab4e76ed0670bd1933aa955f2af3649. 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/ARG990900991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0d5c5cfb14c76022820a8b7c398adb89a0811d478725e3ed6aed8e9b6e8cc06. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ARG990900992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafef586f54fe88c3884d1406a892e962b1a939e1e8afcf5270b9ea55f89c5d6b. 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/ARG990900993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9ccbcfd295793b2fb037a92f98a23d30fdba929d9ce4081c288713f8a4a4db9. 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/ARG990900994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdab6f8fa3c2c734203cd09a2ed60ae5a5bc8b555f7e8a629d35dd393cb2ad962. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ARG990900995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60e286922a348daeaa2731476dfbf41a9d060c981fc920c1154ba2596d7c7e9f. 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/ARG990900996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1607513815f8ffd6482ee16f77b8a195f272224ae2030ffc7405cdc9c8a655c. 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/ARG990900997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98866118ea217ce42eeffd734ad7c2cbc53d03d492db0701add036a1c773f3a5. 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/ARG990900998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94f0665608e2e41cc9cf04ef3de45f2b04793f55d4fdf750dd2e7fc057a3da71. 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/ARG990900999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x470c4e7f4c5e7ba3b15ca5e058589e2a6a3c4552223e60ce100778cd37cfbd61. 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/ARG990901000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed2cebe6876654045de37fc9b33ac3738854f374adc9ab9227fb76cfa6165681. 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/ARG990901001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae4aa3f49f303f7087ff2fe6a3882c6a7ecd25e5fe9d9572097dbc9ced67379a. 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/ARG990901002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4196ae6d53be693a911df5391171ee6a3082147a5aba3e064f3b78f41dc01ee. 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/FR08F8500440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef348955293d5f1e509c6cea4bca89ea5283cdcb2411493f21afe44affde8c7f. 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/FR08F8801310.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f6f7577af8791eacf453a48b66b4f0a7191b5bf15102c88c71735123811b9ad. 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/BRLSR0300596.
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