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 0xb6877530d686053b5bac85874c89962bfb26c5d4c29ed7cc1aa9d5f0d602f9f8. 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/f254a825-17f4-46db-8bc6-f6e1c5f7143e.json and https://artists.proofprofile.net/proofs/artist/f254a825-17f4-46db-8bc6-f6e1c5f7143e.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 0xd24766597417844d17efd47f198204edc47d130cc4331b3c35da250856bf7f1a. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/FRU781100527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d6c4f1b1c83d0993015a02bd6d965aadbc1c1f08935d3e3548c5ffe9b0291c4. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/FRU781100071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfca4283028697e3888faef579cef14f4a8a870d09d0ab1c4f74a246f1bcb63d7. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/FRU781300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f28f8704eb3f67436837e4c12c97adee1439cc8bf49d31738d8a568eb13106a. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/FR0A21200105.
Therapy, vol. 2 (En attendant "Arrêt de jeu")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f1b354420665e8ecec4cf5eff20a65198056841380119e2291c6e51db75dd65. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/FRU781301000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfa4267e47a9fb964e90ce7b58210aaa8b4316f498026768bc9f396e8e744e8d. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/FRU781301010.
Lola (feat. Flex, Skalpovich) [Version latino]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ec81b41f20daf4701b82db677f0a11a4bd8547007b15b374fe486e3db64c9fc. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/FRU781400320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba584d138c4ec464ddc065acfaa4afa555d15319918fdd64e5c8b36833495c6e. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/FRU781400330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb89f3a92efcf345cbdf9862ce4b7795d86288d736464af457852cfe0ff11fb6. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-20T00:06:03Z), 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/FRU781502010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90de92c9789447a7be3885e4af59167db0857cd4cef9c6314d2b96012cd1b8ae. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:03:29Z), 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/FRU781400325.