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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0572debd640a9ad288ca79aec33c6ad96ce9de2b4bb628fd9f86963baca8f4d7. 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/435662f9-cb99-412c-86d0-a61bfd4616f1.json and https://artists.proofprofile.net/proofs/artist/435662f9-cb99-412c-86d0-a61bfd4616f1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Mix Aniversario: Ni Tuya Ni Mía / Quien No Le Ha Llorado a una Mujer / Por Alguien / Cuando Vivas Conmigo / Rendida a Mis Pies
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6170b81bb2d58f3fded93dcf9a80c02c3d2f463d6292b7bca942bfbaa1c0a853. 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/QM7282066339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85b35ec1abc1bd44853befc12bcdb52261d564fb41ed19cf64c4ff87159af475. 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/QM4TX2103475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aaf7b514457b33acc63b924eaed7dbb74d82734417d2c3fb8c147914e4a0cf7. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QM6MZ1962310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x211502e1bd4be3eb537b1508625442ff505da46412446e1e72b0330debf83c99. 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/QM6MZ1962313.
MIX los Tremendos Laureles Ft Revolucion Tropical: Botoncito de Rosal/no Pienses Que Lloro por Ti
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0082b359c761952bbbebc53df0ff8c5e5e9a0014d15eac58ad4c8c9a1e47905. 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/QM6MZ1962320.
Mix los Tremendos Laureles Ft Consagrados de la Cumbia: Amarla y Después Perderla/Mujer Casada
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x995ab3653b95c5ec519929a518ddc656984154f524f84d720a7fde0c78818602. 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/QM6MZ1962321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e384710d932c73723dd8856e72e7f61bf8575301a268379d7dedd97b9bc9242. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/QM4TX1790601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1913dd8e24e190ae5b90e7af44e56002bd1bdb43f1e21ec0d3fb2042e25478af. 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/QM4TX1790602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x745982e408eda01f41174cc8f730b52898d3edd85766f40984f1302c4c410261. 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/QM4TX1790603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd18053fa1cdceb16c34e37a5f3df861b34ccf0fe6cd083dc37fe2aae49d271d. 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/QM4TX1790604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x374096573c9e45cdf95beb7c364ee0c757098b7c643a0ca3c8f721d150360ac0. 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/QM4TX1790605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec9b671ec73336950cd930b26048004c74588744d01b1b9421f639634ebdf7e5. 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/QM4TX1790607.
Mix: Sabes / El Perfume / Cuestión Olvidada
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e0a371aebe8276ad9d429051e890628d693c6e09ce0b4e5de04507ea765d5df. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:25:05Z), 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/QM4TX1790610.
Mix: Soy un Bandolero / Chaparrita de Mi Vida
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7ba8e6043c866f163b2989f4ea74c7ec5d45419d3fed119cbbec1bbc57bb06f. 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/QM4TX1790612.
Mix: Quien No Le Ha Llorado a una Mujer - por Alguien
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ce0eb5473b6417c158173d5ba49f0dada1f8fa9fd8954ea64298650b2ca517e. 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/QM4TW2004566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb01c25a5148c3e5a7990a49b3cca5ec33ba98c5afce0dde8a9725f645dfef810. 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/QM4TW2004571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd88072c425ac016ee427ef26f45f6e1d518938554fb072386e81b8cff89c4334. 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/QM4TW2004572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1613bac75e2c6708868791be1b78c1e95c3545c6f4a422b03dc43cab2ff3f8a1. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QM4TW2004573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d277622bad487639aba609175cf056e9e7ef3951280e83daa4958fb64c8cc72. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T15:30:19Z), 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/QMFMF2104878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5cfe587fda1e923d236c148a3b1e5232f942686bd118c1b2d283cfaefce1e18. 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/QM4TW2119010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf48f5b101d1435133e2431123eb7f577e6ce74866f8893749318aec6bdbc1932. 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/QM6P42049918.
Mix Pa Bailarlo de Lao a Lao Me Gusta Verlos Bailar (La Quebradita) / Espejeando
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cbaf3893af8ea1ae3763c9ec603e4ca4f246c2c7914c7e87b0047b8c57a8864. 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/QM6P42019211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0adf36ca5971b452ada50d07d112e4ab12a0a7294cb5efde7c2e5e9209375ba. 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/QM6MZ2196816.