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 0x5f4da4a9f130398eebc03990f33481e74eee56a48f511db777a4acc21900a422. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/77fd676e-2054-4c0c-a1e1-5bcf197caa32.json and https://artists.proofprofile.net/proofs/artist/77fd676e-2054-4c0c-a1e1-5bcf197caa32.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 0xdae76831b12479a1fafd464664713b3e2dafcffdb5a31a7ce83834ab26fab921. 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/ES88G2200176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x095a9306ce27b5e3439501fa418b891b8e2b39c6bd68313ef612dca1302ef98f. 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/ES88G1800118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0872e9d32f355b127ace14b0b23bb511e49d87db0f53fcac01cc7541ab9af51f. 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/ES88G2200165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07237038f4b095df7e601c0ef3a93991fb06c49f70ec8605291af8f0d59d7c5a. 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/ES88G1800144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65c8ec2068c8b8c0673ec482320c1be5d8551c666a3bf66f1a8ef90065ab4932. 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/ES88G2200182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x190994d82f366d30c96d5c844ff5521a5588d6068fef1442b3f1787e0001f4c4. 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/ES88G2200181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07237038f4b095df7e601c0ef3a93991fb06c49f70ec8605291af8f0d59d7c5a. 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/ES88G1800144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11b5fde2013aeb0ee9ec1520c142cd7ce3d9fbcf2c964d015be1094f3dc91228. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/BK4DA2412627.
Que Haríamos Los Viernes (Versión Bachata)
Que Haríamos Los Viernes - Versión Bachata
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cdabcfdf4dbc134fbac7e7fb6959bc4444cbcfe4ac1d13cee80d9f481894569. 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/BK4DA2326453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9371ccaba0718b8f2df252f32542c3eaf8e8d01c1f7a44c522f1e87618a4fc79. 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/BK4DA2324588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3add9ff127c16847c671d306f5508e6b4954ec57f1e3c9d9169394f224b66058. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BK4DA2317053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74090ff2e7f6b452cb6ae4cea7455e8b0afe2945886896a2b0f364271c4d1bf9. 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/ES71G2248228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8d35e25af7b256c6985433805e8414338e5a1f377c23986ba16cae1e980a598. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/MXH612200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfdab7c1aada862d69bd851f11a8919537ddc539bc1123edd54d0fe495df10b1. 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/MXH612200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1050bf3d31fe50603d83f8f0c82502f8e4a4b32da5caf0c06d95e3fdf3708a4. 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/MXF152100054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9f1fbdd5eb2bd875082972a2c6b3d3a25bfbb7f29ab9f2bff0c0f552cc83edd. 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/MXF152400531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a2015503575655e27851f073cba62a41311a639d058fce812f1e419d38f72e9. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USWL11900038.