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 0xdf04f81cb42dc5170a52069b15323f3bc1463ee5f1f25da22e66772cbc6c67c3. 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/151bea27-a233-4765-9637-ac7143f7b242.json and https://artists.proofprofile.net/proofs/artist/151bea27-a233-4765-9637-ac7143f7b242.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 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 0xede4abe5a94f11f12553838790d3fb70bd23d5a9ce906f1aea0ececaadc309ec. 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/TCADL1879524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3a84444fbe443f03d25fac6ce624617c9a8d8ae2f46fa05a06af3dec7eb9a0b. 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/TCADL1879529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eddf73dbc332a2455395af1e8d8ac3b7c6887ac00a93ce8e01471100f380e95. 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/TCADL1879532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0bd340efc3b0f39931fd4f2020746165fc8d72b904270c6bdfffbb84f751782. 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/TCADL1879533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc91ed78e07b5bd64d70369db5b8e81a40155bf5879ac145c7f521aa81a161eef. 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/TCADL1879536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad18f5ca6ce58fe4a0fc491e556b4f5045cb7ec87687c20bfabb7d7a14c93b0d. 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/TCADL1879537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40a3603bc795f87a9051530ff7f982e5b2cd3f07f5cd8b00aff54b96da76d013. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:05:16Z), 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/TCADL1879540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54f0d02a49107ee75f00fdd1ce2d094e0e0fdfc448407450f0e4c2494743a60b. 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/TCADL1879542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8c28d3ae8c1003b527df1bc9d130da44fe16034e570bf3f37b913f4b9c50cfd. 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/TCADL1879544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9b60a95509f69ccbc8cc73a04a451dd4d5916c1b6eee7c9ad63aabc7a462681. 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/TCADL1879557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x534fc3ade12737797112716d3935c6a23dd0d2f5df2c51f0e0e49d8cb2403a44. 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/TCADL1879561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20209467b54acb97df0704adda52c8ab28bf35420e2eeedb781960296d7e8b70. 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/TCADG1710480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a4e0c1168f5ea72b88cf5ee4cb5f4e77e386a7be5d75022bc30c7813d3dde9c. 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/TCADG1710482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01e05573d4e28331d77a19c92994fffaa74488b4fa3965f5cde32c476d612732. 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/TCADG1710495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x789cc16cad85026adcb1da4e9b53afeff07411a9a841a2d8999d58aed372da19. 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/TCADG1710506.
Soy Como Quiero Ser (feat. Javier Rios III)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x765c9041b3945b707ad16ae0b89af9688c32dc96d0b0a1181014a48417ca7611. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/TCADG1710516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2ea852fd4e976f3043695b9ef19335d37b9bc279cf888c9186b7d0894cf6663. 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/TCADG1710518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff0c4cb8e22687268a34f1e60880c795fe0eec72105cd42c5896701871723c80. 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/TCADG1710522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x181e7acccffff06bc0b5b13ffe4022df9f7c9428fcaadf3142f692631e27bd7b. 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/TCADG1710524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9926ca4018c7842ffc6a83e718ff30ef5063edc00e0d36a6f8c32474250f1dd. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T19:28:04Z), 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/TCADG1710527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d9fcb56039eb07d097648159ad4467df55e94ecb17bb600361fdd14a4ba88cc. 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/BK4DA2407458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd18f8fd97402d6227698746ddf6df69b669bbd6eb18cd16994bfe263b24aeb9. 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/BK4DA2322509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcccf8eafb28cc0782d120c0e0ff9c46cfde10c02ec7d740380325f69acd96cf8. 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/TCAGR2210693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61ae1bae7959b5bf8a7b436eb8cdb8e32640ff8c44158888762010b99cfa1875. 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/TCAGE2230396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x544c4d43882a2c722402ab226a4883874c428ef4a2f462fa920fd81bbb1f0457. 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/TCAFX2199052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd5c8f17698938f14c8e655fe9b1e075aff838b44bdb4d8971ab44d1caa32374. 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/TCAFL2158368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd55aca71c659aa37a4d82d3eae97898f1de01c8a2dcf720c53b56603bf4fccb. 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/TCAES2055800.