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 0x83fef7dbbe7a665cdb3a667a1b873aef92211b2d76f61a1d38b9901645ed29e5. 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/3eeaf648-331e-4a7d-8377-307a08bbd73f.json and https://artists.proofprofile.net/proofs/artist/3eeaf648-331e-4a7d-8377-307a08bbd73f.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 0x0d11a067e069492ec1f1875f1b38fb3a932bedbdc00e79a874f12d2ce33d75a1. 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/BRCMP2000191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d5181d3776cecd3597785fae068d82c0ce3472a5be370f4e9a3429105ed3f7e. 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/BXCMP2000243.
O Trio Sertanejo Mais Dançante do Brasil
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81566613b146e38e6a3c2c08b7a0c466f87894cc6a581bc73a5d2ceb2cfe4552. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/BXCMP2000270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a7efeae1747c3417ef99f091d1c0f9d17696e9b7c4c7e98c541817fe14972b8. Chain 2 (Bitcoin): anchored in block 958474 (2026-07-18T00:59:09Z), 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/BXCMP2000274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc68aac5b73d4574083231204c1a053ea161b2fdee61e22f481d539d6855cc294. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/BXCMP2000276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e3d175494b5df8c0794a0ee27c6016f7ff03e7bc2882d0d22228d4206a60e56. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/BXCMP2000290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89eb661f1608c94804ad1c9a3a5d6b5a310faa87a2235acbbff8c865592263cd. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/BXCMP2000291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe873fb8292de3fe856c8b504c5ee663efbc710b79479eadd2472e7bded9e5bcd. 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/BXCMP1700074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc89d4c48b78fb561e783543b000c8588ae7d324307e4e5f79f90fd3283db7b73. 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/BXCMP1700075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b25bac07f3a93353d2fca11f254a7a961dcec9540935e77f598bae20acccb56. 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/BXCMP1700077.
Do Outro Lado Da Cidade / Tribunal Do Amor - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c8405829c7013ef50ee5e1542421e1418de4185b6549e7e6ae8298b106ff8b4. 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/BXCMP1700078.
Amor Distante / Cama Fria / Quebradas Da Noite / Apaixonei De Novo - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75d229e339a774a134900e173dc4ed05acf70d1b8c86d0be3c2e31de0a0b9a4b. 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/BXCMP1700046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2225be8da62c0ae2b6a0ffeb12d820033a220c95a0b94a84c43e78b129d6499a. 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/BXCMP1700084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb32c14381d047581e716d23d961d219784f10a71e6052ae185c94b8de7a63d06. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T04:29:18Z), 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/BXCMP1700108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5338c155c2194146e8d7edfbf308ed77b0e11909e1adad537bd760c84b5d81c4. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-19T23:56:11Z), 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/BXCMP1700111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01f7be25a6fb4e8d97fe7436cf31f922a8cce2c27082e95fdaaa9d3cd6c0b449. 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/BRCMP1900022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x318c53625f8bf5044411faac699c04e8b5443b1e03d6c75b74399e769234b904. 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/BRCMP1900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedf29fea82e193df4e17ceacc57bb95680c83267addb56e6087055e42fa85fcc. 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/BRCMP1900008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f961baf4babc8c69ed2420d1d01dfa8aa8ac503bff38a76a41cbe637ac7dc53. 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/BRCMP1900009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f37c2eed1def37b3c41fd276d53320db1af38bbfdb7252f34cec2f084c8fd20. 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/BRCMP1900010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a7b9d9bf252a78493e56ab0faef2f61357fa0af07d75a866bc1cadf0a77b703. 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/BRCMP1900013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7657198a6f44a4585da1b944d48ebb8c05a6fe3397549bbb9bbfbcd239d43e48. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BRCMP1900018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45fd63f08485ebcefdf82d21674959f89c4bc27b32eea37ab6b17b7e4571bfdf. 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/BRCMP1900019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3b5ebba751fce275052e48e5b73a5bd9b9e3972b70bc32f5a756ba4b2c4d4a3. 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/BRCMP1900020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa43eb7fe31665acbc45785a785a843ab2e422275942d27ce8e6243857e23f32d. 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/BRCMP1900021.