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 0xa55cb107eeea39af8b257395810f38cd2479a511e2da7e177759db7467bbaab6. 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/f76863b6-21e2-4da4-b0b4-f75312ad6c65.json and https://artists.proofprofile.net/proofs/artist/f76863b6-21e2-4da4-b0b4-f75312ad6c65.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 0x8a64df7162d413c13923238bc6776543f65d6ec407cf8b971dbe36e0b010a55e. 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/BRRGE2300282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e1131dc23b1bfc8eae86a28304f7d92ec2290de0ba0bc006f2d8f9eae13b009. 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/BRRGE2300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecc624f3890ff340524e1abb9eede1b18caaabec7c8034326052b1cae798198c. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/BRRGE2300231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6abf0e802b1d24beb225dc460ebcfefdf33c708e602f66ad9159f0f9b1dd9d7c. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/BRRGE2300227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e6599bdbd06ad36a1056ef7410e73933f4f101e74274ec9407dcb1ff88c84f9. 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/BRRGE2300280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0580bb0a5bd56950eb5f645d6cab5f89ae965d47e9d9d5c57aeb89c97caa925. 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/BRRGE2300233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf81f2096b5b51c5573df5e06e5c0c8aae4f936f68902fa5329d4de87ad2af202. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/BRRGE2300235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4377b8f73f198e0475d0137ead1d47d39e15463c0b84cd5ce0243ffcbdeff41e. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/BRRGE2300225.
Luau Amazon Music Luiza Martins (Amazon Music Original)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1149dfb5f6e2e066c07efea3c10f8468138e3d740d9ef5619d4613082ec8677. Chain 2 (Bitcoin): anchored in block 957801 (2026-07-13T04:17:08Z), 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/BRRGE2400044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x394344bc9457ac323e7eefa2ac0ffb64718b318c82c908e67eb07b6fda138943. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/BRRGE2400046.
Você De Volta / Coisas Esotéricas / Basta Você Me Olhar (Ao Vivo)
Não Resisto A Nós Dois / Amor Amor (Ao Vivo)
Não Resisto A Nós Dois / Amor Amor - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29878f94460f6a9471e27b6fc7f64b78ac4b46515b269947bcae44b3f374d3a1. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/BK1Y82500011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd18f97e36e06837d2d74f5a83aab90c70d97b0825e71808e1404bf1dba7899fa. 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/BCK6O2400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5511cec9f30c7cedf0d0681579b2b2574b28922df80f3ca0a143f429079e9252. 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/BCK602400017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ecbe51e54f163f706c768d56843b92a25040ca7995c1aecfe75abc4fe2f4497. Chain 2 (Bitcoin): anchored in block 957034 (2026-07-07T11:52:37Z), 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/BX9ZT2400182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bfa8bf1873623b675e76ef60c920abba8f43f3748f58ebce2785e8cd112ccce. 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/BXNKM2400001.
Não Sei Se Canto ou Se Choro, Vol. 2 (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bfa8bf1873623b675e76ef60c920abba8f43f3748f58ebce2785e8cd112ccce. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/BXNKM2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12d6be843e21d7f199e96bc82c5ab6f6ac36203e1c6a9206b576443a1c71e3ee. 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/BRRGE2300260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12d6be843e21d7f199e96bc82c5ab6f6ac36203e1c6a9206b576443a1c71e3ee. 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/BRRGE2300260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd18f97e36e06837d2d74f5a83aab90c70d97b0825e71808e1404bf1dba7899fa. 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/BCK6O2400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0addedfb7068dfb3225a97f45267850be7eef84ad5aa3ea11362f2fb908d1dc. 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/BKC0B2300015.