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 0x27cf60f7de5556e4c3d32ec0189231359736726da0d19689833da0226e210052. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/df498640-f137-46ab-b794-a7e53638cdda.json and https://artists.proofprofile.net/proofs/artist/df498640-f137-46ab-b794-a7e53638cdda.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 0xd97e385c7b23a8f84f91279726c4bb46e1bfd99733166bed26559e0c818a44c2. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T12:33:53Z), 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/QZNJW2568321.
Misericórdia (Ao Vivo em Iasd Boqueirão, Curitiba, 2020)
Súplica ( Ao Vivo em Iasd Boqueirão, Curitiba, 2020) [Cover, Ao Vivo]
Como É Grande o Meu Amor por Você (Cover)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa92e0711a5bfad68b8bd550c600c623bb48bb6f51e5580a63ed213270886c30d. Chain 2 (Bitcoin): anchored in block 958873 (2026-07-20T11:48:10Z), 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/QZNJW2571246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37617dfde32c9756effd22d4f52b1bdd87c8219047f2861a54c6b0344040e479. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/QZNJX2507120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x591ee1ef8ac1ad5e89e88310dea2239a3f05083844dc7c3a8da3457fc83cb6b6. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T16:43:41Z), 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/QZNJW2582180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53c8134a49e7c139085a9c9008e2933221ec1dc4637a8cfed5f4f3870a876f54. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZNJX2510445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x939e6fdbc51061e3f920637be0e78e1f24f24da1c335a0f4ff6dbfe348eca7b6. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/QZNJX2509985.
Vou Cantando para o Céu (Tum Pa Tum Tum) [Cover]
Vou Cantando para o Céu (Tum Pa Tum Tum) - Cover
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2a5a60dae998abbc14f9d6aee3b5e72ec8544f50b92346fd3427eccf621de36. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T15:22:45Z), 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/QZNJW2598607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44adc9af55d467d0b64f31be8d7688f9b8990bec6c7ba96a6667473c618a764c. 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/QZNJW2598616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2606754175bfb4f7b8a08add3b574ff4183044e8a01a2e4bfb7bb9642d63af4e. 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/QZNJX2530140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ee77d40699cb81fcb190f457098838aaf38e70450cc43a3d2e1825ce0878c83. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZNJX2502600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe29dd1ab59e3a7504360a9a6e16d54158c36b8386e83828da480ded3caeed031. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/QZNJX2513604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c1c134ecfab1d5fdfe74e1b71c2d49e7b414c0a70bc46fe4ccd7bdafea6a903. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T05:07:11Z), 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/QZNJX2506553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6bdd67be42aebb32981ddb97f7e1e2b66a97415d00d3c0b93872b5c0167e260. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T16:43:41Z), 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/QZNJX2528373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x781e0acf9c2c198424b6d10a7707af73913800cf8c4eb9a159da8d62add988a5. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZNJX2510652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4b1ecbf74b492c462bcaeaf8af418908b6d54cd07a5dbe01278879d83c318cc. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZNJY2502689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16b886a5993d045b2fe94b81e9e795983a817d0fbe6be3ec5ea7efdb6f49b4a5. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/QZNJX2544404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9a888197f210f1c36998a4a7df18eb5f1619aca383d2a5b3cf80da109a9cd24. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZNJX2515314.