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 0xe6bfae92c5e4168da6deb8bec80ab3eb94fdd13a65213e19d428b961e36358a2. 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/c15db336-e46a-4111-b2bc-5b9d9b89702a.json and https://artists.proofprofile.net/proofs/artist/c15db336-e46a-4111-b2bc-5b9d9b89702a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
A Cara do Inverno: Música para Aliviar o Estresse, Piano Suave Ideal para Ler no Inverno
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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 0x54bdc87f159129fcc5333aa089c6654d843edf56ff0de9c5e2f9a8c0394e3659. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ITLU51879852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5c57f471df210cd1043089534928976aeeb2c1ab2fe668ae63001496868a126. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-17T00:01:01Z), 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/ITLU51879853.
Estude Juntos: Música Instrumental para Estudar em Grupo para Concursos Públicos, Focar e Memorizar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb30793c9eda9bc72ee1951c00e5b031d638798b761dc7299727dd5f804b45a51. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/ITO101913720.
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Ensino e Concentração: Música Clássica Instrumental para Memorizar Informações
Estude com Eficiência: Música para Concentração Profunda de Todas as Partes do Cérebro
Música Ambiente para Leitura: Música Relaxante para Ajudar a Mente a não Perder o Foco do Estudo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b4ed192a7bcc43c08ed6b7ca51ce190296ba2961682cf16360dae5b7c0d0372. 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/ITLU52070201.
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Meditação Budista: Inspiração Profunda e Relaxamento Total