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 0x267c722776e6d210f803f3e1195dd8b156a5d950d9520668d5b4a0373b1f8554. 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/91259938-22bb-4865-8ed7-3c6081237e79.json and https://artists.proofprofile.net/proofs/artist/91259938-22bb-4865-8ed7-3c6081237e79.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 0xc8a22225b07ad3f4b82545cb7c220fee787b9b93780505731b05d1a571908c9b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BXX1W2100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f55a69f348ad1b08dd00aef1e3bc9b3f05919dbdceb42dba2cda63fa941df9a. 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/BXG6R2301027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x812a84623d3e78696d9c561f537e062c4e0cb760355713cc846298ee0ddabe8c. 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/BRSME2401096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafb47592b338cb22a706afb37c9f52db86e47d30d6ed26f43de438ce89588a48. 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/QZHN91926107.
Flow de Quem Já Voltou, Mas Não Por Você
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aade842b9883beccdf2a56359dd9348130751153113dde4e32ffaf52fff2b20. 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/QZHN91926115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c5fa1c747eb6e4e06d8556169f86d5097c75418a6d3a8fc6ba199081fda9115. 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/BC2GV2100038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8941f0f44e32d0c0d8502a1ffd547324ee7261e187aac20ab996b55c5a1d8d6. 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/BC2GV2100022.
Tropa do Beroba (Sessão de Cria 2: Beroba Freestyle) - Remix
Tropa do Beroba (Sessão de Cria 2: Beroba Freestyle) [Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0ba4552e96ebfe2854a4892b4b2136cd13a75f7186ef57f7c7fdc0c4f12f70d. 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/QZZ8B2344436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd14143c5bc56dfcdf70bee84d895148fd596b99ea5f9f421dbd8ddfeeab347db. 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/BCM9A2300081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4a0fa2bbc7039388cd4adc082f05f5556bfb3d46d10eaf41114861a5f35b42e. 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/BXW922200024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae4cbf3e89a04fc619e42e7aac4c2b1cb828cc4fbd1ab2d27475defb0d400b63. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BRRGE2400519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae4cbf3e89a04fc619e42e7aac4c2b1cb828cc4fbd1ab2d27475defb0d400b63. 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/BRRGE2400519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9f59be4d652f92295e5828c131cd0d32eda2ec087cc5bcbc9ae7f934d393333. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZWDE2489713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xada6bce58575535097ac9f495b7144bc98c97f45428789c7454dc50373c4172f. 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/BXW6U2100012.