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 0xf5364eb7438ba3422eda5593691f8a62e79a6d8878ae1b6da04f6889bd4b94be. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4c046a07-8b4b-4c9e-a373-76e2bde2e798.json and https://artists.proofprofile.net/proofs/artist/4c046a07-8b4b-4c9e-a373-76e2bde2e798.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 0xceca1be4f28f1fa6aaa0198b94cbf975d9ddd0f76d6710b0cce753c61d082913. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/BXI8I1800090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a672685efa845b2ab38152bd528ede2052ab49c863a56e66a6ccbfb1d2eb743. 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/BXI8I1800092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x464cb6c8367d71d469c3d05f6b23786974c209ca475198abeb76e73d73681224. 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/BXI8I1800093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa20097586cdb2191806033558701eafcd234cc9bc6c82b53d8462274baa0e82f. 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/BXI8I1800128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b8b2de2b1a6c0c8992885cd73198ca93570c23d889065775ccde655b42c5cd1. 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/BXI8I1800129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe67e3e984d70990b3345dc210f3058300e68cec9668edf8fbc4cc5c52c054cdd. 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/BXI8I1800138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x801adc65c8d9869dd84117cb12d5c8ce32e3fbe12f468b3eebb680f7c338bab8. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/BXI8I1800130.
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 0x173052f4c0ceece5c9f2aebb9a1453f748b0f8ed344680dd5b95b8e9afaa404a. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/BXI8I1800095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d143959112150f76c6e69833a08e39747ec034031184deca6475c7d3ab4de6d. 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/BRBV22400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x869ef67c15c5840fb03d08bc97462137464f503579995cce8fc263b005b91ad8. 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/QZNJZ2391569.
Rima, Vida Louca / Tempo de Moleque - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7b929a87ed2afff4fd88812aad3af1117139af5f2fbc59c192d36c7d625b3d3. 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/QZNJZ2391571.
Desce Palmeando / Parece um Paraíso - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb169fe494083a7d509ca0fe63f494279b8cf1d5f57d7cc58c7d1dd98bcff3c9. 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/QZNJZ2391572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12fdf1e3d69ce5c7b6ae1f1c144d5ce34337d824cab5e276b4d3250b1904975e. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/QZNJZ2391570.
Namorar Não Pode/ Leite Condensado (Ao Vivo)
Mc G3 Vs Mc Max - Duelo de Rima (Ao Vivo Roda de Funk)
Mc G3 Vs Mc Max - Duelo de Rima - Ao Vivo Roda de Funk
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4f2577851485e5f0ffa6e4c5fd208a2df7428b0560bb55f4d32487d2ba8b74b. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QZNJV2224879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe997289293227aa5a81e934a9b26eaedeb4805652883f1672ef66b86f25c5185. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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/QM3DF2160769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0e4a96c59759e4d73c0f03648d9e7607b3e848b7efe7b728c65c8298899ae73. 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/BRSME2005395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35d541b2c9374045f4b5beb55a952261ad86d332cc2d1e8db2fbb7e2d76bd4ef. 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/QZW9K2483881.
Mc Max - Ao Vivo na Resenha Firma É Forte
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb90f4482ebeb21e1b1202497bd6cebedc667315a98627e22396204dbcf08fec9. 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/QZTVM2490975.