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 0xcbea4c15322b5c8d8271c2413eb278a9f632e5a6cd4fdfaeeda38a9af1a8d117. 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/12313e78-da70-48d2-b035-479deae2d92d.json and https://artists.proofprofile.net/proofs/artist/12313e78-da70-48d2-b035-479deae2d92d.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 0xd1228c22d377c7e0be19e0da47c7c19f8976e411d9ec56b5ee918f0bf37e4812. 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/BXBPF1800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x357ee3d17374094d27df7de8a9b7e54cc9e67efef34f5932e8e2d4ddaea24112. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/BXBPF1800003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d24eced98666839665f689bed0099c0d4f2b45b3990438941b9804ad657c57e. 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/BXBPF1800005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a673d03cebcafb6da2bd80f2f66df93f631e1e95165b9ad6865fd5b964e2645. 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/BXBPF1800014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4fd87466fb991940794e8e3c65e6c8f50af6eb94d0afdc75f229ff198eca514. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BXBPF1800007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88a34418e9600a6687efd30f782878d14599a0591ab49c773785991d2445a149. 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/BXBPF1800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6309fb6166b7faab1861c05fbf2917f27add7011c54628b516b3adccb5ef1e2a. 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/BXBPF1800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0914011f61dfab4d52075f834edf259ac176147e71235752754336d0ea68ad12. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/BXBPF1800013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57725f54baf9d34cd1eb8c9653a0927d3ccbe9e966566e36df2857f04004d237. 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/BXBPF1800012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66148f4d8e4610a9a26824e623178a08c99b866777cff457da584bd5e16e8631. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/BXBPF1800010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x909c55719aebdb4ca487e74d73e1aaddaca4ed68740dc4a35aa809fc2298ea44. 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/BXBPF1800011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd470b4dd35ea6079d6e35f18334c9e20c640cff180c1c0360229b8faeef0a20. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BXBPF1900006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88a34418e9600a6687efd30f782878d14599a0591ab49c773785991d2445a149. 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/BXBPF1800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0914011f61dfab4d52075f834edf259ac176147e71235752754336d0ea68ad12. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/BXBPF1800013.
Casa Amarela [feat. Fred & Gustavo] - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9858cbe0178b1d8c32f49fe68058b04ae9cb8bd8f5479340b2a89ca0556da8cd. 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/BRD3P1200048.