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 0x20abacbaa2a465ed865291d67026f1e2d58a8bb93206781d8555f62bac2eb114. 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/78cc1105-66f6-403d-8ccf-56e1912dd91c.json and https://artists.proofprofile.net/proofs/artist/78cc1105-66f6-403d-8ccf-56e1912dd91c.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 0xc27b9cefda7fe766fcd76b8613b02df49d2efe0abcb78209481a89db6659c9d2. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/BRXCR1300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7270cf8b4ee06e923e1ff49aef44dd4107f8aacc3c54f6460dbcfb6e3b65a81. 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/BRXCR1300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x286b857e339eb6961234d0b7b84bdffd17ecffb70e378acb41b85e194a0ded7f. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/BRXCR1300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fdecebfe0d7f2a515483e6647d72c21eb42c6dd00cc6b968470ab419f7260b2. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/BRXCR1300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cc6033549adf7340f1b5f52ab94ad1dbca259fd5c99ef153e1b6f90ad8e8f9b. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/BRXCR1300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1ce03b70d79067412ae1ff8aded1312f04b5eae652fafffbc0130c477d75ebb. 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/BRWQ61300012.
Depois da Tempestade (feat. Alexandre Carlo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd14ad2ed6109a6b7b6600af1058968111c9bcfe01a9ba9a79839b6fd1f756ba6. 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/BR7I21500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x777a7db31d24c102bea5b968546b182d7627c5d9180bd577886c8a26508fea00. 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/BRG981400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6d968e1f38b1e99db15cea3bb1be70516b47b9b528453f4c23def70bce1c507. 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/BRKGM1300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8109e0b67c1c479f647a7085afcf692497ca5cb5bbafe8918283ff5ad6c49833. 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/BRRGE2400690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x241a867ff37b5bae110c54adfd92e83f95312d1b6de69fcce4963a0c27bd38af. 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/BRRGE2400692.
Isqueiro azul (Participação especial de Alexandre Carlo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25323815cad1f164f5cfd85889bd0c72301e86004fc0806e16366a88c7ecb547. 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/BRWMB1600003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0404359867affe7761373f87f1cf2cc9efd9bd6de04e87b94b87c836a1a8dd70. 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/BRSME0900402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaefdf79b18783796bca39efe57bda81b6888fed3e4b3f9d01e14972d67580d45. 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/BRRGE1905424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x241a867ff37b5bae110c54adfd92e83f95312d1b6de69fcce4963a0c27bd38af. 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/BRRGE2400692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ac8608194d316352589ff5a2a4f3b3302706ba70396de3d88edd15e6a66aeee. 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/BRRGE1600247.
Could You Be Loved / Citação Musical Do Rap: Se Ligue - Live
Multishow Ao Vivo - Ivete Sangalo 20 Anos (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba27cebef3a67e7c6178065ce9220f1d8c0880b898950c1362c45eb92a26bccb. 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/BRUM71400215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x761cfc262b0e30a4a56d4e494562b07d9d7550c76b3a09865e3e0c144c93a506. 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/QZTVM2476939.