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 0x0ed9cfea312dba3439cdde8dba298619f8849616c92a8564177ad19364f9f2a7. 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/2c7c47f6-175b-47cd-af76-862f38c5e568.json and https://artists.proofprofile.net/proofs/artist/2c7c47f6-175b-47cd-af76-862f38c5e568.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 0x8a09fb3788ba4a7b2f6c378f7c21df9129db693d4b45189ef737b313b3c31a36. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/BKPRX2300016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac81ff02d09064fba7b227a63d278f3b266deca76a45a87e8c8feb3465bea617. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/BKPRX2300023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44bab759e1ad11be3592adebb6902915b27e39e12bff3fe45d4e7e41e37f41b2. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/BKPRX2300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a09fb3788ba4a7b2f6c378f7c21df9129db693d4b45189ef737b313b3c31a36. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/BKPRX2300016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x674a2c62f223f802f51e8e51469c9246b25be957f5c9cd57a88cc996d135a882. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/BKPRX2300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9feb24ee542a1e218c9a74c72b025f1e483ceb56ce765357e213f24c4ca59faa. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/BKPRX2300017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44bab759e1ad11be3592adebb6902915b27e39e12bff3fe45d4e7e41e37f41b2. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/BKPRX2300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b10456c81885e2a28cb11296c0d3ca0d4a756170da54b0c8ff9d4eb540d5d5b. 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/BK5182400019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x108f79db6cc781e8e1e5c920356d58b3932dacc0baf13f08660aaac27b5543e6. 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/BK5182400031.
Toque Toque DJ / Samara / Olha O Tirinho (Ao Vivo)
Como Eu Te Amo / O Cheiro Dela (Ao Vivo)
Como Eu Te Amo / O Cheiro Dela - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76a611dc69f983b2c381b34e58829d777f0d4d968b0156644177811665d9afe7. 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/BK5182500009.
Será Que Ela Vem? / Seguir Em Frente (Ao Vivo)
Será Que Ela Vem? / Seguir Em Frente - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12a7905e151c185c94ab1edbe69d3af06536f9896d6c18bc42ac2bc18ddc3cfb. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/BK5182500005.
É Mentira Dela / Garanhão Da Madrugada / A Gostosona - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd771572395736d223f5105b385312fa95ae1b300bd87a5507189d08cac6c3d91. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:00:06Z), 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/BK5182500007.
Eu Quero Seu Amor / Sempre Te Amei - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79f0b22b3d61379ae19630bf833945bbf55471473aa3daad56ba71a83ec9c340. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T14:14:03Z), 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/BK5182500013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2afe5a1985762cf4931377db723fc436a75ab142504f697cf3a7fcc4180dfd2a. 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/BKSGS2400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x534cb95092fb774c98fdb6df017f775c10811620b58142ab32b53bdb69e82798. 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/BKSGS2400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad24441f9c93735fe3f5212b8f8aa2add2797ee9d0c583a3ba5ac15d1b5c0e6c. 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/BKSGS2400017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2afe5a1985762cf4931377db723fc436a75ab142504f697cf3a7fcc4180dfd2a. 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/BKSGS2400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2ac3b2277b1faba1afc9a0f9f19a345d34e48edbf816909cd93bb5ddb9316b4. 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/BKPRX2300006.