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 0x70b49fd284c605ce05f24abaa474950b8d82b8693de547f62e9ce70fe38c5105. 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/aef981b3-e1a6-49c8-80bc-a20b9a4704b4.json and https://artists.proofprofile.net/proofs/artist/aef981b3-e1a6-49c8-80bc-a20b9a4704b4.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 0xd618259d6338d72a31d8e55c3033203b4028ad524ff9f71f955b3772f8bec6d3. 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/BR8LU1200077.
Eu Ainda Vou Ver (Coração de Pedra) - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74091299557db5df5ee5ac7bb80607f54771a096c9ceb82e898daf6f5c154c1e. 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/BR8LU1200078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x534e92ad389dbd7b4536a4d0002e170435c0b3334db7616ede413b1e51f440d7. 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/BR8LU1200079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x441dd73a0dc8564f38d6709c47d4f724d5b3f2ddca55c9df1f76bfa087b844b2. 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/BR8LU1200080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bdf7e2fc414193d6698f15aea100b08d98a39d6e5c99cfea07a10ea42d896fe. 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/BR8LU1200081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec5fbe9a03b23635d37b20bc99d4ffa34594b8729869c57d36c5006b198ef4d2. 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/BR8LU1200082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06ec9d97a783e1c6b24bfe7bad7e41be2eccefc5e10ef262f8f319f9d744bf88. 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/BR8LU1200083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e7af66d10062b09a37e887602ca7d56d45d621a8fd74b5630ca991bf3867294. 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/BR8LU1200084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc38bb4910ff7e5f254a402f2a262d16a49c8ac40410deebbc46d438305d2aed4. 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/BR8LU1200085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8389379b36f31b9e80fa6877b6fdd911af394b64c71d7b19b2ad4cabb9a56b4. 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/BR8LU1200086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd74084c1d5f545d095edbd747f8457b5ed1adb63a15d811bda2b4bdb3db3c489. 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/BR8LU1200089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ccdb908634f0baeb7c9122b4fa836b6f4b86a51833f506704954d19e9eca9b4. 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/BR8LU1200090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcb328d1b9ad01c8869a184e5abaf3181460e2782451c08647d3b7fb89c15053. 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/BR8LU1200092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d7dcaa363d179b41901cdd094fa78e9bcbdac3c36f0b49652d44bcdf8639f91. 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/BR8LU1200093.
Onde Está Você (Meu Amanhecer) - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6def3c68e0950927a70666732d43e4cdab9443577711fef067734d11a07db1f. 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/BR8LU1200094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1d269c4b3b2fa91fb5a9e35ae0f24a5aa966812ba30759181c3bc0801ba2892. 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/BR8LU1200095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58a058883781c2acdbd36a58c7d44a2adbbfe31431eee6e6f4aaf22d6815fd00. 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/BR8LU1200096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37acb950542a91406cff7bce3f98bc044f77ff0c00d1df3936ccf48c19137958. 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/BR8LU1200097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x201605e1f7a401763fa864b042bb4346f8cb2e230e666117a37d2f365ee05784. 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/BR8LU1200098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb9337bc2c7920bdaa571be96bbb91d0f61cbf2f89e5658239f3e28712eb339c. 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/BR8LU1200099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b950b21b476711d7c425397dd1989ce38bbe2bc06c808b2c69ca88a044548b3. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/BR8LU1200100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe73cf68d233d92d05be320a75da2c6bd63b4ad1517e1f1da28f7ce941c9417c. 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/BR8LU1200101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dbad27d729d7267568fc965b4f5fa0b4f522d8e2dd3dfa42ee244ffb7ac3114. 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/BRWRT1300097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x235bc9dd2abce86e0b5e37cf8d71029b6663e605ea6382baed5b8f5dbd3c831b. 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/BRWRT1400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37acb950542a91406cff7bce3f98bc044f77ff0c00d1df3936ccf48c19137958. 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/BR8LU1200097.