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 0x5f4e5df5c5e238759a302448ef596c37e7dd8932f90ad21fa13b7ae63ff1ac11. 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/595ea029-dff6-4197-956b-f0afdfb38bab.json and https://artists.proofprofile.net/proofs/artist/595ea029-dff6-4197-956b-f0afdfb38bab.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 0xa68c4bca10078c2c9db338a872ea8412e854ad2893438ce2f8aec147433e8dc6. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/US7VG1783846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a49201306622566c91d726702c2142fffce6b295b7ea06e7bb2a930b0813a63. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/US7VG1783848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7baeb4f87d1589d4907467bf4c4bdbb7cfbb2f3b099833d79b71357e445aeef8. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/BRRTF2200026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7baeb4f87d1589d4907467bf4c4bdbb7cfbb2f3b099833d79b71357e445aeef8. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/BRRTF2200026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb15382014866cabd259e36a961f4634b9980a3a13649192cd37cf083d19a420. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/BRRTF2400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17a3881f93847e6ba09bcff0ee365bd90c59859613d2aeaafb431d8efe770670. 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/BRRTF2400031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17a3881f93847e6ba09bcff0ee365bd90c59859613d2aeaafb431d8efe770670. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/BRRTF2400031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac47621b120fb58c2cb9014719102c37e60faefd5530b182cc04989097b43e64. 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/BXMKS2200511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac47621b120fb58c2cb9014719102c37e60faefd5530b182cc04989097b43e64. 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/BXMKS2200511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac47621b120fb58c2cb9014719102c37e60faefd5530b182cc04989097b43e64. 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/BXMKS2200511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc35c038844e464718ff09297e2a58e4ef5d4ce0c621f2f8d443c992d6b7c3f1a. 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/BXSWA2200013.
Até o Sol Quis Ver / Estrela / Abandonado
Respeita Minha História 3 (Canta Exalta)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee44eac3b3ffc4e8e6811579747b00b6a7512b9e0bd2c65abc145bdfee4e8dbd. 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/BXSWA2400284.
Pagode do Príncipe no Sítio, Bloco 2 (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aa3522653cbb7b30fc98f482f1f701bc8628b1e19ecb54522806be5f34df105. 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/BKOLM2500012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bace88fe4fd61bb833ad498ef55f9a5dc602279ac46832bdb5aeaf475ca53fd. 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/BKOLM2500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ce5468a5e3320c3e62663910cf3cf87414fcdaa17777cb02afc8fcf26b0518d. 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/BKOLM2500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77d37ac73398262ecc35e90730551ed08826d19b9fac48e80fb0ec1b4836480d. 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/BKOLM2500003.
Namoro Escondido / Uma Vez Só / Sadomasoquista - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40fc2badba647b7dc0295acb6bbc650c5c0ea62c7a91d70e89d03275372a3352. 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/BKOLM2500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6523ecaadbc9beaa0fe5981303427a84f8df227f96cc7a51a3f2825dc87f3343. 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/BKOLM2500005.
Controle Remoto / Pai do Filho Dela / Nem Todo Homem Mente - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f5e1ccd6f5090c9604a4539b4eeef41b4aef75135902a40354e4d3b1659c5c0. 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/BKOLM2500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3930acff177f12716f105724b7a3eeb93e2252488157608f4314d42524db541. 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/BKOLM2500007.
Papel de Homem / Três Homens em Um - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69d8583d770ea91b03311c7ed9cdc5097d8264b6afeeb5ea193e5d91760ff5d3. 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/BKOLM2500008.
Três Homem em um / Vai Embora / Sem Você - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cdaf9d1c15333187db439da4e54fa99f56cb368c9cd6b41c487838914a3a777. 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/BKOLM2500009.
Te Amo Tanto / Loucuras de Amor - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb5250c0f1c1a9a668e1dccf32cc206774fd05787711411a74574a855b14e805. 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/BKOLM2500010.
Dublê de Namorado / Acende o Celular - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13137e0774631dc9f8dcd78bf48fc47bedff98038af4f75074899260b6def976. 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/BKOLM2500011.
Pagode do Príncipe no Sítio, Bloco 1 (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b67c5183832e7827b6f62c44958ccd9457061307a39b3a966a67ec249751a11. 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/BKOLM2400001.
Por Amar Você / Namoro Escondido - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf397c7107b273f4a27db68d2e51b03dba4895c80d12e8100d7de3fb23691ff47. 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/BKOLM2400002.