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 0xbc1fbafae9b52e472994fd91649ef478815c9143961b3a88d93c813df4157cb2. 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/37a0fbff-dab2-4c37-8b31-d8c5d931061b.json and https://artists.proofprofile.net/proofs/artist/37a0fbff-dab2-4c37-8b31-d8c5d931061b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Cheiro de Amor nas Águas - Ao Vivo em Salvador no Dique do Tororó
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 0x091170ef91bb3752e4e7c8299128565955ab1de80680e3044aaf2253ca608d5c. 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/BRSME1400876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4bb9bf54ec6f4b26608ea76cd9a898229088b98c0e32c459f9e15e54dd5360c. 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/BRSME1400881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee68bdb94fe49bf8ce6ee5fcd2ab5ccb3cc01a61251e633e1d3f6e7ca6f35684. 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/BRSME1400931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6d25c8137e1f7348d1d777d498c53dc39d7a38f3a1d75f2fdefdf9f4e276461. 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/BREMI0600971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0fcd35695606aa554eaa8051b66c3677b66b201adbb35335c7ee8fcbcb459ff. 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/BREMI0501115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19444b2138d5f6cd9374de036ca031ad9839604c8b3a5d218f2e1843ea22d612. 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/BREMI0501116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbebd9407b85ac68e837b8baacb751232b30a43d772dabfe9eef401072ba1bd9b. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/BREMI0501113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa612589c636e932ed16129da3d482c80d61cb2827e753d218c2bd11af170fac4. 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/BREMI0501118.
Olha Eu Aí / Pureza Da Paixão / Doce Obsessão - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xead3817ce5924f2a6f5a85578780f9ffd2ae7622e8e916e8801299e28ca0d26b. 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/BREMI0501120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffcd14aa8c57e947dc4ce53bee35a629eb018da2db8b9e1faf790fab8431d9fb. 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/BREMI0501123.
Ficar Com Você / Música Incidental: Me Pegue Na Mão - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41196cba9907368ef18dcecf021312498ab1c75a8bfefaa15ba65c8d4a26620d. 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/BREMI0501126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f68dae9d4fd1118e6c1602cc35976b1144518f51f3c2433a13953bda82874e8. 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/BRPGD9800034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd29b6a8120e2f5bb2aa829f8ce61fab3895a014b308366c71d3fa08a85c14787. 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/BRMCA9100052.
Cheiro De Festa Ao Vivo (Ao Vivo Em Aracajú, SE / 1999)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd75d822e02ef066be9c328aef395a8b634ff691277db83ec709ae97ec22b1fcb. 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/BRUM71702760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23f74e3e58b228f7729950a9ab5e1382c807a3dfadf56f4cf6678b99dfac6dec. 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/BRPGD9900421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1785048181c2d23f8bb294ecfec9ed58099175eadc2db484eb51adf7d5886494. 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/BRPGD9900415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc54ad9a645e2a0d0d08ddfbd1bef756d27e983b402b6257a5fbae9ca3ded85da. 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/BRPGD9900105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf08650a9e9ccb8d5e34b8fcb010c87b32b28068eb60d011e0b3271e1a8272f4e. 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/BRUM71702761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb9a0a4a2c1ad2e9dab2f20ee0db0cabc7a5cb87d6dae38a83d161960c2ee2f5. 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/BRUM71702767.
Pra Acabar Com A Solidão / Cheiro De Amor No Ar / Agitando Todas - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaddd69c027c1215b8ab9b594bf731cdaf19066be7fc5fd2326396a004b530d85. 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/BRUM71200626.
Rebentão / Incidental: Depois Que O Ilê Passar - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e290ba08a645cae3ecb623df69ab0c34634f97ab9087b534e0f082b30ce683d. 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/BRPGD9700183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x091c30da01695c7c49ce6622f6a4bcaa9bfa3288b4d4379ad4a67c799a92edfc. 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/BRPGD9700184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee937b69a09918e5975b2b45cf7416dc72d715f5c818923fa73d24b046650359. 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/BRPGD9700193.
Canto Ao Pescador / Doce Obsessão / Auê - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9508c2ec2cb79e375f6b28ec5226db4722c17c0338e96bf45cb088d12a77b5d. 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/BRUM71200627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbf1d6fe21e261259f4a380ab510616e91b2e000f83cf13858cac1ec548ee974. 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/BRPGD9700194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef153e0d237a6bd29cbbe1e3187e326117add48f65e54075afc39656bd0698b8. 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/BRPGD9600452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3199ebd0fa3b19307d905568992fda9ff90ece73781e5261babe05b61df8eb4c. 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/BRPGD9600460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66d053a41f73855bd3ca3c7c37f28485fc408973dfb1f8c769d3936c8374bab7. 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/BRUM71804000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd29b6a8120e2f5bb2aa829f8ce61fab3895a014b308366c71d3fa08a85c14787. 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/BRMCA9100052.
Proposta Indecente (Propuesta Indecente) (feat. Lucas Lucco)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8278e35d625da022390944fb04bad2f5cfb31fb9979a8489385af1bf2727986a. 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/BRSME1500471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa799abe966f605a853b5b3e2cf22f870025b1a9e708c8126d9193f7118a8c32c. 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/BRXPT0500009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfd3d056a5075167fc6bc706eb9cf5b93c4c73db9ac064537e54610b78c3a0b6. 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/BC7KL2500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9622ca32ad33e7303fc228c0d6d2677c1f969fd324d7b7afd34375c3c9974844. 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/BC7KL2400014.