Vila Isabel is a middle-class neighbourhood in the North Zone of Rio de Janeiro, Brazil. Known for being one of the cradles of samba in Brazil, it is located in the subprefecture of Grande Tijuca (pt)
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 0xb25c6e57855dd96692afccf660abc9c372310411c67e492043003d2a3cf80250. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e987744e-4bed-4e08-a6d6-501ec41535c3.json and https://artists.proofprofile.net/proofs/artist/e987744e-4bed-4e08-a6d6-501ec41535c3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Soy Loco Por Ti: A Vila Canta A Latinidade!!!
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 0x79520dfab772b3f58af637b4cc2b5f48ac05e80dff8bfb3217ed17b1d61142ea. 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/BRGES0500010.
Singrando Em Mares Bravios... Construindo O Futuro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb5b900d9032645915f767c6f34325fcc435dced6e187b069886ed691afb2c3c. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/BRGES0400014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54ca1282b66416c355d1a07d0472d40a15b5c2eb1b1d29c9ff3204499d938d80. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/BRGES9600012.
Muito Prazer, Vila Isabel De Bragança e Drumond Rosa Da Silva, Mas Pode Me Chamar De Vila
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13174b08fb454d9d254c79b5d4e6a67531c84945214480abaed7f87d0b397b56. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/BRGES9300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x017c10b115a2e87e337dab82b7f25706cb751868123f9f26d9c82b4c146ce391. 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/BRGES9200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdce02ecb495d482857652e0f73d76313c9fe93e8220357d350f63164c173970b. 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/BRGES8600004.
De Alegria Cantei, De Alegria Pulei, de Três Em Três Pelo Mundo Rodei
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd03c52647c19b82de59b1ef905fa6cda322f2267a996940f318253eda204df79. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/BRGES8500008.