Grêmio Recreativo Escola de Samba Unidos de Vila Isabel is a samba school in Rio de Janeiro. It was thrice champion of the Special Group of the Rio Carnival and is currently headquartered in Boulevard
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 0x6b7021ac2febc08afe9b830eb152b6ab2c57b6481d8bad41182fbf72ca749cb3. 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/89b6b41b-1f1d-4c96-8a24-18101acc29a6.json and https://artists.proofprofile.net/proofs/artist/89b6b41b-1f1d-4c96-8a24-18101acc29a6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
10 Anos de Samba-Enredo - G. R. E. S. Unidos de Vila Isabel
Sambas De Enredo Das Escolas De Samba 2017
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 0xee1fbf3f368634e3d31114e6a793c3a890ac642a6c91d1cf8d314c6166176149. 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/BRGES1600008.
Sambas De Enredo Das Escolas De Samba 2018
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c3718128c597a327ea480583933ec12dca673ec2bd1b1812e3546f175f25876. 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/BRGES1700010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ed323c9425146072855d5673d96388c87b3ec36cef9ca1f73f737cb5c33c8e1. 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/BRGES2200002.