Sorriso Maroto is a Brazilian pagode band originating from Rio de Janeiro, Brazil. It was formed in 1997 by singer and tambourine player Cris Oliveira, and later headed by singer-songwriter Bruno C
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 0x0aacc8e3fbe3e3e939a2c469e413354052ff056ece719bd9809f5cc4faf53e25. 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/c434c52c-7024-4b69-86e3-3f799a2aabfe.json and https://artists.proofprofile.net/proofs/artist/c434c52c-7024-4b69-86e3-3f799a2aabfe.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sorriso Eu Gosto No Pagode - Parte 1 (Ao Vivo)
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 0x382d0bd1d909362829c3cf4058a90be0be6f828db9e30da0f896f4cd5bdf202d. 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/BXS8V2300015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe90f5c20b974c23bb45c94c6cf9bf202a16306eae1fc134108ae61198feee7b. 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/BRRGE2009436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd625eb0a3249467d1cc87f0edac66929e46b77bed9c7dc16ee37c8895ffb232f. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-21T16:06:29Z), 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/BC29Q2200027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb540a7665524bc6630ee5f8cb12c58d2f69cffb3e113a3abaa6cf043ad1ae6ce. 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/BRX5L1200064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe90f5c20b974c23bb45c94c6cf9bf202a16306eae1fc134108ae61198feee7b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/BRRGE2009436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe90f5c20b974c23bb45c94c6cf9bf202a16306eae1fc134108ae61198feee7b. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-21T17:13:44Z), 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/BRRGE2009436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabdbad881769683a9e4bcb38632d03162d6ade1eddfd67354b06759ae2c4fedf. 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/BRSME2102422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e067cc6ff90875c7bb5bbbc2ffea4c1ea4c18e25e685b93f7993a3e7b4b2ebc. 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/BX6842300038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f541b21526fed16724b87d4323202ba2e3cb34036148827233ae2574408e5ad. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-21T16:23:15Z), 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/BXS8V1800041.
Pouco a Pouco (Ao Vivo) (feat. Sorriso Maroto)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ece47428bb65563a246496eb6d0d41b87c610dd249f06ebbfa6fcfae79a4888. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/BRSME1802938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1861b33a6246a921e02c091c907db4f1b1f31cd4f0d01c7f8543ce39304f76e5. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/BXS8V2000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb450716d3afd61b8b20bf137f3951d3b665d1eb12dc86e173d1979dd7cfb5ed2. 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/BRUM72202111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb450716d3afd61b8b20bf137f3951d3b665d1eb12dc86e173d1979dd7cfb5ed2. 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/BRUM72202111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfef88f3431f21ac639ed71ea01943a284d1fa3761cfae2e425bc1e99c313ad31. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/BRRGE1404401.
Quase Lá (Ralk Remix) (feat. Sorriso Maroto)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb4a1612c8c2125bb9f3bc989ee8dfdd78affb0528fbf206a502604bd0f13093. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/BRRGE2011077.
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 0x7b42bc41a0a1b89897faaa1669de40b15020af77e948a6a29f3e0c503da899f8. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/BRWFM1400008.