Ca7riel & Paco Amoroso are an Argentine experimental trap, hip-hop, electronic dance music, and pop duo formed in Buenos Aires, consisting of Catriel Guerreiro and Ulises Guerriero, who are known indi
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 0x9515d9bd4bff514415d5c96365b9396f4dcbf04e2851fe2aa6b8f5d4723b4cfa. 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/408ec192-9481-4e16-a520-d5cc1be0c2da.json and https://artists.proofprofile.net/proofs/artist/408ec192-9481-4e16-a520-d5cc1be0c2da.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 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 0x30c166535b2e553f66dd0125a3596e9821add999671fedc8fd35862d77793aca. 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/US5022400034.
Blow My Mind (CA7RIEL & Paco Amoroso Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10f1773dda04e7cc556b8f490b00ce00b6cdca58828cbab764b6c76fdb467847. 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/US5022400029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01cdc1fd61a76569758924ee8ed2c43f1949eec18a041474d27c7a3a9626f434. 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/US5022400030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7367cfef01c4bea88b64f5ad445b1a7d2f7bcd118a41dfd201058de06918a46. 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/US5022400031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07a3d51c87e7c95481f564ba4660f0c02baa64c910d4c117ff7421e3c1937bd4. 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/US5022400032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cd84dea919ffdad36e95174def7ac37c093a133ae3656165f439f138ae821fa. 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/US5022400033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13a28fbae507c43a2c2e64bda0d64bdf430c45470b880af377d5f7c6882208a8. 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/US5022400035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa12c3ba133f7719ab0cba69f4ae823e87f9f98afa4d60ed3adf7af097df2fd95. 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/US5022400036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0073b9703f5e7a46f90158c6024d4c0287c4db7dbfc6cfcd931c8d1d7ebcb6a. 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/US5022400037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0441657136225b7252c78a6580a80054b7e092cdec0bd8d91d120dbf765ea553. 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/US5022400038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdebd57a2ac325ecf79b092b112d8a49524f95ff4f5a963b242ec34c8c55eb643. 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/US5022400039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cd8bf24aab95b830315e0c85f8f1ab65b309b7a8dc1140cde95756e7e105401. 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/US5022400040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dcaa61c8033e2dfab6a1397d844d9c889f05cc6329cca33ea6e3aa4c9d8f2c3. 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/ES5022400903.