Rufo Manuel Garrido Gamarra (1896–1980) was a Colombian saxophonist, songwriter, and bandleader. He led his own orchestra and also played saxophone in groups including Pedro Laza y sus Pelayeros, the
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 0x1ff39209c2d5cf3f54f541bebf86f0078442a0e35071db790646d2a5d1edffc2. Chain 2 (Bitcoin): anchored in block 953791 (2026-06-15T13:40:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dd00f252-1c88-478c-89a6-a1571d557b60.json and https://artists.proofprofile.net/proofs/artist/dd00f252-1c88-478c-89a6-a1571d557b60.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Fiesta Costeña (Rufo Garrido Y Su Orquesta)
Historia Musical de Rufo Garrido: 40 Éxitos
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 0xae884d51b3cb2b338df6bb4ded788c6769e98dbf2df372cf2758e57dcb0174de. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/COF019501943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf06c3cdb6a8a751c2f7d95f0f287cd4d661cb924a1922cab3a0ad6f7082d7a2c. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/COF019701238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69f265fac7b09d0bb619740ba5c4b8f1a746e45f33f2ea342c1337e8dd2755cf. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/COF018810434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb8d80acca3be0f4a241a9c3333e8510ec5a1d409b66a3590985484d62bd69d1. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/COF018805958.
Fiesta Costeña Con Rufo Garrido y Su Orquesta 22 Exitos Con Cañaña