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 0x401c446c357ba904921354eb1a7a482e90fb81583d001c35c9ce657bafbcee77. Chain 2 (Bitcoin): anchored in block 953727 (2026-06-15T02:33:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8ee01402-49e1-493b-9953-1700064680b3.json and https://artists.proofprofile.net/proofs/artist/8ee01402-49e1-493b-9953-1700064680b3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Feliz Cumpleaños (Version Nacho Aprende)
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 0x92d3e17af2f2243f7e93930a95cc362e9e9775a5d0dee83ce5fa676e646c719b. 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/CA5KR2329953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb5451d4b9b6af3ece5c74bb1022abf01c1b86c62726dfd6b4482d6679806a31. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T16:12:29Z), 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/CA5KR2332659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2c0d2f2e40d1a2208027ad0455fe4df0e57d889cb4e059bb1c6e7cf90008753. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/CA5KR2338641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95bb41971cf3c1ad7c90926060e14cb8407428dae820c89b531d9c3d0355d11a. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/CA5KR2341883.
Hacia Belén Va Una Burra (Versión Nacho Aprende)
Los Peces En El Río (Versión Nacho Aprende)
La Gallina Turuleca (Versión Nacho Aprende)
El Muñeco Pin Pon (Versión Nacho Aprende)
Estrellita Dónde Estás (Versión Nacho Aprende)
La Serpiente de Tierra Caliente (Versión Nacho Aprende)
Cabeza, Hombros, Rodillas y Pies (Versión Nacho Aprende)
Chumbala Cachumbala Con Esqueletos (Versión Nacho Aprende)
Canción Del Abecedario (Versión Nacho Aprende)
Campana Sobre Campana (Versión Nacho Aprende)