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 0x64a5b301a033991e24a30e3cb5eab8eeceaab3c4ce2a3758ff60c362d4b82fa9. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8442ff4b-7e14-4fae-80c5-90108e6b276c.json and https://artists.proofprofile.net/proofs/artist/8442ff4b-7e14-4fae-80c5-90108e6b276c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Navidad Del Sur De Huaytará Huancavelica
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 0xbac0800f90b065d6bda8351c4a2a36ee4dd43eab07b652a548e99faef21f1146. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZW9L2300622.
Sumaq Makis de Navidad / Sacsamarquinita
Danza de las Tijeras Huancavelica / Danza Mayor
Pastores y Huaylias Niño Jesús de Challhualla
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cc23f73a2f5abfc105b2b375c03b6a982442ebc9f0370a73a1f71803a1446d2. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T08:23:35Z), 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/QZW9M2332015.
Carnaval Carapino / Pillpintos de Villa Carapo