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 0x118c1cac7da3739d65421e9fcb4e7fc088729f588f1a2ad04791a67fb82982bf. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cbff744a-c725-4f40-b174-04d5f120abed.json and https://artists.proofprofile.net/proofs/artist/cbff744a-c725-4f40-b174-04d5f120abed.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Mi Lado - feat. Alansito Vega, Poté & Mare Advertencia
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 0x1ed9d53f3506f7bc65fc5eea13e3f19fd9b46e6de6b3d6555772feed68fe3ee5. 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/GB5KW2500623.
Ofrenda de Sangre - feat. Luisa Almaguer, Mare Advertencia & Alansito Vega
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd962476f8b58bbc23f49a5d5da14cd23cb024242f315b41876ce8ff6077205fd. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GB5KW2500634.
El Niño - feat. Eme Malafe, Los Pream, Mélissa Hié, Ophélia Hié, Joan as Police Woman, Marco Carrión & Alansito Vega
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd46b0d79cdf6661514e0b5af65a91eb8529c1f3d09584da4f7236689faeea3fb. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/GB5KW2500637.