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 0x1d9710909948bf54569dc34d03a4b730d618e710c80fdf236d55a480bd80b128. Chain 2 (Bitcoin): anchored in block 953746 (2026-06-15T05:25:34Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a54a08a3-e260-4245-ac5d-12cdf12fc0ca.json and https://artists.proofprofile.net/proofs/artist/a54a08a3-e260-4245-ac5d-12cdf12fc0ca.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Los Dedos Mágicos del Ecuador, Al Que le gusta Tocar Las Blancas y Las Negras
Los D2 Mágicos del Ecuador Vol. 6 - Lo Mejor de La Cumbia
Música Ecuatoriana Con los D2 Mágicos del Ecuador
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 0x32b240ea0c37c7ac9760cefa42d04d362b83ce61c8eda3d696b1a89b07fb88c1. Chain 2 (Bitcoin): anchored in block 958407 (2026-07-17T12:08:48Z), 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/USHM21784717.
Música Ecuatoriana Con los D2 Mágicos del Ecuador, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2912262e50f2acaef9a8528f8a50e5c06e8e2b96ab2dc77dfc4408b2192740d4. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/USDY42050835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7b3ce1372c29bfd44b9a09c56e24e1bc7c618c7bd109800fc8f0e59311baeba. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/USDY42050839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x559b27da6a456c738a0ac9f758e518b93e0426b61f234cfc0d970b9bb978d668. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/NL8RL2316973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde22c63e168b08238f185b54c4efbd53a3a4703a3d7c0790d44b11637ee76f06. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/ES71G2237770.
Alzando la Changa / La Flor de Chimbalito / A Imbabura Me Voy
La Fiesta No Para En Cantares De Mi Pueblo