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 0x572874e5f08fe7c5b97eefa2fdbd8fc5a61509248c2560344b6d46a8f66cc458. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fb62bf28-2fb7-4fd7-aa0f-61d4df92bca0.json and https://artists.proofprofile.net/proofs/artist/fb62bf28-2fb7-4fd7-aa0f-61d4df92bca0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Échame La Culpa (Operación Triunfo 2018)
Échame La Culpa - Operación Triunfo 2018
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 0xd8a33a21b6f2d11eb2fe72f4158d97759cc3d28da47d5e9f0933d24a2a6f3742. Chain 2 (Bitcoin): anchored in block 957839 (2026-07-13T10:06:30Z), 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/ES5701800965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb971058c59b6462a86ef017a2ef2b521ebb153f48312d731b29b8fc9e0a37f29. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:44:39Z), 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/ES5701801014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebc81bb2cf4bbe695c71d5025f710673369a869ff6ed3261b1bec037dd28c8ac. Chain 2 (Bitcoin): anchored in block 957852 (2026-07-13T11:25:45Z), 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/QMFME1901906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eb2a908082718c913d9f6d101971695a63d328dfe95b86a60e693ee88677858. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/USWL12402102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x118db2f491fd9316cd19c8fd8f46a881d873afce3dce95a91b7eb4a27cdec8c5. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ES71G2025575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x925fd08107ddb46031b7a2a4c8878432338dd0b78321f0c464768a5f7cead8f2. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BRSME2301243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x925fd08107ddb46031b7a2a4c8878432338dd0b78321f0c464768a5f7cead8f2. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BRSME2301243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d07fc07f2f0d0fe78ae5166903fdcdd971d9141f7b3f35d9b9d509591fe689d. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ES71G2142951.