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 0x1332cd4a16de829a3439d6be8ffb3821d5ac6c66a64c54072d29fddadf97d06d. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/98728ad0-73e0-42d5-9ab1-ffd71ebe51e3.json and https://artists.proofprofile.net/proofs/artist/98728ad0-73e0-42d5-9ab1-ffd71ebe51e3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0xb3beeda4fc678e5a34b37598b87643b5621cffb98b2547f2da39c8b187a3897d. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/COSO10801189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a0d655de348ec72e7e4084177163e13c58a1cd3b577dc7b99a5258d9b950d6f. Chain 2 (Bitcoin): anchored in block 957663 (2026-07-12T05:58:46Z), 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/COSO10801191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18324eca83d05e64c699d5a62ce0e658a8fe537bf809d825695e5cdf90830cb3. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/COSO10900137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x825b95639352a8af99aa90bf8f7506b37de4d491a5b801d6bece1edf8d05c08d. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/COSO10900139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb05b29f8cc2376290bcd3ed75252ba77e0957e7f9db207bb7fa6e0895a55dc09. Chain 2 (Bitcoin): anchored in block 959018 (2026-07-21T16:50:56Z), 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/COSO10900142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd13fdf96692e41ec4413078a508144cd0f9585fc95a391191cb446956a81a9d7. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T02:00:37Z), 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/COSO11100543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18faf77b19171a12d5e42fd201c19cde53cb04b0924e86e036574a3521723404. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T01:59:14Z), 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/COSO11100537.
Ya Lo Había Vivido (feat. Gusi & Beto) - Vuelve en Primera Fila - Live Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c983167f1dc8cde8b0c340ee9ba5b478a611a65f536fed6edebfef44463605f. 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/USSD11300380.