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 0x4b3cdfe7a6f6c664940b11f77307ae92bad574bc2f8f3bda039f7ac0ce61043b. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/15a4d36b-1f21-4653-bb9f-5aa89968d722.json and https://artists.proofprofile.net/proofs/artist/15a4d36b-1f21-4653-bb9f-5aa89968d722.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 0xa1b9c19068ae90420e2b3f98ec88dc7ff0bef67d870376334458c8b3e8668bbf. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/SE6A91997359.
Esquivando Loros (feat. Brianmix & Franco Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf8929c52e1743800908d65abb79f4a5007c737b61f57a9c8ea0bdc1f1897904. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBSMU7781159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f41fe62c292e5eebacfa6460f7bd6b39e98c3fbfd29782ff744cf38ff64a304. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/QZ93L2028781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aabbb5002f5c6b8950df161979bfdf66af6c0a1a131031917469a2eedff142a. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZ93L2044470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31e60e307b0ed1eaf37807833e104c894563ffe5a9e3fe36c274204dab066a2b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ARIXB2101202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80faf7af63e33821b596d9f6b332c9d5f84c87ba6918131723ad24dc32f9e00e. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ARIXB2101203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeea01abd9542c2684801318c1f5addf04706c4a23e601fabeb9537dd1495eec. 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/ARIXB2101204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2da7a10997bbb5d86cb7d9067c6dfb942c8aa205378233603264e7b7e8dba629. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ARIXB2101205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c7976865965b9369fe236fe3e1602a86d63ca70f2e9eb6023fcf34a8af4a0e1. 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/ARIXB2101807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc37931bb381e22916eafbdd9e9610e35674dcfdd061b75ba8957fa4b8b39c5bc. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ARIXB2104426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2a3085ea03feed68c37c02c3273cbb83f400d04bd354393664b814541e36da0. 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/ARQIH2290898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2a8c839fbdd21067f3ecb22d748fa83ab0b2a183c25b7b865d718cd1af16965. 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/AR5UH2300036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5df2caa1c6afac5986eb33f9678a27fd30b0089a63231e32e3a3961075422780. 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/AR5UH2100101.