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 0xd4d31e1b1e8bbcd201c662eb347b9e5d0a699c35cb7d8a86295be99346e719a7. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e3fcdc40-79ab-4ccf-a727-1caf0fb97b65.json and https://artists.proofprofile.net/proofs/artist/e3fcdc40-79ab-4ccf-a727-1caf0fb97b65.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Cruisin on the Beach (feat. Typical Hawaiians)
Th Reggae Hui Compilation "Island Vibrations," Vol. 1
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 0x326192c32f9b0ab4b9700d547f56f9499852c9664ec209fc64aa35d43b91ebd2. 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/TCACD1523758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc822c7cfc8aa600b282c414c8317d0abdd8fba4a5674f37c6f2f1f714e05fadf. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/TCACD1523775.
Imua Hawaii (feat. Typical Hawaiians & Thomson Enos)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e3d212b8cc6cda7148db4123094987d01aa4ed81cb9101933553d4b2d4bc077. 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/TCACD1523794.
Make It Right (feat. Typical Hawaiians, Thomson Enos & Jason Murphy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x970788e19964ebaf5896e11a909a3f95988f5ed36a7fe0127907a98c063c8861. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/TCACD1524165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee746c9d868312fdace80ed044fee58159853ff9bae462da030b7b4151cb9051. 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/USTC00935010.
Island Reggae (feat. Typical Hawaiians, Thomson Enos & Ronald Boyce)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd94bdad695dacf3007f48e7cc56f2806aa902abb4c053cdc0f943d331ce04e3b. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/TCACD1523740.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Watching the Waves Go by (feat. Eko & Red Eye)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2c47f92c8b6a5c0b75c776a804fb5c5099c84106b2efd6a4e07337b9d299d9a. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/TCABY1477560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59a190425b7ca857329d304bba67cf467dfd3235d5d9b7f5dc3b69394192d0e1. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/TCACD1523792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a3056e8dd75ac07a720f93828d119dab60b4ea705de194201499ca4bca1061a. Chain 2 (Bitcoin): anchored in block 960387 (2026-07-31T10:06:30Z), 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/TCABX1481067.