1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x1c7c36a4822c3b084d5323415d51d3e65ebf938f90de51eb3845b81e88729867. 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/4cd92d1c-a0bf-4c5d-88d7-e96e919909a0.json and https://artists.proofprofile.net/proofs/artist/4cd92d1c-a0bf-4c5d-88d7-e96e919909a0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Hora Ki Bo Pega Fogo (feat. Mika Mendes)
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 → block OTSBitcoinBlock must exist at that height 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 0x587b23b46b420cbbacce51bdecc24579a4fb811aa5bf8b504367efc7164c04a4. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/USCGJ1222239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x125e0f7b82e2f05837669af59a384361d280e1b1646200a29a6b8f386d303c30. 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/USCGJ1561140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf327ba6ee09f93dd91eb10558feee0b1ffac436e8c3c93903496ba860323dbd4. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/USHM21675754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d63c6be56167694c90a6876be30d679ebc0d8f380b0bd7ec01a8c2676cc9e2c. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USCGJ2086672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71dc33c25488b754e5d266564849305d004a6cd81d41119d2a7d2f7381494e46. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/USHM92507143.
Kizomba All Stars 2013 (DJ Waldo Presents)