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 0xc140f037d10206cb2e703e8fc31eddc2189e2205e3dcd0c3721111054fe7ce54. 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/aa7b699d-8d64-4159-a327-8d3754daedf4.json and https://artists.proofprofile.net/proofs/artist/aa7b699d-8d64-4159-a327-8d3754daedf4.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 0x66e1541e2c695f39cb8d46f634d4e6947c87f1c052fbc76851f9517be2fce0d7. 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/QMRSZ2100913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67dff81f7e7f254a8ba9bffbfe8a589ae961c2ee5bf2079e829548288765d1b6. 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/QMRSZ2203231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80be37ec01302bd407a58d73c7d841c1b362547e69733388218ae4025e505d83. 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/QMRSZ2400433.
Say I Ain't Pick Yo Weak Ass Up (feat. Ballout)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe25a256cc451aa1af8dcfc715a3b1af2dcea65e7b332880713bf7934abda1d07. 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/QMRSZ2102955.
Go Live (feat. Chief Keef, Ball Out & Tadoe)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf110fc273e6c52db11262949f4235e10d2ac62135a1be1407e70007fab75dfcd. 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/USUYG1156964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3905d2d97e2760a9c48509f6a9275ca740e5d632be009e12bb55dd22163cf111. 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/USKO12000473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b7502a2100771a4fc4bd451a97160897e33cf46082ccd1a915bb6450758e625. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USUYG1101056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf31faef55d898d5d54a936b0b4a5b6210b161d20752bedea8e648d176ee2c74c. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USKO12000525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d16bce113cd601987a998eb4227f669cda9df5072134d9e284d1a1012d8d09d. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T17:42:06Z), 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/USUYG1105727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22302b44b310bb629fc1b27f14e5a634d810f96c2f8cc177f44d0f472b446ffb. 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/USUYG1101063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x492b8a67da8ec4e6a979b5a7f846f8497502c894d1c7d2c3a37a21db329a1635. 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/USZEG1700009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16a0a5c5fde9242c1baae12f29293e551d1cbd3a266409e07b9987902760d283. 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/CA5KR1807708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83dc26a690ee94d21c367232540c4a1b0ae94310a39f3088cc0e748b2912e1b3. 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/CA5KR1807710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc6ae1208b93f76572c8cc57bec1cfb4a47cfc3271c80e3b5bb9c00b9a4eca3c. 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/USAE81402327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefd8530bf0f67b08f5b1da5a5598af0dcd00957adc3efe662a1ce0c82d1e0e07. 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/USUYG1105639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5752bc4ffed7f51f0fe3ffa7945e34a4118d68a1dc958bbaece0efa42ee85a92. 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/USUYG1100993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06373281104f564fb0f3bcb21f5c9aaae00ea6fceea4b087a584d54f4553f0b5. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USUYG1100995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ddb1884bd1614abd02a236db40bda62d41db818097ab5fbd3f1cbf890e34908. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USUYG1101074.