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 0x681b573a87859b7c4d45c1d23e464cae75c6cd75cc5706529c4b1b5ef885209d. 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/81a8c276-2e7a-4f22-9508-d0128dd09e2c.json and https://artists.proofprofile.net/proofs/artist/81a8c276-2e7a-4f22-9508-d0128dd09e2c.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 0x94f2498c39edffc882509786b212fdc11fbca704f858b46fbef20f6c69aec25a. 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/QZMER2063504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e4b4a0cf4e25eaa9b33245adc07533f771e466aadb61d2c399a1294908942ff. 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/QZAKB2141416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58229ec699543d77a541c648fcfc52493450de4d408d86d09977131d9288c018. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZAKB2141418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23ae4479f768379a2afe54f2dfd187fd453d62657cbc6f0b7ae19dc6d83e7651. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZAKB2141421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f3e88a92f01a9891c568370d60b61ea82cf2fe3ca2496df61931b0e12e8f10e. 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/QZAKB2141424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13afe778de704764addc9ee56876c4e5f44a780b06ce0bcc3ba38124f17927b4. 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/QZAKB2141427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23976d1d7725a6e980e3da450db704f4975f3d49abe569ca967fd0943c48fda9. 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/QZES72036462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b1f29a1c1e498745d70071c202a076537916c12b7b12ed85f218a9a92a206b4. 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/QZK6M2014087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23976d1d7725a6e980e3da450db704f4975f3d49abe569ca967fd0943c48fda9. 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/QZES72036462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ad10835be3158da0c877b42995f6d0d7912bcca321f0ca0a8ec1fc485e9085f. 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/QZFYX1993131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38955e0af0d3bd3b370bbcb9f8d9446e9b0f71972ec276f78b7efa5950828b0c. 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/QZFYX1993134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76829264c734051e5a7da47842a3791d6dc5b86d3d5326e23ca0ed78dfe6d890. 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/QZDA51857258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x859554f8c2396fceacc762ddc71e737aa8f380d4e280391f94a41134f290b7bb. 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/QZES82354136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00164f30d5b7db891a8310a824a5c5c6729db9c6f3f7a3d8eedd2fe585dcfb52. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZTB62271731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdad9bea75796847c651160b192e48fd05909fbb202584602f62e52767e4bf5d9. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZTB82260004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6330d7911766ae01a0d60dac1253482fd76800911e283402d90cc61a02297ac. 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/QZNWR2244379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c77e5b1f309d201fae50af8e38b1ca7df0e6c29a5cb49f7664265a09e7d5ba8. 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/QZHN52228649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10f03bf7a8e241ffccb1e43876373a50de3fd664e51f0b0d194d6fae9ca65c82. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/QZAKB2165054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd25ae5150e06d786dca81ec7e8372ab15f40defb8a3bed7ece86df9960ec802. 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/QZHN82131735.
Laugh Now With Lemonade Cry Later Mood (Acapella)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23976d1d7725a6e980e3da450db704f4975f3d49abe569ca967fd0943c48fda9. 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/QZES72036462.
OMG [feat. Chris Rivers, J1da & Solis] (Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76b7700b37e5b6714b32ef82fef51fb1b9d01020ebddd2ef918a64948660843a. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZES81870781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x078b2e9366cde5a3d44b8e94ecc53d79a70d1f18bba08dd2d928431c0004e378. 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/GBLPF0212784.