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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1fb21e210b1702025e41aefedc7207ebea5d3bc1954663f52992c3352f1fbe3. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0034f65d-c5d3-415d-9cd9-370a358b182d.json and https://artists.proofprofile.net/proofs/artist/0034f65d-c5d3-415d-9cd9-370a358b182d.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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x479751b22f4b0c03f5c70f5ac80f35c8e77ae3aa3d367181924617ad1a45af94. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/US23A1501942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02647fe77183e99ecd8a1ee94d70e5b9c4e0b509b8dd212b9162727b46c2127a. 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/US23A1501943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f4e05603548803bf42281f01535a902528157671f7b69b1745690d6ed181fc3. 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/US23A1501944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ab0d7c66712cd13db2ee4f03bbecf708bd150deac1fe43a09d66e7c5bbf9489. 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/US23A1501945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa3089f2819baaeba52313c8bd8afd73c73c9bbd94953ff1dd6cd6bddad3ed88. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/US23A1501816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf02777ee02fa40918ef3d23d3dec4c6113d3db7ba22c44526fcf7c6672e25043. 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/US23A1501946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd655470c6416e40300374d92631d33de8cdc388423c7765bdaacab4e99bd4f4c. 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/US23A1501947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c3b5cbecbeed2e1e7ee58fe809b9be6f87db2c06d12d09fb7e60a901bdc15ed. 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/QZD5H2000525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53c397faae8c824288eebf937cdaea02c2b2d37430bf40401982b3456e53e062. 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/SE5BU2462638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0d79dc7aea399a957e037c49098621bc2aa66394ddbe974d971a30ed241fb91. 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/QZD5H2000526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9510548596fe62d7a61ee6f6a5644beb8777affeec8ddfb9fedd4b12f56d17e. 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/QZD5H2000527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10431c3ab44faf815e33959b21484b2b5f6fd0b2cc2acd641f7febc84858be5e. 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/QZD5H2000512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2430e8de96c9f004b38bb711735661bf8920c2824872f6ebb359937684f278e4. 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/QZD5H2000528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12599aaab67536cf4717dbfb4fb23f49bf124c4a053d21b41f01f8bed9685b38. 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/QZD5H2000529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41e030d3a12600ea3294145841b0d7d35881e384c27c8165183e39f845c8c481. 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/QZD5H2000530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c4615025547efd0b4aa6c8a0acef6c513ba38f1aead952f6f87b4b166336469. 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/QZD5H2000531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x666e65e5434ae3ff67a02cbad52d1549f2af0d69601d58d6ce064d927014aaec. 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/QZD5H2000532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08d08e9a717fc4a5bf55480beca0646de97bc2812a21458daa511c432986cc4b. 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/QZD5H2000533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3fb71240f683977a0d33053e019e85a570afac55b23b5cdd4d272b10ad1ab07. 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/QZD5H2000534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa41fd787b9c0e490349a6637500e09ae089e7e95f7d82cbda0e09689e4e0fede. 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/QZD5H2000535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ce426e37d0913ef2be8f82e461aad0f67ec27b0241513902b374e26b89fd489. 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/QZD5H2000502.
Crown Bounce - Real Groovers RMX / Bonus Track
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77e105244693a0c9bc586a2eb9bafe925e4a6d4526c743517133fba98f82a652. 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/QZD5H2000511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7feb59e17fd9a20cc51de9ee43cd030ebc0cd51b010dbf16304cdcc5afe2c6d5. 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/QZFZ61926564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb26ec39fdcbe952be941e3f59e880cb5590aa9dcfb867ab6c87816f95f9d043b. 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/QMFME2412810.