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 0x31a02a1292a184368967e6b69398245d297955bc6d82605fc0d76ff56dced3f5. 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/8c4c5547-8f88-4260-a189-cbbd8e3ca972.json and https://artists.proofprofile.net/proofs/artist/8c4c5547-8f88-4260-a189-cbbd8e3ca972.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 0x10431c3ab44faf815e33959b21484b2b5f6fd0b2cc2acd641f7febc84858be5e. 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/QZD5H2000512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ce426e37d0913ef2be8f82e461aad0f67ec27b0241513902b374e26b89fd489. 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/QZD5H2000502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77e105244693a0c9bc586a2eb9bafe925e4a6d4526c743517133fba98f82a652. Chain 2 (Bitcoin): anchored in block 956861 (2026-07-06T01:57:57Z), 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 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 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.