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 0x50f6ba95142559b5697433722098b40e5bd754925f83681a5b85cfb40e578016. 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/c2901ccd-6d18-434a-871a-d6b93df4a883.json and https://artists.proofprofile.net/proofs/artist/c2901ccd-6d18-434a-871a-d6b93df4a883.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 0x48853fe810009295ec283bab403066543325e6bbc52d8f3529bef8a4bdf8a2c5. 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/US7VG2492564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5b931eaca5230bbe9492a3e73954cc84747fb24f6a9ffbdd77a7098585cafb2. 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/US7VG2482126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd62b6e18c8ffe9ab5d47d26df3abf0216c82c295566d7f1486885e659ebad10. 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/QZHN62374609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x321132861b48582b1363c06ba8a582203103c8b29e07fe60e66ffc1d76d0d4ce. 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/QZNJX2343078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1d78dd86ab9482bff16028f951d1c4b377e4171344b2b1d98359db5ae4774e1. 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/QZNJX2372004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44f612d77118d4c91f74fc0c17da2a80e115fe8755161058efc976d056f2c47c. 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/QZNJY2323905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x496e878a2997a44f1a1cb68ecece8049a419701e560dac958a41c0b343dd54d9. 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/QZNJY2323906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1026f74d96d9bdcca6f5147fc35a077d129f6c21ee61fdd141cee2bc52b173b1. 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/QZNJY2323907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe301ecc7e29924f8322ccf964c6e0878e338eb70ff94595f7b93363e790aecf3. 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/QZNJY2323908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e451c8ee45bcfadf1a6ca81f318d03ad49f420f1d4b18fc43370721ed6f7547. 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/QZNJY2323909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x396a74f771224df3caecfb764fb66bc55e43df29152b68c4be3b0b3dd8e4a361. 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/QZNJY2323910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8788ebce64a4479711b2724f30e7534177cbb8f2e8efc4b5d299ada329b097c4. 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/QZNJY2323911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20447c358ac26baa869e3b5e7e012852d53a3cea60da237dae72f651a811e2cb. 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/QZNJY2323912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaa60eedad15c1bea9adf12c05ccbc5f62dadb9f41f9128411bf7563d5ba70e5. 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/QZNJY2323913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf25a1c944ab873fdad1a94875b05355d6b8b3d86f492ee1b93870a98880742df. 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/QZNJY2323914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0cea0cda7f3d30396b38929571fbf8e8f0fa2616afa8007ca85f1008b957b92. 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/QZNJY2323915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x292ea76e0e3231421558fdab3ba840298bebcc38a19ad343a65205344de98ca2. 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/QZNJY2323916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb701d591cec2ad595690830fca92ec6aad8617172b35104dee563bdaeca09b75. 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/QZNJY2323917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x405d10233bc0258b885d4d76c5d3c4bbe1cbf472eda92d373e43f3740011771c. 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/QZ5AB2447370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2672e0e046113cd0ba859d8eecf57cd776383c64cb8ea776a578180a750c54d9. 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/BKCMX2400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07c142df981f3dee42c2ab36980593db8b1e8c91ee876c016e9ac9c12778265a. 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/BKCMX2400038.
MTG - RALA XEREQUINHA NO COROA VS SOLTA A CARTA TIGRINHO
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe976c6682415d16117139d68b02c4af5a9a03de26a645b68d23ba8992bf1fef9. 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/BX4IU2421685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9ef93355482ac935aa1721850edab4c0d7f58a62d107f591b5f2b43121fdc30. 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/QZW9K2448769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2503c2d2d38d1a89717ff34c7304b7f4c5b4f8d2d8b80f38232051927ccb884c. 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/GXBAV2358307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6ca0b2b1eb44b164a2f0de0cf307e77791b28d2a87c44f6df26fe5cd787bcb7. 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/QZNJY2231274.