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 0x15c8d50b0cd43f16e0fa112a696ef4319fba9c559290beb638a69f07e9eba2c9. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c8a320f9-4f71-4700-812e-bd01045d587e.json and https://artists.proofprofile.net/proofs/artist/c8a320f9-4f71-4700-812e-bd01045d587e.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 0xaf42c2a8074e1000e370498a1b94580b15c5eb1a0b02b040612697ac7e9b3e24. 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/GBKQU2322974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a6c6b907184479a339d284a239463b55cd7ddd5b43eee6666979ef88a1c8eaf. Chain 2 (Bitcoin): anchored in block 958130 (2026-07-15T11:24:48Z), 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/GBKQU2088953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe862075631768c8fac27ac4100203554436d7112094c400182649e1cb66b809d. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/DEHM81800615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7c18ff080210de024e1d1ac1c6635cece2138d7b083db42d53472cc75f5adf8. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/DEHM81800303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51f7c7247f916aa51684a26b2343cf14f1e4b81b04ad37cb2173d1897a94e3a5. 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/GBKQU2429163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x004c0fe4d2490a8f7888b4c82cc2876fcacfb49ff905e914b936a133862a05ea. 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/GBKQU2420129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e7823c24c574bd7ca4273773829c8bef117d20eeb4a2050b0cbe004790b8b69. 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/GBKQU2420130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d77fed19a47dac287208e54d96191bdd09a8f9121634001bc99e61df2afe3a0. 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/GBKQU2420131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08dbf8e4b91488aa8e633705b1ef4ad4907c7fcfd762917df8a73c977798368d. 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/GBLV62300292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d639c8c61a9d240b357586e8ad17181fd25154cc4232ab6c4a113a6359051f0. 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/GBLV62300293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03a8218856f7570fc0ff9293e61aa0ca2da4bde05f06c277c71ba10829aa81e9. 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/GBLV62309241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ca58170e72b8d14e5bdbf0ece2273c38108d6b20b23062a019b0d9497a60465. 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/GBKQU2472034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dd27eaff1d05d6febe054ea2938aae8215bbe95abddb4a0f819adea3834e84c. 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/GBKQU2446284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4eded48655236ebab65dda69a8937611dcb047f45b8fa81e316caee95355677. 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/GBKQU2408129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9c3fe5cc5e9683d71d1554c18d6f68a71c3561212409e1d99191db50aa5a4a9. 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/GBKQU2408130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8228617016b99ff2fcac933ec2e9ea4f4c9d466c4d32bdb0befe79f799e64bcd. 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/GBKQU2408131.
Funk You Very Much - Alberto Hernandez Re-Interpretation Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb079d319d8dc215283112a25d548b9df201125018dc2c0d7fdfc364618b4e418. 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/GBKQU2408132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f7e5cee51067be5f96d9d702378b436c062422f094a3b0484fa186b771958e5. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/GBLV62321042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dc33d480403d38f8c08dd2228efd4cf3e3555aba197ae0f49d24282124af86b. 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/GBLV62321043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2af728ac899ab3f44bf74b2b0c9ce9908848181447b01ad770e97465a29e0ea. 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/GBKQU2451797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd12bb3af0f50a0cde19ad026c0e23637f1c9d686daa4d607ccec1c5b70b2db85. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/GBLV62309242.
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 0x953962e8e536641da7e716370024ac56952469053458fa1aa8ed6f6d9ac3f43e. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/GBLV62309240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc50734891b9aed94efc25f872162f68e94022756f269771f366ccd4aaa9d7b8. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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/GBKQU2446285.