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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 0xbfbe8e86622b6737b958d7c92df55eb832fb256cf95353164b056999dcbd1934. 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/b7b4843d-2c51-497a-badf-fbedaa973d3a.json and https://artists.proofprofile.net/proofs/artist/b7b4843d-2c51-497a-badf-fbedaa973d3a.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 0x35faa11d84929189d690edb129594a5c34e6d19371ce34a7a97a4ce42cbfefac. 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/GBCVZ2300138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e9dd7592a941a684dfdf6c0999755996b20479885c03822226a8666ce0ed464. 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/GBCVZ2300140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x149961ea1b08d82753c45f6b3a9e7128a06967dc6c5b35d5bf447cd9f1c346ac. 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/GBCVZ2300141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21fcc8b977fe045e89a60beac97673abe92988c36f9dd45ac122c2981bc7a59b. 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/GBCVZ2300147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec8ed6ecd84a7acbda6243bfe33657e9873be44296393a510491a4a984913abc. 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/QZVEM2310349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aa3bd6ea289ff08044abea716ddeb2106029dcfa9502cc8a41a9965addaaf79. 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/QZVEM2307763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5fd5c8df2199f3c082168aeb6dfa4d242c7c12103a7b613dcefcf3335583d93. 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/GBCVZ2200074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45a3c45f9a1c7655afcba2e7b08c4f76328b6200cbbd3fade6ab22209be9b3e7. 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/GBCVZ2200075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dca9c7f46fb08aeb2b63c56dffe60d3f09a16161c868c44c288b7f4f08d8375. 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/GBCVZ2200077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6bf7298168398cdb1b56bd7a92d88902c00d3d4bd44d2536413673c29a4bd46. 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/GBCVZ2200081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5fcdd2ea4ab7db46766944c51c677d8b399f0caa2d8f18e395413518e5cdc82. 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/GBCVZ2200082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f4097b6aeb23038ac92c7a31eef394c5506c4638f9085bd60be845ec0deabb6. 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/GBCVZ2200084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e9dd7592a941a684dfdf6c0999755996b20479885c03822226a8666ce0ed464. 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/GBCVZ2300140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a67a2341087ef11df232f24d916950e4cf9cb52677707aa438136d4783151ee. 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/GBCVZ2100259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc10ee9c97aa15eacae70b75587c27d6d445c3d115bb387702ff8962c4fa86bd. 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/GBBPW2000065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde898c6dd6bfe5c190a52c3e8bf99e0b389006b2e5c3e30706dcd0b760bf3700. 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/GBBPW2000018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8838e8d349b4d37fbdebbcb9846841c56dff4e3f7e67f10f2fbabb76a43d911. 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/GBBPW2000066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cf32750625ed044ced1a12493128c27f6b2fa8f780dc6c5cb2ea04032fb831a. 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/GBBPW2000067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b751952fb3e231d26398f9c92d5e9272ed32af0948e1269a32ee4485686ba9b. 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/GBBPW2000068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde898c6dd6bfe5c190a52c3e8bf99e0b389006b2e5c3e30706dcd0b760bf3700. 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/GBBPW2000018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd5ca4841b2c6f799f3438e62e4b27e4017f58368c7eff42450603bbb1f80e4e. 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/UK3G31901401.
I Want Another Affair - Taylor Skye Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd4863a18ad8ba98a442ea5496c8143f0b181256dadf2be425b9c00563b1536d. 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/UK3G31901403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12aa32f535e2c297aca7d72490abb4ed655a5110ac1a4752b0c82073dded3a22. 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/UK3G31801301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38aab7d4f31c34962d3c4783a120195a83ef9eb4ccf3cadf728b7e443224c66d. 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/UK3G31801302.