1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x75b8f9c341e5e901bf8dc64f52c0ba697c8d6ef3f96b60d7631bad1978c92ad4. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c5d1444e-9a3d-46ca-8e82-23e56db0bf41.json and https://artists.proofprofile.net/proofs/artist/c5d1444e-9a3d-46ca-8e82-23e56db0bf41.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 → block OTSBitcoinBlock must exist at that height 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 0x4f98372305c8378bfb17a8d61e296c0134034501ed97a3a18d369c04f05e8868. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/SEPQA0900375.
Butterflies And Elvis (Spotify Bonus Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a0fcf89b3ddac5f7c1ae0a4c0a82285be9252ab9d92f6cbdd19265b5b799138. 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/ISM100900101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5c8742c4342f742341a6ef85bb304f7cb9e70d2eb11971dbbf86bcb7f3e2be2. 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/ISM100900103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56213681797b113fb8af7e9990a500a63b1544f900674015a8aa6944c6d30221. 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/ISM100900104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64e385bcb2839495f018b70e4797747d1df97a9dc3f2264d977bc28ed2c20ea6. 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/ISM100900105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22ba9537635d9d57681114a839405fca3c644458f20bc146a092dec68ffcaf8d. 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/ISM100900106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4026db4bcea3e4b9d47f6c24937113f527878833d930f2c4d32378e8f6477c15. 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/ISM100900107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e7ef14e9c55f49ac713baeadbe54172bbadb771076132d07d1d89fcaf528e0c. 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/ISM100900108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9aef4b13a887691e4f44a77cc8e641c70c9d8dea4561fddf614b3ed002b1dac. 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/ISM100900109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44ef7eccd1134efadfeaca71209a3b2dde8e725d5614627dcd471cf42fa70bf2. 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/ISM100900110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e584880db8f8688027093b4ef437c6babb08268fc419d2daf3f516abcda6cea. 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/ISM100900111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x412943b2db8676824f8b01549e80c39c446e50edad84f6c07aadbccc7b8b1027. 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/ISM100900112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c865ce19f4e99072d70db57a64ef7ce0b3f4caa9e27dffe711aaff3c4fe19da. 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/ISM100900102.
Butterflies And Elvis (CDON Bonus Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a0fcf89b3ddac5f7c1ae0a4c0a82285be9252ab9d92f6cbdd19265b5b799138. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/ISM100900101.
Is It True? (Eurovision Iceland 2009 Orginal Remix)
Sumarstjornur (summer Stars of Iceland 2009)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x892563b8dd88fd56e380a04ba6970ee9d9d7fb545c4e88f030cec5726bc6a6d0. 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/TCAAR1081853.