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 0x48af76c8815f669541c8d05a882b75370304ebb713a933cd865250994e3231ab. 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/b752176b-18ae-41f0-a9b2-db2f0e314836.json and https://artists.proofprofile.net/proofs/artist/b752176b-18ae-41f0-a9b2-db2f0e314836.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 0x1bab99fa3da14e5f4fb029a3ba6b5ef56789270cd0897251475a21b15f17343d. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/GBJX32018017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c6b49dc15f71b0aa7b67dcb3db11a74e0ab0a1a777175813241afc35c0afd94. 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/GBJX32018018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b0ec9b5ad2df9521fdf707b22bbe807e726e08e46bbf3c5bbf19b93b257b009. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T04:41:49Z), 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/GBKQU2173279.
Search For Love (Return Of The Rave Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc81ac897fd18360f158e84ad2df7a5a24eeefdf2eb34693cd53fd7dc4d7a2afd. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/GX53U2054281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cbd0a10ec3235d3c39e67563a1d01e8858e87aa5a709f5108303e5602071ccf. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/GX53U2054283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f5eb35c342c43c6fb44cac23acb763f9f0f01f24c97b6bde791ec6b88c9be10. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/GBLFP2201098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa22211f81fbe0b2fcb9a206fc6671eb4bc989174547f65d6ed976268bf38df94. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/GBLFP2325780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23e941af1b816fec4b02862b40413cf0a6aa12f51540a75d10ff47047edecc8b. 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/GBCEN2500048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85b842a9b48a485e0b13be0a8b2fe0d1762acddbe463c7c8f8cb21b7b91c858f. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/GBCEN2500023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01527e9d426a5f3970742b1f4e0151a0834bfe9a708af09c42a411eaa7fbc322. 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/GBEWA2206190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a0147702c885dffe105e90f2f28ceb7398200c2917c6288bb2eaf52e3d75e3d. 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/GBEWA2206191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bb3fdecc2c90093bc777362065cd0e3efadb93319a1975aaecc79eae3d6111e. 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/CA5KR2437056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1ec441c83af8bddad4f65ad88bade3bd4791dabeaa84c9ec499d566c7d0fabe. 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/NLF712500101.
ASOT 1208 - A State of Trance Episode 1208 [Including Live at Ultra Europe 2019 (Highlights)]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2b30e10951dd17ae39d42767be53d3d8c5bd40a895f2426de8d98c8ad06937a. 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/NLF712500420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f7583d5102af1de2ca4fb12bba2ee17b0e7e9a9395aead3a3b07555d6b49c58. 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/BE5KW2400494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01527e9d426a5f3970742b1f4e0151a0834bfe9a708af09c42a411eaa7fbc322. 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/GBEWA2206190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63ef892d55648af33b4a67dd8368941015d8de18aa46c3d30173fb74ac7ef45d. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/GBEWA2207222.
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 0x60f6ff6e907f8f154503cfb3b05d27b53cff0d25738e0bdc48d6be4fbfce544a. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/GBEWA2207136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f1765234bfcd700f217639fab3dfb7f265012f8c42815a203fa91945872a848. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/GBEWA2207758.