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 0x201edfec9e0da8009007d4308180774a09a47dac55c60161a07b46e32bd8da09. 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/8e7e205a-41a2-4cdf-9657-088d6e22a142.json and https://artists.proofprofile.net/proofs/artist/8e7e205a-41a2-4cdf-9657-088d6e22a142.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 0xda0f4b25707f5abe5237870a06e5316e8731231f3469c51492222539c44291fe. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/PLC061504431.
Nie wiem (prod. Lodafrench) [Radio Edit]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad137c03b4c266fe1880e59e743b4e2c78b755d2bc7c64aa44333d297191dacd. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/UST8K1617488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76735597d7a2989c2ca6e9f74d357f73a55d188e324329ae42125930c263c6eb. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/QZ4JJ1687033.
Kim Ty Jesteś? (prod. Vznare & Young Lepa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd76bb5cbefce2b55addeb1ccd13b107899666839c4181b649ef3e59d3f9f2b3d. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/PLC061706264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b1124d7b639eab0438aa9213e8a53deed0522ccc71641eb7c5e1e33d3e2f69d. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/PLC061807276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cca50d71f807c9e3198ee3ce3f68760c31c6ec0e2e0140c1b1c3824dade286d. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/PLC061908718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9e277b19174709eb9f85b427ea276ededd3ac948fcbd0d258030a8060c6ab2d. 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/PLC062242808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa162d0ed97a6a5d22781dd31e4e71cf3a1230577969ebd2543c4ba243df594a0. 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/PLC062400645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeacff8e2e578e4cba2b9ab6059439c528e68376c9d042f894a2affe8c737c38f. 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/PL2DY2200062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ab88e35d0874b13ab6dd5ec3009f20f8efbf3cec9e8e0428a019bde5d46ad3f. 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/PLS281900451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b3053897ae12ed2e7da4a46f076379b848db933f8df325c8dc38ca1974527d2. 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/PLB381800409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94f1178cab679c649259bb98d396257edecb7ef6e620a8723b5d5f1dd377784a. 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/PLS281800421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe86d40c710d8d68106d33589e1a4b435b2b6b8c80548252298d3c54f2efe4670. 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/PLS281800408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc71e3bf41b268f130218d51f4ad735732f1c32b602709e1cb406bdbdf6871cad. 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/PLB382400856.