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 0x41c7a4b7fd95aa22fd7bf51de59ecc2b55fc439e297bb75c471cdbb79ffe961e. 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/64be3888-8812-4f56-af66-f84ce45792db.json and https://artists.proofprofile.net/proofs/artist/64be3888-8812-4f56-af66-f84ce45792db.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 0x9c5248bdcdb673851bcec4e7642a3224c425673b470b7153be721e8806b2fade. 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/TCADJ1737746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73865cb322193257e60d1785878ba49eeaa33f61869557186d9d02ef54534f28. 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/TCADJ1742078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc378e0d1447b3f5e4f3f15e27f090c0c8b63d911105cc1c04e391c1b9ae626e. 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/TCADJ1742092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77f65060cabb1ed7e49f1991390cd3350da69d9cf7b40e98df1a4e57b1e7d3c6. 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/QZNJV2187029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf94dce40042d57567ceef9e9ccf035104a42ec82670a4c3842290dcd2ab58d29. 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/QZNJV2187030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9c06a613653de06f38a577de40b5d1844fbff24b84a7a4f57a7a9f5d3c0b770. 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/QZNJV2187031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4545b7c9ac2a6dbc5274af46f754ba157adc5273e46840a0dc59f82849642ad1. 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/QZNJV2187032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7598a33190945f64963113844fc17d960d4f669ed3e8df9193b0db00f9b268a4. 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/QZNJV2187033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c05fa170b224ca438a645910ecce01c26556234f4eae85be83b79cad0888ad9. 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/QZNJV2187034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9811f1f084f5f7b296502a419c7b8fab3113a657887003915ee31d101b86953c. 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/QZNJV2187036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91b3f13543b228a08e6d2046631f41167680c5df9bce8b40b1a12a4f962769fe. 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/QZNJV2187037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ee386db820df03353207178070d5f03ff1b0791a1d4ae927845f650d2bcb8ab. 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/QZNJV2187038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38d476ccc35c6dd1edd315245ae6e38f4dade8d91a9e4c422e980d0c70f81942. 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/DEQ121641539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e119a5eb75e6c5a9ea464be362915aac1b8f0c1217e4ee195a73946de31020b. 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/DEQ121641540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34d1112c42184e92dc8daf1061962432156656d373a1c77b1895d86e8f2d66e8. 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/DEQ121641541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2c20517d6e7892643d0f2683eadfb94737533a20aba91a3063812d2736d0017. 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/DEQ121641542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b6383a4b58ccac4e22c3ed6a5b4bd05426581f33e7c04263abed623189c395f. 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/DEQ121641543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x932f52fe96f1ae17983a9c64a8e46ac4798fc6a97f287bb857b241e897ca9232. 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/DEQ121641544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75ab1b97989cdb6be070777b563cdebfa24186b570712d04d2f68dc100e9e455. 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/DEQ121641545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8203e8187f1ca9beaa3f0f3db54c1cd4ca56235a17be7c1556d5786bf3e3c676. 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/DEQ121641546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c6c21de84009572ac565d355214b7723ddc15e4e4838fec9b26c074ee3f7f78. 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/DEQ121641547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4584b08a90f7958997e8e756a771f34981bbe62d5f1aba2b86bc99e210f4223e. 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/DEQ121641550.
Interesada - Amante (Tema Mix Disimulado)