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 0x26fd4a6d3c2793de439b6441f60bb92d3fffea0767e8746d481ecfe25a9abd9a. 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/eb6e2c1f-a4e0-4b74-8d4d-ea36896c261b.json and https://artists.proofprofile.net/proofs/artist/eb6e2c1f-a4e0-4b74-8d4d-ea36896c261b.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 0xd3e5dfe9b39ff68880184c94c39e3a52ec933aebd3f2edd57e82acea47294851. 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/ROHOD2300021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x113f6cc555e74d96358bba7695ba6b2cfeb3c331d934e622ffa1ea5c1d0eab90. 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/ROROT2402240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2b9e8982d39148037dac1281a19aa7808199b57f8a42439280e79b0be47881f. 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/ROHOD2400041.
Poate Asa Te Uit - Live, Protevelion 2024
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ade5bb3bac9828bf309ba370775fea190f4830b01c0563598fffd24b06e46c2. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T14:55:04Z), 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/RODRA2400028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x092bf30e7ba3b810143502e938bd77a4016e1bdc0031dfb054c1ec8ea0e03c57. 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/RODRA2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22695cda46641772b978f6b0f2ae5ce13aa3982408f9cc9988ae16a9a2e3813d. 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/ROHPA2300249.
Lasa-ma Sa Te... (DJ Giany Festival Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf023716693736f6c5c997c66522ab1bf5c62087b125e1becce0e438121856c02. 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/FRX762333539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ef778cabc8efe1fbc7aba6e9857ed5fe3a25da55981d12a9fd76206b495b81a. 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/FRX452331261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3a6b1f27807032769e41faf057e39ec0270c19dd451dac3d3c580a7199c001a. 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/ROHPA2300087.
Lasa-ma Sa Te... (Adrian Funk x Adrian Saguna Remix)
Lasa-ma Sa Te... - Adrian Funk x Adrian Saguna Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb47f2944b874855954c3d74af97184f43449a99a60413903a1958e62c1698bea. 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/FRX282361588.
Lasa-ma Sa Te... (Deejay Killer & Koss Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd33b3935d2dbd9d239e1ea899d57ad5d28848aaed498286b0f2b487318ae7ccc. 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/FRX282308308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ad0b83f502d14aa333c0efe236310f8b87c7a90e8bd0ff9c9be711fff8bda3c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FRX282308368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4364adf7db9acc8c588ac31599f173a53568cf6d3fbcea85830ffe88087b983. 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/FRX202376835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd8fd09949681bfe71cef0865cae2f9114fac559f77ef2bc0e3546fcfc2b485f. 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/ROHPA2200402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2a22ff60df309461c8bd7e639454dcf1a39e0a13832943e59ab416ae0bd5bd1. 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/ROHPA2200269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b7aafb24ef3d7c64ee48fecc58c6634759bec2e165b9e60d782a3c7edc2890f. 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/ROHPA2200111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9df802cd4c437b8aa7d9996dce0fd64649703f185bff5bf4db8976656242afe7. 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/ROHPA2200108.
Doua inimi (Cristi Nitzu & AQQUANOX Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d1ec6828cd601bf572d90cd7b7b8cee0f5249350dd1f74e8a3af8b36d50eba2. 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/ROHPA2103969.
Doua inimi (Sloupi & DJ Jonnessey Remix)
Doua inimi - Sloupi & DJ Jonnessey Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf61a53c56f2d3caeaef36461013267b530869f5411a636d3e8322177cac6d4ec. 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/ROHPA2103764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04c68f3f1576536417c247d6fa40c6fe698858b671196dfeabb26b1e46f249cc. 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/ROHPA2103532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81b03b86333bd6ebf84fcf21ed417061789c953798a067f12694743570371e0f. 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/FR96X2192558.
Proiectul Balkanic - Magdalena, Ema, Am Iubit O Ardeleanca (Live Session)
Proiectul Balkanic - Magdalena, Ema, Am Iubit O Ardeleanca - Live Session
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x298b3938c9c64ee0a1f29d1df349adf155640024432d138a756eb7d987c5c84c. 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/DGA072189028.
Proiectul Balkanic - La Carciuma De La Drum, Mama Mea E Florareasa, Sharaiman (Live Session)
Proiectul Balkanic - La Carciuma De La Drum, Mama Mea E Florareasa, Sharaiman - Live Session
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad184791434fee9d6da1853859531afea906fc103d4d03c36492ca105a096f9b. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T19:53:27Z), 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/DGA072189026.
Proiectul Balkanic - Cu-O Damigeana Si-Un Pahar (Live Session)
Proiectul Balkanic - Cu-O Damigeana Si-Un Pahar - Live Session
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf21e4a91b89cc2f23600c8d68f2e529fd05abca4498a341262659f6bb8a2e925. 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/DGA072189027.
Proiectul Balkanic - Ileana, Ileana (Live Session)
Proiectul Balkanic - Ileana, Ileana - Live Session
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd66a68ea7b5dd664af99e455e2ea0c61b7c5a5af28622978632be0b77c960033. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T15:40:16Z), 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/DGA072189039.
Proiectul Balkanic - Constantine, Constantine (Live Session)
Proiectul Balkanic - Constantine, Constantine - Live Session
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x167e0bf76e5709ec6ba85a837dd5437e9266fb267250e9d6700b887022a0884b. 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/DGA072189045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3049d7358df6d427be7977507cef2d5ea85d10f33c6c7276f65f58573eb5759a. 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/FR96X2070077.