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 0xe556bea1fa154225cb6c81c5b901fe7e65162d0d006b24960baae3206951e746. 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/875f04ea-e6ae-41ac-8fda-844c8723e6e5.json and https://artists.proofprofile.net/proofs/artist/875f04ea-e6ae-41ac-8fda-844c8723e6e5.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 0x819cbc628d6341a9c582be2b62692d69baa5457234de9b4a11c402b6a886f8ff. 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/BX16L2300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf475254e5c508704496501297a53f9869e20554eeb5e8a5bcdb8b6c3a8ea28dd. 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/BX16L2300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40c8078a261bfeccaaffccebc72e7b5d0a0cf0ce2812f05a672fe2255db622c5. 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/BX16L2300015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67aa37aafa6d7f3f09291ed7a65351fa1e7bcb431ea3dc1f7d2facf4e132b36b. 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/BX16L2300016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a71e7bffadf548a8e324f6ae71bdc3e47cf0ce551d4f1e2eb4bdd8e0d4d2c7e. 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/BX16L2300017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a99fd3d8790a10154de4485a7ac01eb9faff56f376453cf6d60abed6592059a. 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/BX16L2300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x749679ad904777cc4b9ac8df3fc9a3c054803e4156a9f0ffc6b6ed8b45f38208. 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/BX16L2300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41f2da0994e6eaed173e23e37abd2427b313892a3951bc1740e5d1d833ba9aa1. 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/BX16L2000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd64dff3b174fa77afe38ac2fac4b7598779d885ad641c84c8f4b9df13578159. 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/BX16L2100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cf1e6a94c0bd38586f4470d113f22b54d432679f212343bdc4072dda2a6897c. 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/BX16L2100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b9eb5af925cf0d6bc444714f84b4f3d60b1874b8d0efb4dcf7f83bfa7b0821d. 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/BX16L2100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a171ade017cb66e7c44494ea2d4d4b0e2920c676134c44676ad4257bc76f686. 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/BR9Z22300157.
Emoji de Fogo (Danny Bond & Cyberkills Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfc32d4c66da5cab5edf0d47f3b9839f5ec01b01cea50340f37bdead74c3782a. 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/BX16L2200004.
TOKYO (Pabllo Vittar & CyberKills Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13a8b75f4285c9826a8117da3d6ebcc9abf8bd9d43a24ebfb3224c7640e27f3f. 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/BX16L2200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41f2da0994e6eaed173e23e37abd2427b313892a3951bc1740e5d1d833ba9aa1. 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/BX16L2000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x764750458d8afc3dee4d58d53cc3b2aca8f7620ac30ed12d483b82428a296b96. 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/BX16L2000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2baf772930a496e238b136412bb6f31abf7778656aea9c89c6e27187e6207551. 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/BX16L1900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ac61245e850b64f77f1555becde5d23fac2c08c667351f0ca8c5971e4969845. 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/BXJHH2100035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01364b0d1b99fc3203008a3ecefd47e24abcba7cb29fa7526f439006105664de. 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/US3DF2252152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8204e13c18e6221b6c1a3c0fecd2f88273016b7a5147e888a8ee146de561785. 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/US3DF2252207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d7d45f2cc779cf1e002ba76c25b461c89cea61b65b9d36fda5b46691b5deebf. 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/BXJHH2200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b003a1604b926f281d6309dfa6a94fb798f631a4a30144494a09e60961a2dc8. 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/US3DF2252380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53d252b509cf9e6fc04aa9b3fb94ffad2b605d7722cb8e1712270af70d439f57. 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/BXD8J2100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5661900bf3d71bbe36a58daf5641cec42c2da89f608074e50ea53f319bf097d. 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/US3DF2252395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25521a64de8e7eec0ce5abcde0998c1462ec382abfea9bcdad46029cbebe929f. 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/US3DF2252398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe9847760bcd025104408d24d9d9b79c2d2655da7ba7918d9b0e3c3fb654a40a. 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/QZNJV2321182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7808ee75c89b10a8f139aaf8f37d48925af04b5de1ed713b69b318c1c73428e. 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/BRTRB2201468.
ASTROBOY (Irmãs de Pau & CyberKills RMX)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aabfb135689f1dc8baf149f3be71492016b923d59ccce59ffc57b9c42556661. 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/BX16L2400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x001ad0dbf0cb43575ba9a9b9d9940b4832033f8a06868026367a6204abf42d3e. 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/BX16L2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a171ade017cb66e7c44494ea2d4d4b0e2920c676134c44676ad4257bc76f686. 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/BR9Z22300157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b0201632b5ace38601c63eb66e8626dfe907f277e36564a7a88cf5d185bb1c4. 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/BX9ZT2300295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37d4921a3742aed888bec4510575f4b485bc50a132024596764f1bac8b0bfea4. 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/BX9ZT2300300.