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 0x9ebed61912dad0b2db78a08023542726d3231b03f09371def65148ccc1ae077b. 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/a81b96fe-b6ac-4275-882c-98e53ae8e2f9.json and https://artists.proofprofile.net/proofs/artist/a81b96fe-b6ac-4275-882c-98e53ae8e2f9.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 0x77e35ac8920f533c02aa7d1bce27d38f4043ff7062eed801ec223326bb695778. 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/QZTPX2114961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5536ee4efa3f6df5f4797b833c79dc329fcad678892efdc4acabe0743fd1f557. 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/BKP5A2400143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacc6864053568c98d9c39fbc9cd5c8ae6f66c2fadf6dab6240e7cc2e00c738aa. 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/BKP5A2400180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30c936879527d755f32c12f60c1cbc01f7848cbbec3f7d75c804ad3edbe2e17f. 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/BKP5A2400151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17431f9deb66abf3d0e8d9d403dd3f208e66bdc51bf302b7f5298241abd00fef. 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/GBMA22338643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bef2415052fcd6342dd89d23d08558714e75767000b922c58610577bd839d30. 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/BC96H2300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e5974222605368245651cc8cc42e3b0d6d90cad25036a0a73912d7440e4bef6. 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/QZTPX2247780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c960e073571ef0dff667bc9ef89ba41f2d4c8c8cb7d22a9710833c060f10b4f. 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/BCXLZ2200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecc448121b0c9c0fbe2f626c6a874154a96548f107db1f0653ba4a5c3b87f9e1. 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/QZGLM2288529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3b474f49fb2a531c349c9c54f8ef88eb53c9d82491f6ce2303d6a228cda447e. 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/US3DF2204424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2352b0a65b03296387d4bc2cbf667c36606b2064131958258ded22fdcbfeffff. 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/GX3Q92192843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf317997c09ef764cea1300f8a7572d6fbdac04f59c1ff1be7b32c3e3262d49fa. 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/GBMA22197396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x116b0f4b0b1aea22b02363d4467604626329192e11d91e945ee9f45c10aa395f. 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/USL4Q2084583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd67ca9a648714c4e3a34de07e59650096f26697737bc89c57873480cfcfb7309. 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/GBWUL2203646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42be0641a287d8b24fadf443a8bd0ae7dfd9c1f95b5109e464f7d249db432ccc. 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/GBWUL2203649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d1883ce715a1f1293ec81347abb34d47d321ef6528469dfcaa39fcf6ea30b24. 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/GBWUL2203651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d66fdbaced18c57f88b450fa00119ea69e2adabc7c3ae04c2f6ee1c4bc4d038. 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/GBWUL2203653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3139b541953fee198ed50fb829c4af096581901c6a5d63c4101d1268ef5b2e54. 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/BC2GV2300062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b722cb8deff18af5f7c6b57d70560ff0d8310a09fe9b5ef0a014cd73b28663a. 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/BC2GV2300068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7d20f3037d6aec04d879b748cd15ea38aacfa2bd5dfd9fafda07b81aa8f18b2. 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/BC2GV2300064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a17349eae2ce130d1d51e0a61b18df8ba2ad40887d00f257ed18039d2ba09d2. 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/BC2GV2300060.
Eu Vou Dançando Sem Você, Danço Sem Você (Remix)