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 0x0eda81dc688812e9b31b308295f38d9c1ac0629c6cfdc0d24115ec7652930d55. 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/2c3b6518-8971-4565-a35e-5baecbcef321.json and https://artists.proofprofile.net/proofs/artist/2c3b6518-8971-4565-a35e-5baecbcef321.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 0x08244cd37cc97b77f9c74822f434b503c74c3b0c0318c5c3c250ec6d4105165c. 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/BX7272200183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b22a4157f3d0c6018526cfa3cb8a6c508f682b3f20bfc9d1a34bd7c8ede56ea. 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/BX7272200184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9821d6a2685bbab3f0ea16c0310b7b31353d5ced75f8fb065d8ce36d84d5fd9e. 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/BX7272200185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a612f9520f07af3bb60ee3d8d9fc8147b2fd6b8942d0c1f8be38564f49782dc. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/BX7272200186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x059b431eb22008ceb02a844112f7478c0fb6798c7fe811b940087abc1e2306ee. 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/BX7272200187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90abdcc7f6793e6418ad1d9dcfa3a55ed39e01f1002a5a9f11090a4e282774ba. 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/BX7272200188.
Achei Que Era Pagode ( Remix Arrochadeira )
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffdb908479cbf6aafd667c7f493000b37d6b5a01a9385cd25846e63ff8966c25. 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/BKF442400137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57103a30d0150a057e732a41552a6af68177809455c2d9446219be0a8f2b41e3. 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/BRWCV2200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x099e9b752cde2504651c80aa374fdd80b267afba872906b256f2a7fa301b4d65. 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/SGB502231920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x716330c8175998b509c785ad3c2fc85a0edfcaea85cd6b4518bca8be157bda39. 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/BKF442400142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b61ed7fc08d144bc995c5207a8ec1ffa777148864fd9aa58e6bb2fee1150f53. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/BCAPW2400395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2409c8b46cd4446a7bc81efb3dd4a47e6fc6b6fde5e444062fadab2b6f48e785. 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/BCAPW2400398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dc21c794e0a7486ee9afb74874c210ddd5ff6f4edf3aae52d0ae86f2764f97f. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/BCAPW2400405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fe42923a3124e1b628e753a95c76067b20792c797daf02afe90e39d9424f4be. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/BCAPW2400414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e10b725fd3d50817742ff0626fad47791af76e3652259f21fefadbe3c8f9945. 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/QZMZ92107193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x178f0c89a46cd6c4af517944e8d30c0d615d594737dbc8e553f3804667a1d4a2. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ESA012480488.