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 0xd0074d2d954a289403af10f0582f7cd6024e54ad7f1b3d014099d03267c9abc6. Chain 2 (Bitcoin): anchored in block 953701 (2026-06-14T22:16:40Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/77424d4b-fb6e-4e2d-8d5e-4eae16c7caa7.json and https://artists.proofprofile.net/proofs/artist/77424d4b-fb6e-4e2d-8d5e-4eae16c7caa7.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 0x080dd426c5323ce2b7bcdd057ac669eee2c16edd9a3923c4bc7469a9fb2aec56. 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/BREMI6300033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b0f072225806e632a054bac575371cf681d4708affaa44c365519c6c1996960. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BREMI7500997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x814e86f3c7ca957291037f77df1a396982a34b526dd6b2331df0b8bbb0e6e63a. 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/BRSGL7400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2318f0b28f9561fad69f11ddd3d02c89f9bbb94085e8a20aebdf3b637b39a952. 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/BREMI0300411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd33a85909bb1ee94a2f4130936f96b21c41d437ff96c358c658489671b1c180a. 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/BREMI0300413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bf74c43ed04619fddeb4aea2529a5a22524b107d03c1f5b822c8fb33aea657f. 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/BREMI6500110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe16ec26e1f948191d932d0e16ba4a7b09f27b79b4868bc5ee0267fcccf90b2b. 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/BREMI7200506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03f3e7baed21a540e8f8e4a4b6cb9f476af89c535b7acbea29359efce67f7430. 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/JPBOS0000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab679b37a2ea509c0faa38732029ffa9b1f0db375d331a3e9d6ebf5bf7663eba. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/BRAMD0001887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91d4c53c1a42ed779e10c5da0eeba12622d57f48696f74ddead72d33d660b540. 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/BRDEP0200106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5dce442d53af60eb27b6d9893b5084e57128b3a04b22a4670efc4dff4dd6436. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BRDEP0100075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6441e0e2a4821a49f18f40ba894d02d4dd316dd1538da352738fcddd630d24ba. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BRDEP0000091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2997b5af9186a2d34741399b913244df856fb7172f0426ecd93f5a719f95f4b0. 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/BRDEP0400513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12726f7352f98f4e35a75df7a7d1153b3e4a288eebec86db17de2427c8ab1283. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/JPQCY0000012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x367955c49f2e4a289e7d91445ce203b444c196f94acfe53f5faf011265c2a5db. 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/AUXN22142716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6441e0e2a4821a49f18f40ba894d02d4dd316dd1538da352738fcddd630d24ba. 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/BRDEP0000091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3886db5e9907ecf65368b9f5ac80e7c5058359c3e80b51c92f973dd44f78a93. 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/BRDEP0000093.
Se É Tarde Me Perdoa / Pra Machucar o Meu Coração / Palpite Infeliz
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3364efcd37787d8d01161d463fa4a691512aa0ab1ecdfb259cafe50dd87a9b24. 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/BRDEP0000094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x134e1ce50723da1bf8fa363ab84e99881196a9a19a583d707575caa44bacb3a2. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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/BRDEP0000095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf1935c23388520a33a62d92b34b2daffaed0f20da11ab46b5b1c71ba2a51be2. 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/BRDEP0000100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bec35a962c5f51815b024703167e338d963bdbd1be14452266b8982a87c1037. 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/BRDEP0000101.
Two Kites / Fotografia / Eu Preciso de Você
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x476ee05bf5a2aac366eaf3f89623aed74f33a79c70838d7e02b042205752d170. 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/BRDEP0000104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x446e6bcce9d59c7e7407dc468f7aebdd47d5ea710ca7b47676b0975feabb1523. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BREMI7700066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b9af7aa8fdb3562b55eaff271b3bb61d460740caa576e48e15609ae3f828699. 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/BREMI7100025.