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 0x2579762554730cbe0c0861d4e8ab38a0abf98b9acba2a6ed4d1f48d65f3b2077. 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/82b50576-be81-459e-b7c7-cf7269379a67.json and https://artists.proofprofile.net/proofs/artist/82b50576-be81-459e-b7c7-cf7269379a67.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 0x525f784671c959c9de193e381415b2db80b2122e26a1dff9092a6290e778dd1b. 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/BRNUL2100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa605bac56855dc51158c086b566992c98b852a03b3a378ac4ffef6fa6361d86d. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/BRNUL2100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35ec647bf07d1603fc0be482781332ad4beb62c6645594cd857528a4bfad558f. 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/BRNUL2100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf77e768a1415272bec744cb07abc5075ca8285ff8c936f4a7101a968b4a3b81. 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/BXSEC1700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6d26aa4547b37855c5c67e8a3c62907db1fd816674823158a8ff1657d546b45. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/BXSEC1700004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9cdd7985d2e05ca166003a57d00a82d727fe42dea8375bfe0fff2c5909a98db. 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/BXSEC1700005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x908e19693bcbdd34db7310c44943e9afdc0a4773a17d62506d8ab24bc1beae95. 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/BRNUL1100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf77e768a1415272bec744cb07abc5075ca8285ff8c936f4a7101a968b4a3b81. 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/BXSEC1700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbc0b551ad57675ca43c69fab15cad92ceed262a40cd6d2fbe0cf5c42c7cf5a9. 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/BRE251000028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x750436e55c230a680c8efd88e6a4b1428f2080c801b0ac8eb58d8be2a512d855. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/BRE251000019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bc142a5bf16591f33641cbebefec472742884d86bb8b6dcaa1eca144b96a6e9. 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/BRKSO1500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92b1b4c0ebee8fa4478f11c6b910b44ccaf8bfd39b57562cf326d491b5270afb. 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/BRKSO1500012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c2c2ae80f0243ab2b1e5965e9b42c15ff3b7194d70ea1d46e68adbbc5f3d81d. 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/BRKSO1500009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39b01ddfd8d9684c9c8a8edaf9c698d1a3d04adce4b491b1fa791596e5f7c084. 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/BRKSO1500010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba569f3c74e82d92399dd2356908511924270a28c3c8f1c32d2196bcd5892509. 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/BRKSO1500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7a337fd403bd972c1f1ca3fe123c73ae61c53469eca9e5272fed011a58d70fd. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:39:13Z), 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/BRKSO1500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37af335dc162433a2f790c4a22536f18294edb71aed2aa3d4671dcf07b815d71. 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/GBCKG1300120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x804ad351d6431ec22b002a7be178af8f5dc39fe6abbfa8d96ac55ff7078179da. 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/BRB980900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69219ab6bf564214a78414af0c35ba011f7e219e2f2dc4a67badd4aff118ab9d. 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/BRNUL0800008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0616b7c0880815a79181272a617377c24bec89c776184e2a20ba3e92202fa177. 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/BRE7P0900008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44a2a6f51043decc6890381cb7805f77bf1f0e421c2cbc47c4034506ffb711f9. 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/GBCKG1300121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x287feef0f3d99216215599a3dc27d22e0a6abe38705094f3b6d954a89af50958. 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/BRAF01200059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c8f5d407b0e68fd142b09fa80b2baa5ca67f025178ab355f511bd4d2e9d2f20. 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/BRNUL0800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5cce92b881d2394bddcf8856caafc8fc3124cf74bc1d24b1265d1f9a37b369b. 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/BRQQL1000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16c2f667bf4a8e8023a975b9412f9c55ad8db35134ce1609faadcfa90a0d273b. 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/BRQQL1000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe06bb381c4900077334064d6a049177d2b44ea60ef7912623cabbe41c1e7eb8c. 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/BRQQL1000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c250ad3d52fafc9aceec5cce7a09bd697c30632521c57ecc7b138b7991d7d24. 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/BRQQL1000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x703773c2021b1a016af9665340f029749546228ea339309f99e344d09d15549c. 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/BRQQL1000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfc324e958b26867f2bf20ba87fea3b367eee1a3dc088f73a3cd016440fc3a4c. 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/BRQQL1000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x621355341adce66a1da0b7d6871a490af5dc1515d1d2729baea4d7afe7587c01. 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/BRQQL1000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11d76adb333df10c36a9c0c2bcf4293a9fa74a0bbddb5fea1274f93f86b8e3e6. 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/BRQQL1000010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1d57c595f7fdc36e582386f7a932a8f6487b18b5874a5254f1e6e1dc12747df. 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/BRQQL1000011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0494584dcc6325ea0286baa500bcfaef92a06e8929dca74d8f0e2fe932e9a8b0. 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/BRQQL1000013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25e8b1b83939d856dde02f05068421a130294e1f54994f6642bc8fde089158de. 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/BRQQL1000014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a1a02c8a48ee8e2287f02bfaf8b82fbf7471c6cbfd0aa424c5591bce788e62e. 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/BRQQL1000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82c87a2aec4e693986b311ce25af184e6e5940a7d6df8fb736e48a576a4540c4. 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/BRQQL1000015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf9d011499337d258d1c22404f0ee95f890135738b58a372cbcfe1f1436467aa. 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/BRQQL1000012.
Festa Profana/Sonhar Não Custa Nada! Ou Quase Nada...
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7727b82d4cf9cc89d71a71ab87762935e999115e2f562f6751dc3227c2d49364. 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/BRQQL1000016.
Não Quero Dinheiro (Só Quero Amar)/O Descobridor dos Sete Mares
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x005bb2aebf32fab51d2e8503a0a38d18388fd7aa8962239425cac53b9a1d6132. 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/BRQQL1000017.