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 0x55cb269c1b544923f8ed951e1db14b9365a9df4075613bcfcf663922fa41db9a. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9c9fc19d-96ea-4360-ae8b-0c1318e4dba4.json and https://artists.proofprofile.net/proofs/artist/9c9fc19d-96ea-4360-ae8b-0c1318e4dba4.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 0x20d3fd2d6fd7fd0e3cbef49c8aefeb2b4559b0a49f5a2b2c2b1035e52075c7c2. 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/QZK6Q2355708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a40b7ed9532be13ee607e29ad6922933e85a26a3cc70e5205aeb69dc2a20912. 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/QMFMF2311064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1347f5e47cb27ff4a142a20ba1775ccbebdc31cfbdaf3f0640c474794c99a8a6. 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/USUYG1270931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfce1eb9e223b4ffd936ff14b266d8ddd6ae96e4fe4520fd312d0c1cebfc45e08. 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/TCACX1731490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0be5276d612c54b56047086dd9ece7fc44df563695c663af1fd31f3b650676f2. 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/TCACQ1634065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a73140a998a918e8ac3e6f50c2ca119211bc0d670065b5c11f80427d9932503. 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/TCABS1353838.
Don't Quit (Smoking and Shit) [feat. Alex Wiley]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbca98cb438ff4ccdb5ac04ec700df38ee2b6f044e6a9356eb27dc6d034cb56c5. 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/TCABS1353846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19e04ed8eb17af3d2bd52d365798db4b30c876755b4aa80f01e22288681ac9a2. 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/QMFME2310084.
Kembe X "On The Radar" Freestyle (CALIFORNIA LOVE CYPHER)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78018ed11c3a1badd48cf416a562f13eff9c1967ffd1025a00551f333b418b26. 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/QZNWZ2298139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe08c5f42f1600bdf376be680f9aaebdc4dfd5b1958b590721070fe9aa6cc47a. 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/QZTAX2237534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9e07b729dedd8af0faed84063702e44b885829ed5b240d0a524687bf5947059. 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/QZDA42262433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8c189ce8f189ba707b49241609889820a0a0c79a809cf351ee45f25eadd836e. 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/QZTAS2153959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd75a25d26690f30be57e1029164c55775f81fc3adcca4fd1ce299d7f66f0c5cc. 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/QZNWW2125548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc161add25e79ee801619194e322a94c5ad4f1112594a47e03da82d4261414c2. 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/QZK6Q2170117.
Under Pressure (The Smoking Peanut) [feat. Rexx Life Raj]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6937ef67fdb18f06f6734c027d1b69617a268814449399a01eb1ce5006deec2a. 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/QZNWT2089835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1f0c23a99943aaf25097d82b66b325bd4997f04439de3aa59127bf4218eaf6b. 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/QZNWR2004766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4da9cad03cb56a7156a05a998f02ab76cc06391e0c9eb7b957c732a21314442. 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/QZK6F2007469.
Raised A Fool (feat. Jay Rock, Ab-Soul & Zacari)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cafaff324403e90d9a276d35e49eac49a3d3b0e735e2db45cb610710293309a. 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/USUYG1257895.