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 0xf2d240d60d91261f6ed12417326d67c1dc9cb3462bac6c17a42628e613513fc3. 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/8e936171-90c3-4505-90e8-ba2a9bf6cb09.json and https://artists.proofprofile.net/proofs/artist/8e936171-90c3-4505-90e8-ba2a9bf6cb09.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 0xf151c0b641757da35c78d787a3d53a5fbfe0b2fcea000b7f5e1905f3e676d481. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-17T02:51:57Z), 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/ZB88P2100001.
ICARD (feat. Mpho Spizzy, Young Stunna & HouseXcape)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95084d45f458f738a8b1ce2096469e9baf8763ff537c6f83eab903d1ee750d78. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:04:11Z), 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/ZB88P2200223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf124e5509757c6d11cb99995efa5b708b6dfafa05fa515f3cd643839e81a5c5d. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ZB88P2200224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bdb742055f00c982b2f6a677877bb64906dc4f674e94ef9ba11c450d10a1e74. Chain 2 (Bitcoin): anchored in block 957834 (2026-07-13T09:42:16Z), 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/ZB88P2200222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x559f96b5b46ef20875a685462edca6c8eb63c615d00f9ab26101113df4674f05. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/ZB88P2200221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b879292c54c44f86c314903662459c81f66fbe71f943f6f9f9525d55c6a3cb5. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/ZB88P2200230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40609fb9b899d1fd098909f72048d08b35fbb09879d3501d5351be3ea8baa0d1. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/NL4CP2413793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6007a0f19d385ebe962d6b23e6b140bf45f5cfa626f0e0fd3f0f0a71ef819b6. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-17T00:17:20Z), 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/ZB88P2400402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee6fc2997df446da9e346e73c142503e14d7ba742cb4ea8f11b4a5442cf9f744. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:10:25Z), 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/ZB88P2400403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x533fab75c850cad2b38175e56e436d5c4125e786884b6b64faa563806ccdffd8. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:47:39Z), 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/ZB88P2400407.
Type Yam (feat. Mpura, Skroef 28, Nkulee501 & Tsiki XII)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeef6f8440cd5bf0f2989370d8fbc0c84ab0ed59400446f298509cf00251c5ca3. 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/ZAA012200260.
Sabir (feat. Skroef 28, Nkulee501 & Tsiki XII)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd722592c4e59e085f78616673afc6904e241f73e15d768dec0106932bb889523. 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/ZAA012200250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc275ec9b22afa5fd625bc16a76cd75fdbc227d45c53c43092ccbe8f5188ea3f. 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/ZB88P2100073.
51 Issa Lot (feat. Nkulee501 & Skroef 28)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc50726da7a35417dd8529c384d28bd6ca8a0bcc9e7989eed01727e032288266e. 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/ZB88P2100029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62e0b701d4065165e1287ed30adc57d14da8c777a53d9cfb7fbe16ac61f17ca0. 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/ZB88P2100042.
Time To Time (feat. Nkulee501 & Skroef 28)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb23cb7b33ec24a07490ac0d146123f8427d741fda41930c25ca83b770b08046. 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/ZB88P2100070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf596e93298f00eaf163fd02ff935bcf42f88eed14074ec71bbd6c58a293cb71e. 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/ZB88P2100053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a9d82cfa4b886fa85be355c2ae60ae1d33581e17664dac2215a69d0c442330a. 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/ZB88P2100074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30f214c7b9cdeeeb70c067d06a64c5278148f6733f6421aaa8c8a8557fe07701. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/ZB88P2100057.
Booth Five (feat. Nkulee501 & Skroef 28)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5000b335dfe4a23dc823f8a1972be9b6b4745158b408a9ec1cd71806ba0629b. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/ZB88P2100036.
NGiYA'SEbENZA (feat. Nkulee501, Skroef28, TribeSoul and Mkeyz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaccb96fb815683be5af9d342533abd6c4ace9c05be946fe0bf6326762b681993. 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/ZA56E2200638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc526116885608a836760f18fde242c60e443ca9616a7ddd0e40fc30be313df14. 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/DEY472475960.
Sunday (feat. Nkulee501 & Skroef 28 & HouseXcape)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbe11a8dfbfcdb8ee7faec03d5b800d841b647c92dd7b79ae6696baec4888caf. 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/ZA56E2201746.
Captein (feat. Springle, Tracy, Nkulee501 & Malemon)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd75a80e7b2ecabafa92cb87a12853c25835dfd3eb40edd1744a6a05b6d69576. 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/ZA56E2416239.
Friday Feeling (feat. Nkulee501 & Skroef 28)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e94f19a9ee4c04db00ee214280e352cc2ec110daab42d4f17dc11e7b28849d9. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/ZB88P2100041.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1377ebfc4a57448964d7334cbbc4fe253520cb30ddc4a40ab7a149be74f759d. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/ZB88P2100050.
Wall Street (feat. Nkulee501 & Skroef 28)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x752839818656ff1829e77d7b1eac0bf6bf8df746ba8d55a4c72b6f4f48f79fa8. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/ZB88P2100076.
Never Mind (feat. Nkulee501 & Skroef 28)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa7bf678d2a0f9d2f556c4cf164327f6b618ff4c15d8e9a1bcaf503b532c6446. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/ZB88P2100054.
Bhut'Omdala (feat. Springle, Tracy, Amukeleni M & Soulful Disciple)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe02d8dba7ed49915305d9ab0db5842bebca5325e0850a1a02347af577b52d50c. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/ZA56E2416236.