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 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 0xcfedc29cf56b5906426e04ff98a515e5130288a899b4c9e6f7053180ed287fa4. 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/6ada62f6-5eb5-4c4b-9822-e6cad8b65d1d.json and https://artists.proofprofile.net/proofs/artist/6ada62f6-5eb5-4c4b-9822-e6cad8b65d1d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Shake Your Body (Tatata) (feat. Donn Stone, T&T Muziq)
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 0x60d0239e5c63171cdead8615d541ed53c35b3b166b7edf54012ce60ff84381ba. 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/ZA56E2416273.
Ngenzenjan (feat. Mdu a.k.a TRP & T&T MuziQ)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9afa83a0563daa5965df1c8bdc8c5a90f2b8ad1f2c65b6f995d0036c9ca38df7. 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/ZA56E2416274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x823f2f01556d2bd05979f2802154f18fd78efa204967bb3a9f93fd23192be38c. 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/ZA56E2416275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x502e68e50a02ea1533d261a503c32009785758174e78df48d4036bf26ec6872d. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/ZA56E2416276.
Sbahle (feat. Faith Strings, Sim Setter, Smavesh, Mankay & Choco Dynasty & SYKES)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6653d69234516f36b0519a3a1092cd459d8b91e99c6f0048bba85c5522c4d2e8. 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/ZA56E2416277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e2f5f00b05e385c2e10223d71b8cea4610ee6bbc53ce97dfbfcdb7ac7fc7c80. 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/ZA56E2416278.
Qaphela (feat. D' Braz & T&T MuziQ) [Intro]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x921e0b514881262c97e6f54994f6aac34db05a5d601188efe3cca7721c876948. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/ZA56E2527100.
Skweletu (feat. Sfarzo Rtee & T&T MuziQ)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x173aec0ebdc79337d95ba6c62a55bcfcca8a51970332e1e5ef2d3c0d126cda05. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/ZA56E2527101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3acf595e6eefb952bf0ebc0e0d910e1f29642287d92562b8a19f69c8709c5e5. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/ZA56E2527104.
5km (feat. Pushkin RSA, Springle, Emjaykeyz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f3184217c26c679862676e780c802ede070563ad933326b951eb9fd27340426. 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/ZA56E2314716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe51c7ba0b76be63cf7f9e525f1c72ac9ccf85ce996b467f521c9651c8afe6b4. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/ZA56E2200640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0746f4a57533c831504fd08c9caae5edccdb21ef6230353bda81184c25845cb0. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/ZACZ82300127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ea53457eddc8d00af30e85f626f4f21329616e6a5c1bac49cb99148bf4245b5. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/ZACZ82300130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe5ebdb5b659c8a7b52cdb87f41d78f7b2c8bfdb078b32e573721cbc34dfc0f5. 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/ZACZ82300131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb514c7c7043c1142aaad7b02e6d22df139eb738b1dd743d158a2705b167e9f3. 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/ZACZ82300107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe821a735911072b5d9c9e44a1f81af64e73ea41622780af36b5c466f460b2170. 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/ZACZ82300136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb514c7c7043c1142aaad7b02e6d22df139eb738b1dd743d158a2705b167e9f3. 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/ZACZ82300107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5ad23b2c4d00c03f69823c43cfdbb7a288946358e4ea19713256dbffc21bba5. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/ZAMAO2200023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c7b2caa1c708e3bc9b98edfac1d019a415e01f2ecbf062045f25f109e59166f. 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/QZFYX2215095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0e0ab57e76e93ea6dc12c5eb5663a6299ccd0b14bc35a911b40aa50cec42275. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZFYX2215097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f3184217c26c679862676e780c802ede070563ad933326b951eb9fd27340426. 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/ZA56E2314716.
Amaphutha (feat. Mashudu, MDU a.k.a TRP & Springle)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x015ae3438ac41715d2f6feab78ab7adbb72683076f6268e518c7040395395cbc. 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/ZB88P2400373.
JJ PHAKATHI (feat. T&T MuziQ, Pushkin RSA, Springle & Jay Jay)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd09059fc98af21fdc357cbebad2953f44238206fca05d57df188ced5173f8622. 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/ZA34K2301333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2283c143a609190fcc5b4730c83fb23523c11813e5533000f27d70d3274b90b9. 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/ZA7RV2200016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x805753f111ce1f5a2089eb46d95b8a72312421a30740d888067dd22a4e2120d8. 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/ZA8YF2400002.
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.
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.