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 0xac8bb2f44bd9f4e0442bc961023aef7e8d4d3256d57819a0f066bcf0a408d7b0. 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/5ce598f1-b79a-489c-8805-3b6a72d3421f.json and https://artists.proofprofile.net/proofs/artist/5ce598f1-b79a-489c-8805-3b6a72d3421f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Yebo Baba (feat. Madumane, Mellow & Sleazy, Uncool MC, Ricky Lenyora & Sir Trill)
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 0x8e932baadf8152aa8eab71266cfa013f7f5931cf3f2f841e438da03c81c0a3cd. 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/ZBN532300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22effdc1558a7411fd8995672577392caec652e86813e79aded6d22ca385ba30. 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/ZB1OS2200086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ae73ed5571d212b11895bf69b618f428d5fda039b602aa20233c517ca464e77. 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/ZAU120900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa75f0480094003b896c30d27b12ab063ad70efdbbf65f8bc92748cd2190a2b0c. 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/ZAU120900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99ab763757f517b65f3486c06a2399ecac387a025f9878a5145fd0462fe7a999. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/ZAU120900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45e5ce9d242f455f4ac39ed26725eb937fca6b6e2cf7a076ea13df150f04a333. 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/ZAU120900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4c9b45ca154f9f59a177cfa92b4374fc9edff8c7edaa04e3bc73c64be247c3d. 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/ZAU120900008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd39af2161ab930b579b9c5b78df61c148e8a1ec24142a32c565d6b1098b1ed0c. 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/ZAU120900011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24913c628ef3c9d4c363c8dc1d80d56471c5ecfa5efbfa05bed017d2220c5023. 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/ZAA012200052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84230b7a7d511685b3d926806d3d740447bc44b1a11661fd10b443f3ee43b5cc. 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/ZA56E2200451.
Drip Drip Juluka (feat. Madumane, Kabza De Small & Tyler ICU)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x736b605b489a1939480a5c0b36d1dae2ef13811647be34bcf93ac682a620d01d. 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/ZAC012000208.
Izolo (feat. Madumane, Mpura & Daliwonga)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a64fcce1529f86f89c45c4682208baec84f251f1ff6f4c5b7bcfecf3abea4a0. 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/ZAC012100148.
Ba Straata (feat. 2woshort, Stompiiey, Shaunmusiq & Ftears & Madumane)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacd7a5a3bc13036c33a29fda15bd2d3c86a2d58299c9f7dc198854ba1424a7a3. 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/ZB1OS2200107.
MABOKO (feat. 2woshort, Stompiiey, Shaunmusiq & Ftears & Madumane)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dac9cacc465f9994a750853ff2200240dca2ec15553d48aa7b171549db8929b. 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/ZB1OS2200114.
Into encane (feat. Mas Musiq, Aymos & Madumane)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x532f05e15a1031dea76d53d6f6b5dad64a98b2a19e164e7235587d8230900c98. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/ZB1OS2200063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15229ced0644276873e5444ac2aa3aa293e34d2a0cc503f5b18b6d474ab5fc70. 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/ZA56E2200974.
Cocktail (feat. DJ Maphorisa, Daliwonga, Madumane & Leon Lee)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2bf3f4a9c85cfa2d4c0ddb5733e09a2a47b473cf5606cc9cba2e6666bd3e658. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/ZAA012300167.
Imali iKhona (feat. Mellow & Sleazy, Madumane & Uncool MC)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf258bc9f2361adb58583658e6e3bd64525aa67672a90c885eb8fccf5465f9a37. 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/ZB1OS2300220.
Iscefe Esimnandi (feat. Mellow & Sleazy, Madumane, TheBuu & Lastborn Diroba)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaeeb60d1863930c6787b7ac068ba2d6bcc80942a623c6817374ef00046b048d. 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/ZB1OS2300224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x750353943865a0c4244679e5b6016350d5981d41ad571c8063d181d0e078032e. 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/ZB1OS2300225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf258bc9f2361adb58583658e6e3bd64525aa67672a90c885eb8fccf5465f9a37. 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/ZB1OS2300220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e932baadf8152aa8eab71266cfa013f7f5931cf3f2f841e438da03c81c0a3cd. 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/ZBN532300001.
Wa Senya (feat. Madumane, TmanXpress, Ricky Lenyora & Fino)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5704722e2fe2925a6a3896e9aa731bff2e3dd586bc3aa964b14ba6e3d71c1879. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/ZBN532300003.
Ama Ice (feat. Madumane, Lihle Bliss & ShaunMusiq & Ftears)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8704cf8eaed3b639c92a4875db08b97c152c2967ef2ebe5418dcb40958fae3ed. 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/ZBN532300008.
Thata Ahh (feat. Young Stunna, Madumane & Tyla)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79aece44f4977af23d16b7905546319591dc73f5efe26ac8a8460703fe1a2e2b. 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/ZB1OS2200144.