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 0x2e5a4f1eecb239c541da9cba851f087188487997b41f16445f9912577ce24dbe. 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/8160cbef-6ea2-472b-9ba9-02fa440ddbbf.json and https://artists.proofprofile.net/proofs/artist/8160cbef-6ea2-472b-9ba9-02fa440ddbbf.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 0x039de82f04f665e33fc6769074efac79bfe73ef04487002ead19eb73336da089. 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/ZAC012301163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdadd2157ed4e5a7f1df58bf8edbed9862fcaf09fae6e57122129f3d522dbdf35. 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/ZBIJU2200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x121b4d8915daa6c1f89bcd738116613f94b1de74425fd34a251ade8dffd47414. 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/ZBIJU2200004.
Ama pentshisi (feat. Aymos & Happy JazzMan)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf6810a576bb92e4d29b17276a2da9ef1c87f085af34ce370fd4f0a6487ec1d6. 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/ZBIJU2200002.
Inhloso (feat. Murumba Pitch & Happy JazzMan)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8d209a67573f4fe5e4c17a19ad6803d2a9a8f60c953947fbe5064b8caad27df. 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/ZAK282200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd220e1c4dd0adc9cadee5ace987cfdd4d0b3f4a024d6322968054b80596db26. 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/ZBIJU2200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x714d2cf581c6f5a40c4a6fab43fa4707dea68d131c1be48ebe963183c247f51a. 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/ZBIJU2200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf6810a576bb92e4d29b17276a2da9ef1c87f085af34ce370fd4f0a6487ec1d6. 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/ZBIJU2200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x135b9914bc9a106db542705b1e43c0b92aec0aade9a7ff42e8126479da4a68f6. 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/ZAK282100106.
Weekend (feat. Bongani Sax , Kaylow, Coolkiid & LuuDadeejay)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0898bcf450f60d65b51834781bdaee82460f10f4e45edc12ad15130d6fc30524. 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/ZAK282100105.
Messiah (feat. Cassper Nyovest, Zuma, Coolkiid, Nobantu Vilakazi, LuuDadeejay & Alie Keyz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11cca414b1406ed2650b58bb84b916378950d1e0f27e01678ea270ba74b38736. 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/ZAK282100124.
Fela Ubumnandi (feat. Howard, Nia Pearl & LuuDadeejay)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cdfc6dbf7c4da711cab483f93c7f4d9ec56a7fcd3c2501c30890d3fdc15899a. 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/ZAK282100109.
Inhloso (feat. Murumba Pitch & Happy Jazzman)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8d209a67573f4fe5e4c17a19ad6803d2a9a8f60c953947fbe5064b8caad27df. 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/ZAK282200007.
Inhloso (feat. Murumba Pitch & Happy Jazzman) - Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdfe61ae9a4075ae6120dec69ed03f5acbecf3b03912dee66366035fa081b1cd. 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/ZAK282200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95512922e86a84e1f275ee9d6b4de4b1c57fffeb066b0b131545cdd9957692e6. 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/ZAC012201134.
Mina Nawe (Black House Remix) (Extended Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70b97d04b7f5282ec361d296db8e6295d1bc4da62be1cc776b333ee681b04b4a. 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/USA2P2361092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x630b4b85f9dbb556b3f92f812a808c82ed1f8796d25bd752d7a4bd358fe5d07c. 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/ZAC012301443.