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 0x3ac1ca2df4db6f4ebaa0c22c3359cf2cc6cba7ec4e6857b25721b7140ac9cbb8. 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/cdf93758-d9d2-4341-9073-142b52d0ae54.json and https://artists.proofprofile.net/proofs/artist/cdf93758-d9d2-4341-9073-142b52d0ae54.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 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 0x1bce4c3d426edc8232e16aec0dd46e9a81962ca2c610314633bb4c909320ceaf. 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/USUYG1557241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bf7eef95acb50fdf6f99830bf9a063e790bdae5c20a910e841403cec155d239. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/ZBSLK2200008.
Jaiv uJuluke (feat. Sykes & Pushkin RSA)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff19f6b35aac92ebef2d58cb7f54dfccf3f85463338c139be8e256d0a86b71df. 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/USUYG1538027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1532254b04b8eefeac2dad4d7578e35abf48e303e7021f9629bd696839363c94. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), 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/DEY472379402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1ed8bc9abfa861c694e05c34fa2d12c7baa70751930906fe7e41d7cd9ee7fb1. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/ZBO732300096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc859dbd43ace92fb2aded94f20484cf581d2608f52fa95775189a2ca438b6b07. 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/DEY472473217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde4ee59879a0341abc5696df69ed0516e15a056cc092c4378f33621b5fc8f1e2. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/ZAL2A1500138.
King Of Rotation EP (From Tzaneen To Sthiba)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x711d448a0135d0b8c5288616c76b732925e84187c3aca5390268f008fdad90d4. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/PT1GK2100086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc613dc083ea2e47201f4f26ca64ba3fe9b3cf47c92887111c0988a46b3c44431. 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/PT1GK2100087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa756f651a3b8ca1438aec15e38f0065698f9ce03297d81d772362cf1c909f9c. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/PT1GK2100088.
Ogbon (Trekkah Rework TorQue MuziQ AfroTech Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa39b4794f4d2011b2bb9e8b69e718842991ff68996ac3c2f6a7e5659e8ec92dc. 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/ZBO732200034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf46299ee8290093cc36228b7ed698c79a2ffdde978b658e7565b85b2e34e55b6. Chain 2 (Bitcoin): anchored in block 960167 (2026-07-29T23:42:34Z), 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/ZBO732300132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x189e51454a3a54a6545049677d3df362a92988cf567bc33f56611da2bde00cea. Chain 2 (Bitcoin): anchored in block 960170 (2026-07-29T23:52:38Z), 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/DEBE72300938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc20170614e7d0e9b76db2433a49e67764625d87a75fd4e3466e205f9c0a56bff. 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/ZADGR2200166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6e333b51644bd888d16c00d347715ce3e5da18009655993cae392e40b77f9ed. 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/DEY472279104.