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 0xe2ea15ef2e915f32d647d670c5f9ea4cbbf45d79a39ed2156167e5f26fc32301. 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/69984791-11c6-4a8e-b09c-d2504d1cd5c6.json and https://artists.proofprofile.net/proofs/artist/69984791-11c6-4a8e-b09c-d2504d1cd5c6.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 0x5212efdaa8b15674ea68ff49503936fc8085ff4c7b09df26709ffa6bf74582b3. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/QZNWT2222947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e165db5d6b80910b4d03ad8b78eb56dd8af7ffcf3631dd531842d94af91eb86. 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/QZNWR2212865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6e0f46d11148d0b7619c882c76e7a6b73f6bcfc883f5a42e3832d217231e8c8. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/KRB462300125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x721fb309478b703008a2a20d8bf03fbf384a13d60ca972959926ce3d8fa87d97. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USA2P2338142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x265c55c40ebe78ec9b236783ca04d39aa150000faa976a40aae8a48367a29f4b. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/KSA002470239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2bcd7afb0278dbe59fd8b9a4fc294a42574d352db5e701accdb325324bf307e. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/KSA002472671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa940d9f1efa1ce8e02a973b186f4e43164316b791148e5d1b9a173393390ec80. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/KSA002480277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed4bea8aa6d8deaf28df73ae446dd4427e0bb79909e0b32c9d8280842e9e507a. Chain 2 (Bitcoin): anchored in block 958617 (2026-07-18T22:07:13Z), 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/KSA002581175.
PURE RAGE (Feat. Paul Blanco, KHAN, XWALLY, Coogie, Tray B) - Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1410810e5cd19cbec70c43989a9e4de025d539eaf7b4c23033ab5d255a58d835. 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/KRE132400030.
The Good, The Bad, The Weird (feat. Louie, Uneducated Kid & XWALLY)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61d6f0e8ef3673f22845fc1c047f7995a7d5dabe50dc89f7e3e77babc3c9672a. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/KRNAR2332648.