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 0xfaefafbcaf14d5f6ca70b8307229ff9fba070f81757d89fa2e3e238b5a72052c. 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/cced6818-c8ed-40b2-b852-6721dd5075dc.json and https://artists.proofprofile.net/proofs/artist/cced6818-c8ed-40b2-b852-6721dd5075dc.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 0x847b41f3407f5a7cfce1bfa12d9c6b3921f0eb858750f6ed2667f8c058a3804a. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZS7J2162408.
Murder Dem So (With Alex TOK, Dynasty Tha King & Jeanine)
Mountain Peak (With Sizzla, Capleton & SRP)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58b3da1163837dd45065f0ee884a48061528b872a5db0d7068fd28c1212135ff. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZTL92280770.
You Are My One And Only (With Jon Secada & Charly Black)
BL Tha Hook Slaya Presents: Riddim Club Masters
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf60de3f7e0d8ad6d16e8af551bb814a661c19feac7063812fd322ecc4bf0b33f. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/QZS7J2284806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08544ba144079a98517749bc7ddf48e958fd22ac8f73fc8867796eaaaedbcb67. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/QZSYP2468923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccb02f7a5acfbd1ac94e2efcd0887aac8c4a42d58a62f81cdfc26dc91e136a91. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/QZS7J2471864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f97fb4a461d18ec87cbc3e266d5220c32220a34e1bfa69689c34fb3bae3eede. 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/QZQAY2417528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a23efd3e481b675775b9e80d153219a2f3e8dc7de2c15cfef1365996dd2838b. 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/QZQAY2532228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd597cb227e77e669a764274706459c108d4042c7a222250249421e2dea03044f. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/QZQAY2590791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x094844ae36c9e2a1c85ad783f95442f876c75fb3dbe580e181f11e0b2998ca08. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZQAY2539084.