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 0xcfbe227cc2732134d4491de9ed4f1a56dc5e5d1cc1845638038000b09aa48fd5. 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/7150ba8b-2d9c-42ca-8c94-7d7094af502c.json and https://artists.proofprofile.net/proofs/artist/7150ba8b-2d9c-42ca-8c94-7d7094af502c.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 0xf88f3ce96caf40a1eba93c66a700ef28f87655a52c4af105f47ea645d2e41746. 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/FR96X1982428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75cd9cdb66dca439905ab168babfe3a7078a1adf08ce1904b7a665756e7e5e05. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:06:47Z), 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/GBUM72305575.
When It Rains, It Pours (Jamie Duggan Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf13d9b64214db064316cf642d42dcf891647b3a3672f178786c33de0e0e0c64d. 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/FRS182080544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad803356b67f31b62dfde18ba74c2256d3c4c4a31cdb92477e82273e3e3d4771. 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/GBLV62012101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x656d01f283ea94e267d31d85440a366aaf55084fc5d49163eddf3ceb5b7e72db. 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/FRX452096460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd2100d8e1565f8880a6c03d0bb15ccff048994f3f9ef2a460818addf027cf77. 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/FRX452096463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec14e67a590bebb2ca8fd31f1caeaffe565509b096c90fe6d76fe48ff1d15d1b. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/FRX281947502.
Cheatin' (feat. MALIKA) [Jamie Duggan & Booda Remix]
Cheatin' (feat. MALIKA) - Jamie Duggan & Booda Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c42538dfa9cd698fd32314a5a1dbe85c43bb2fa7bee9a80f38fd92090b303d5. 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/GBAHS1800696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f10cfa284be2a9fea694daedde34de3aa81169853d0ae9573b9f71263d72c67. 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/FR96X1815176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e2a99e011ede02bc076a4b94b0c3716768ed6ff0558ee1896f6ded350b4d8f1. 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/GBKQU1146532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf13d9b64214db064316cf642d42dcf891647b3a3672f178786c33de0e0e0c64d. 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/FRS182080544.
Weekend Boys (feat. Jamie Duggan, Booda)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc637eefeab25852081fdf6ca859275c8b5adfc6588e324fa92f81cf908cfac37. 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/FRX201905348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75adcdc1173f2d2d8bdbe8d5a0db0ee6de9408877037716b132e12bc67fb4d85. 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/GBHGA0401240.