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 0x78e7850433729eb1f5ca2d5589f45566f8ad70a227727512326c01e7d69284c3. 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/e5d8059c-0722-494d-97df-cfb68368a6f1.json and https://artists.proofprofile.net/proofs/artist/e5d8059c-0722-494d-97df-cfb68368a6f1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
All On You - Mark Francis & Crue Paris Remix
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 0xd8e66f3f48574435eec42ff29a7e7958f8cf2f1b39ff7e21542f36e2c63a9dc2. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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/QZ8NZ1700137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x084b57714caf5933d5a5a3cd9bf396d422cbe71e0125e748419c0bb9a16f0774. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/BEY922007008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5c5b93445322d6ee06709659496f7d3bca0b4a97665a0dc51cbe18f9e6c8560. 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/BEY922007010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa01ab71450c84e02ce282d25dfd1776f74dcbe45980a5baec78c00641f5b0798. 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/BEY922007011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca4ed399757540ed1fecc74be4fc878e6b66c44c26292d29dd3079f6da36b264. 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/BEY922007012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94bd1d9e327bef54c7384802b8936404997f5782eb126cf7828794b792815628. 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/USNRS2443629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82464b12329a9df628f8b07a284723e5f2796bacc666f6f3f467473f159636ca. 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/GBKQU2034196.
M'Badehou (FNX Omar & Cee ElAssaad Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d1224e3f5b0241d8b0a52862277236d68d2f1671cc43fdfc2a7c276230ce9cd. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/FRX621880010.
M'Badehou (FNX Omar & Cee ElAssaad Remix) - Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x257f617d7be7672a8b3c1eba16037126bf7da9ee2d324adf2ec8adaa924bc1b3. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/FRX621880011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4cf96e6eeceeb7b4e58ffb3c38ff653f781a38c3639967294eed2aae39791a3. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/US83Z1924344.
A Long Engagement - Cee ElAssaad House Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa97ba9a83d644a989c5a5d2831a66ec40e221fca7115de77e0bc1b677dde000c. 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/US83Z2308764.
Sacred Chant (Rocco Rodamaal Remix) (Mixed)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb49b79412f238f253b45d125da13cfee784b4b85805a1490a3f425b7d621f15. 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/CARE91801129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf9fe50c387790048e7eae0b598aaf3c4c5cf26ec917efa59af167cc437068e7. 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/GBKQU2409295.