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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09a3d2352745417d070ce1c578eaa2cfc842775b0ad8d7938867ea9a6f5aa2d3. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1088c990-7b18-4349-b3c1-03920db500c8.json and https://artists.proofprofile.net/proofs/artist/1088c990-7b18-4349-b3c1-03920db500c8.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91dc7e23056b8ec4486978c1a9f61b48d1fb9eebfe39f430c023018e8d27e133. 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/USA2P2351971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x540d1a4fd01ccb366df2cbd03ffcd0e786f3be7ac1f04df2a46d6deee0e7f67d. 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/USA2P2201541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7b45094859f1dc13605c531c2615750a53fd8d32515dabd4435b70d6d44b612. 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/QMCE32100317.
Bundles 2 (feat. Flo Milli, Taylor Girlz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09bbda5b8803cb52be96c30986d2b13d126a6241adadc7a1e3814a7c2247c3e3. 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/QMCE32100359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7b45094859f1dc13605c531c2615750a53fd8d32515dabd4435b70d6d44b612. 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/QMCE32100317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd068ce2fa632c30a39cc04e10812eb9404c099de806ef45ac4c18ffdc1cb8623. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USA2P2237646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33909657a2b36ff821f1aad8e96cbe5c61e8e2e4a107ab4695b760a9d0834f63. 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/USA2P2201085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x541bff678acafe4fa38d20a77289977cb74df52bbf5173381cf584690e6be7b7. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QMCE32000190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7f1f4693e76fae24e88ecc0588a3a923280d7a487b71415d33bfe78dfdca55e. 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/USA2P2418980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4197148ec7f2d866b6e7d710c3772da17320c9128205609b2c3840a755bcd1aa. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USA2P2240144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf50e2abb1d438e8ac3e44b92395fecb1b5252093db41245cba429048563c2836. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USA2P2227240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe64b3346398376f6e214ea20eaa2f5003de50206652b9e1eff651f4638b8c986. 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/USA2P2514836.