Mike Ladd is an American alternative hip-hop artist. Based in Paris, France, The Guardian once described him as "the king of the hip-hop concept." Early life Mike Ladd was born in Boston, Massachuset
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 0x293ce7850fb5f083829431f111a7050657b13543296a4306bc58b8aff87e1944. 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/7f498af6-9055-4cf2-9e62-349b9f70ba0f.json and https://artists.proofprofile.net/proofs/artist/7f498af6-9055-4cf2-9e62-349b9f70ba0f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Transatlantic (Soundtrack from the Netflix Series)
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 0x31683f8913340b00fd6f961f73da7699be6348a3c9f819da4f1f42cd1b61de14. 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/QZ8BZ2304901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1fad8956a7cc5aa883e873c9ee10aff5f345030564438b14612b27d72fe9868. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:05:36Z), 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/QZ8BZ2304902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51b13c20fc3755e8c559dc5d819e0990270585167b30f0e7c76f9dd15cc710aa. 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/QZ8BZ2304904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe07648db1779964053219bda4566d73298752588779d101187ce7eb6405e2a61. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), 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/QZ8BZ2304905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfd6833169001e8e2428c95160801d588b258f41b5f6c1b0ac4ad8b659739c17. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:08:49Z), 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/QZ8BZ2304911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67ec259cacb98fdf308b092f69a22a6450b1eefcc28c44d326c6abbda0e36ee7. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T17:31:01Z), 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/QZ8BZ2304917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4ee0a12a5f594e05bdc67bb02cf04c614e44c57dd69a037f266ab3432a2a75d. 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/FR2W11700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2c414118eaa2cd1edbf2d507a7acc01eb2b81183e841a59d92eaf27a56b3c88. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/FR2W11700004.
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