"Mannish Boy" (or "Manish Boy" as it was first labeled) is a blues standard written by Muddy Waters, Mel London, and Bo Diddley (with Waters and Diddley being credited under their birth names). First
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 0x985548a7d937edcbd0533d1f007142cad52939e7d886982d5e3cfa45ad853c3a. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d17c51c2-53d2-4f20-a88b-10ec0ed04be6.json and https://artists.proofprofile.net/proofs/artist/d17c51c2-53d2-4f20-a88b-10ec0ed04be6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Last Ticket to Rock’N’Roll Land (Redux - Extended Tour Edition)
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 0x10da2b4a453404615a830b6f966bbbe9c5162c09d0591db42eb4c093333bbe72. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:20:52Z), 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/SE6FE1900102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f1af3651767dd99ed4cef811da088ea46776356a5aa15e1bc80f7d2fd1ae9e3. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/SE6FE1900103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4f0d2005e75ca0e2b02309af0523eb5f4decaba82813bbf9c39571b5fd53c09. 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/SE6FE1900104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2f20f8f4fcaeae47ab9b9aaa9f28720b6b6625520e24af8ad2c1c85dceb9a7f. 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/SE6FE1900107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21aa516aec124119d70035d60ca694a616e980d6f06b4fb8405ee94eb1abdc5d. Chain 2 (Bitcoin): anchored in block 959009 (2026-07-21T15:30:18Z), 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/SE6FE2000101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdae2d62befec8ddd35f57faa0f6447687a5fbf214f155f3daa518cd12dd645ac. 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/SE6FE2300101.