John J. Mellencamp (born October 7, 1951), previously known as Johnny Cougar, John Cougar, and John Cougar Mellencamp, is an American singer-songwriter. He is known for his brand of heartland rock, wh
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 0xf6cd0f36608ceb684db6946102873356945b805a9a2c7f16a888f27cdb221b29. 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/4353bbf1-f52e-4821-b34d-0a48412afbe2.json and https://artists.proofprofile.net/proofs/artist/4353bbf1-f52e-4821-b34d-0a48412afbe2.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 0xb4504338f59e355f79e8d6539589199348292bcd5e22c647e9c79527c7220bf5. 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/USJM18200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13db1d6a9854e2c06c332c00789fc9f1cfda073193c5e767512280454e17e3d0. 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/USJM18300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fd715f4be70dedd75f42e186eb53834eac183b18a37e88f78ba891a65d7f24d. 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/USJM18300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x250891a0381868240b91a50da372aa90031433e6dc01f84e67b8458bd9713ace. 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/USJM18300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa39fece214fb0def69cd0c1deeb9cc6aaf504f624fbfeba28ce1c70eb5519dc5. 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/USWWW0125399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd5c5698f59b8c7b7c0c978a85512a1958a2be070069423bad72243d5eabe8ea. 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/USWWW0125400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3125ca1b88cbe0e6ff7117aaa6446a1e923cb62878c6025d09d3e018a4dda33. 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/USWWW0125401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97069ff04ae70fe367ae5dbe084b68a7ecbe9309838bf07817bb0ed26870d3a2. 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/USWWW0125402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86a89d1c2d53b22bc87fbe2a52d5d248e5048e9b78d287103f8e15c143c5717e. 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/USWWW0125403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd54e1a28765e41d0835b1f6570728d1a7896a89c4de62059fc668c1f13c88abe. 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/USWWW0125404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda23664db761d38924a405e9b5680986368f3f4dc285b001dfdb240944c96609. 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/USJM10500025.
Woody Guthrie: At 100! (Live At The Kennedy Center)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x224e71b75c09f36250b80901a3c9f5255a3d81b49e37ba0d10768e0330525986. 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/USQX91301083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaddd748062f6ee1989735f36bf2e9f98458c871720704f12443897dfb86cbb8f. 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/USSM11707700.
Ncis: The Official Tv Soundtrack - Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60f4143e2fe574a766b11700ec763a5d548092cdb8121c57d179ca2e549c772a. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/USYLB0900406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8dba6a0691eb542c0a2491effe3d6be9210fb45aadf189dd99581e881f1e757. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/USYVW0700061.
Like a Rolling Stone - Live at Madison Square Garden, New York, NY - October 1992
Bob Dylan - 30th Anniversary Concert Celebration [(Deluxe Edition) [Remastered]]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7727adb6e9ad5a94320710b3f0f89f5f39cbc5a9e7b07eb19f91dcbf584016a8. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USSM11400398.
Leopard-Skin Pill-Box Hat - Live at Madison Square Garden, New York, NY - October 1992
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04a70ce7c21a063f56a97d6fd00cf946c412240a7ab7736456a1b0e9aab87ef1. 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/USSM11400399.