Cardiknox was an American indie pop band. Formed in 2013, the duo consisted of Lonnie Angle (vocals) and Thomas Dutton (backup vocals and keyboard). The group's singles were reviewed by magazines and
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 0xc702208381aaf3a52459678f7ff1333ee39172da5fa01c7bc15614d6e3bc202e. Chain 2 (Bitcoin): anchored in block 953791 (2026-06-15T13:40:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ddb4d467-5ca9-4a58-b421-83d57a2c1eb2.json and https://artists.proofprofile.net/proofs/artist/ddb4d467-5ca9-4a58-b421-83d57a2c1eb2.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 0xa06d6feaf445695889ed48df2f31ce6a94b42cf933a4960ebadbf48aa903a885. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/USWB11515144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa01d3e5818fd87c88fd7e601779f3b6d9a3a4d99591dcd81b25155c0b508efc8. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/USWB11513244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9e6d7b3e31298d51e0abaf2c0385b2a0126176e29de3574f08590201b46157b. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T13:22:35Z), 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/USWB11515145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23e0e6fddf4083b5d25dce073eeaaa53aaa4d748dee528c1cdce981311838654. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/USWB11515148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9c6638df4895ee69a29e15b1a83559351ef34644cc93465ef0cd25c9327d68e. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T18:02:16Z), 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/GBKPL1785349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8753d74002209369ad21517f39cde1ece8dd357467c689dee86be39efb7cb16d. 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/NLUW21700506.