Bradley Miller, known artistically as cktrl (), is a British multi-instrumentalist and producer. Biography Miller was born to Montserratian parents and was brought up in Lewisham. As a child, he le
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 0xc99467311fa3ae82e80624a075a75aee17607e0623bd29b1f1684b7b96b85ff4. 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/829135de-8297-43d2-a1f1-c9fba69de2d6.json and https://artists.proofprofile.net/proofs/artist/829135de-8297-43d2-a1f1-c9fba69de2d6.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 0x060fb8e0fd7cd7616f3715ddb18db2c1e6810ca3ff94acfddee9e75fde113ce5. 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/QZAKB2322276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c6b0d8c646ceee3fd446cd1a33d9b11abc1ef24d4cbadf5ba528fa32450574b. 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/QZAKB2322277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb632d0906977a69445f1ec6d560d4cb694c8abfbf83ebce603a0e1e9249fe12. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/QZAKB2172959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x993647f86c3effde00708682294cdbf462e434ea378c66cb7afdaa6ac3ba528a. 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/QZAKB2172960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe56418bdf92aa6fb2e4c60a8288b8a03e6b663894f4a5b95641cf4807eb2da09. 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/QZAKB2172961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdeabee25f07c0d42a3159258ab5e50bcbcdf4a5adf9b4065f221c7e15180892. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/QZAKB2172962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x759e6df3bef780c535dde86299245291e27471dd83882aefc00e65a8d89679d0. 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/QZAKB2172963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdeabee25f07c0d42a3159258ab5e50bcbcdf4a5adf9b4065f221c7e15180892. 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/QZAKB2172962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2af255b038f44b5d0a1b69266bfef646012141356e24682e909453ddcac4c044. 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/DEXC82200074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd93aad8b866cee46a1d7105bea6881d26e5a6f9b8f554ed9587d4c1dd02d7bc4. 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/DEG932103214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86a859b17980a72c57204d4d3f5b2474e6d1d5b27025876609dae62a194428c9. 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/QZAKB2120066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8091c2e92f853016a73b691b8c7f80b6b5c29d771b730bc1d86ca58c447f7a1f. 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/QZAKB2132985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe333c5c0798aa35f48ac04d96d255d31914840e3c195d2b44021260181038e9a. 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/QZAKB2133100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1e128067915c2ef3bd0f33e7241efa9eb3d6cd226d652c188d1fa5e509023cc. 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/QZAKB2133101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8091c2e92f853016a73b691b8c7f80b6b5c29d771b730bc1d86ca58c447f7a1f. 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/QZAKB2132985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86a859b17980a72c57204d4d3f5b2474e6d1d5b27025876609dae62a194428c9. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZAKB2120066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86a859b17980a72c57204d4d3f5b2474e6d1d5b27025876609dae62a194428c9. 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/QZAKB2120066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86ff1df23fc9ba6df2aed11c480fde90f415f7551fc332d0a319a851e5e5c834. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBKPL2026303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9def382c56879a58d5180ea69cbfc8c6efe958d69972df25d277bc535e88cde5. 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/GBKPL2026304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec54b36752da47b48331dda2511feeb262751d5e3f131902797520b406cbc72b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBKPL2026305.