Kerry Leimer, known as K. Leimer professionally, is an American electronic musician based in Seattle, Washington. He is a founding member of the record label Palace of Lights, which formed in 1979. Kn
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 0x15c958709e1ce97c7e95ed80ff31dd59256669905924ea728e32f3666bc7b41b. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/539cd172-4fa0-4db3-be66-c3e91c18f992.json and https://artists.proofprofile.net/proofs/artist/539cd172-4fa0-4db3-be66-c3e91c18f992.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
A Period of Review (Original Recordings: 1975 - 1983)
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 0x0ae9bb9211ef617f8de735dfdb82012d4ec3ea1acc49babf21869db21dd9348e. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/US6PQ1400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc81fccc229f354de027af5d2b5cdc9716fc68febf1c62c2e1e0237bd453c8598. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/US6PQ1400027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b1fe3250424ee4b3fb61adb47195c3dc24891f7edde6ab5658bbe5230ca928b. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/US6PQ1400015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19bfb6bdbab3d68cdd759dee99452d37e61ec28b1eb6468f47a9c8aa588c49a0. Chain 2 (Bitcoin): anchored in block 958351 (2026-07-17T02:38:05Z), 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/US6PQ1400031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3efdabd4a4df7983a2d8e6111a9be57ad0dbed55d744799bd2cdac7aa595d025. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/US6PQ1400017.
The Phonic Chasm (feat. Dawn Seago) (Excerpt)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9507606a404d6d9129a12c5a3c3018bc32106783a795183cbd74f510a388b291. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/US6PQ1400035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4c14308697e787c0d76bed0af4c5f919f66a16389f3e9bb4ce5965e60853fef. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/US6PQ1400020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30dc3c295150e581fe7cfcff2869af6b0c8c799f0bba1ae3a409f33eaeb87999. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/US6PQ1400021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddeac160e3faa451d54a38a299b69ee79f33ed3ef8e4590123355806adc404fa. 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/US6PQ1400024.
Closed System Potentials (Remastered + Expanded)
Land of Look Behind (Remastered + Expanded)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c37cae7629197cef054e343dcf6d2039cdf09a0e05980597850f6e9e27913d7. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:50:14Z), 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/USA2Z1611570.
Imposed Order / Imposed Absence (Remastered + Expanded)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63b900d208fdb6130c3f7628c5889951063b1103090ba163a2d99b83a15bfa48. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/USA2Z2500024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f7705bc393230348a36e934e6b74436e54589e318a4643156cf776a42377c5d. 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/USA2Z2500025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe571293778e13b5b7226b5ffcdb26cecec710979256c643b185673a794a2c2ae. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T17:49:49Z), 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/USA2Z2500027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cb2728bb652163be53640055422b8fa499688251c58ea7e2ec30b6e34289c35. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/USA2Z2500028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9620a10cedcf5d6ec90bb50da42905232e56e4e77c71ef1110c7454ff4c68fb8. 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/DEG931791840.