King Kurt are a rock-n-roll band from the UK. They formed in 1981 and split up in 1988, although they have reformed sporadically and played a reunion concert in 2010 or the Psychobilly Meeting in Spai
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 0xcb4f99a7d57809e2cfd142dda25923c3cb1c23d6ce83a0e698a54a9f0a748d68. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/83d1df7c-46a4-4dbd-ba22-a611d667291e.json and https://artists.proofprofile.net/proofs/artist/83d1df7c-46a4-4dbd-ba22-a611d667291e.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 0xf4a429db709ecc868ca848e378f69e381bb056a61cd3d79c5ab0751dcfd6bc99. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T01:43:50Z), 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/GBCST0950301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7138c25bf9e728a3db4802b9935086845ea15f99637ed60913d50c452715bb7f. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/GBCST0950305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f731f6a3d4b943ee1ac44270948408e2e4da892486d8612d780070416cb9760. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/GBCST0950306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f6696ad02cdec739a53c2e03ff045acfd2907cf2bc93d81b2471d1559822d89. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/GBCST0950318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86cf6bf5cb2d41028d415531c8371b29213baf88d9a9eeebf1bfdc563bfca9ff. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/GBBLY0703371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8f53d8add69a8ec4405a7aa4cbc6e7fc1fd9227025a110901d07c449a105b41. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/GBBLY0703375.