Kitchens of Distinction (sometimes shortened colloquially to KoD) are an English rock band formed in Tooting, South London in 1986. The trio consist of lead singer and bassist Patrick Fitzgerald, guit
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 0x290824792326e2e7345ccb06d92e57848d564a77f3fbc95fd7a23440d5be053a. 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/d513eeeb-35c3-4cbe-b709-313d37682bd4.json and https://artists.proofprofile.net/proofs/artist/d513eeeb-35c3-4cbe-b709-313d37682bd4.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 0x8499136666d792bd6a0cb709e57171bfed2a34d4afff877fc084b4af526ba3f1. 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/GBBTF9400046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x859856c95faeebbd382150b6697ec662f6c0c4b31e35a02161254330244784e5. 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/GBBTF9200132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0590b123149dcf9c3f14443a80b358b407280d502e1e6354e4d1fe84d5f78027. 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/GBBTF9200133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5ca238b9e7dd80fdf4801b740c9485d658a7c310fffa9b904d7b0eb15dcc98a. 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/GBBTF9200134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc373b4bc8b41f087961b66884ca7ce37f02e3d51cf8be1db9ae2c5b447f4052b. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/GBBTF9200137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12a8304dd632103c0c2bec9123fe2813aafa9e137c09cd6618aff76812d9ce4b. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/GBBTF9200138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d5e6d6de13089b28ec61e0925751b3eecf84d6a5c1db6959bbf7ac6b9e6402a. 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/GBBTF9200139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa78ce0b712264c32b9696f7b8f29d149c11096608d3230eb3bc1f44a2481d40c. 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/GBBTF9000048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7646df4870a0fe5af2542627ea5eac20545d97d911effdafc7865a38f8202be3. 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/GBBTF9000049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe823eb92d07b0e1cb2305e4e17fb79ce97bcf27ebd9bca1b4a355474b517c971. 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/GBBTF9000050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f7e031f2df17537bb6ca11ace0afdc42fb2d75f773e219985f122b93a2761ea. 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/GBBTF9000051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78853f962177306312a94419864c1f4259b307cfa11ba8a4d754203d0bb6a5bc. 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/GBBTF9000052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf184e3ff651deffc5a4e822cfe33d66135cd060d4f8f87a12cacddd28dddca70. 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/GBBTF9000053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2ebaae44853cf1268ef1dec0f4388ae923ef0a5506bbde7ac240834d3f1c1bf. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:47:46Z), 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/GBBTF9000054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c4e650b2622c415065b0a6bafd01df2cce1f02e7a65573832ab2ab166bb1a07. 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/GBBTF9000055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25009cc72441e9110f1a50c5756ce56ccf8bc37ad12354c0e8b43f4ded38b672. 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/GBBTF9000056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7388151adcbb7d14dcdc7f1e3eb6f8ae7c297226153b7e484251a5ef4e100296. 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/GBBTF9000057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c91b1a4cce00ed5247b6d4bc74ffa391e909f300ee047d26ff87afcf5ce7d84. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:50:22Z), 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/GBBTF8900017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42a95b771a3607ca847f2d46ba10c0f53ca60d2c2ad945420241aec93f0ca68d. 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/GBBTF8900020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa35918b1aeef70be340ea15d200784bb62589b0aeca30e27178406b770b5f2c. 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/GBBTF8900021.