King Kooba is the duo of producer Matt Harris (DJ Shuff) and Charlie Tate (also known as Colossus).Kellman, Andy. "[ King Kooba: Biography]", Allmusic. Retrieved 24 June 2010. They are an electronica
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 0x0d68e234c9480a7589f2bbda9437f233b881ad5ddc8ca65764bb239e9253e624. 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/a13e77d4-c65c-4ee4-b72e-36acbc3c727f.json and https://artists.proofprofile.net/proofs/artist/a13e77d4-c65c-4ee4-b72e-36acbc3c727f.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 0xc4a63f450d21a6e0c80fae2f8e5ce3d0df32de2fba65088a0234b5e2cd3b5cdd. Chain 2 (Bitcoin): anchored in block 958816 (2026-07-20T03:51:05Z), 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/USOM80305103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f490c8ef0acfa838c423cd31bbc43451aa463fd0956c883112628f81ee004a9. 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/USOM80305109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe76de5f948ea91a1c0387d21eac31c6f7909428fb53ac5b38a2a529945ccad9. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/USOM80305110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ee59eef681a24457ffe37038d3f517cc155b6bb809aad5dc8c7944c28f372eb. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/USOM80305111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9e07f2b11ffa06e5ae0cbe98fb840614537cfae2668d70b5cdb662c0340245c. 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/USOM80305112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eff5a73a1331de5d40bf7150c343c6d5bb8f73e5bf50f976ccc606c3a63a8eb. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USOM82476801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e087820f5ccd3f225d74c22bdefbe5eab8aa323a700fce62f4a5e24a25b7272. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/USOM82577001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e087820f5ccd3f225d74c22bdefbe5eab8aa323a700fce62f4a5e24a25b7272. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/USOM82577001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x955376fbea562a0bae6a80582a2839f2b80a69d481a1ac086e8767e7710c52b8. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/USOM82577002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x380c1c3eda317c8c0731584635a95322e4be007c64f0c26c429ec5861a4d7a01. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/USOM82577003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc0aae553e831c5b944475a694f67fa0dc0f8679073b13771844515c55463f0f. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T16:15:11Z), 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/USOM82577004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacd7f444ca2b54cbb2696b2e0d678a68f84a380b7cabebedcfd9a8c913d26049. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/US4CR0400008.
Want Your Love - The Jazzual Suspects Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1564f047a8bd708d4f7d82c0759b66091129f8d8b37c9a3e2c096f77a53fe20b. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/USOM82070007.
Fooling Myself - Easy Access Orchestra Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24211615293d96592f910605a202d657052a6fd141858dcbe12133eeb7d3b892. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/USOM80698805.
Roots, Rock, Remixed: The Complete Sessions
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28ed1a81e1a794b4aae5d253d04f5873f368f9d76e6103c3defd1835079765c3. 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/US4CQ0607010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3f6fb0d3bda9f06eac6a3b033ac9d3c4450f4112723e6b791c52fdb4b40dc87. Chain 2 (Bitcoin): anchored in block 960419 (2026-07-31T15:20:33Z), 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/USOM80828707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84f0d87a8fb45b256d1a4e0acd833955e94fec46cddb9bad0597a789fb27b497. 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/USOM80829314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fbeac5fb03475c2abf0e256da1e7e68305c5d65d89279063d38e47771c93fa2. 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/USOM80698205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42218602c89db116814e5380fc7ead9328de15985546a890e9d3808696b06769. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/USOM81258401.