Kokoko! is an experimental electronic music collective based in Kinshasa, Democratic Republic of the Congo. Their sound is created through homemade, unconventional instruments made from scrap, and the
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 0x85feed6cc37038f3ea1b2fadd79476ccc3e71dab43704fe5cefcb62f2c68f41a. 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/72e2759c-dc46-46cc-b65e-0149fbca8cf6.json and https://artists.proofprofile.net/proofs/artist/72e2759c-dc46-46cc-b65e-0149fbca8cf6.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 0x6f5f66f650ceb5863763ca4ba8485b538ce432968adb8b5813ebc8e94022256a. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-17T03:28:52Z), 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/GBMCZ0601061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc21159af5581b285d48f22c5baaa220607fb08f94df2aace81e9feb317930a3d. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-20T01:33:29Z), 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/GBKPL1789553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a9dda294e048dcf7c740dd5f93b08a9d7cfd2b0467c1f83a87963dcb8629f2d. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/GBKZV1900050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x482d9f8ae2b8b2ede49f6b348a974b7760c61c53ef5622b06c6408c557f846ad. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/GBKZV1900030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64bac8c1c318093c24e17962c0e3c54e3233b7460e545395b2cacdf6387ffa5e. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/GBMCZ0601062.
Bim Bam Bam (From Grand Theft Auto Online: The Cayo Perico Heist)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa85899e0c4bc0e69c1e8c5d51dfd69224f588eb6ed617e380e3512f91f739fff. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-17T03:18:23Z), 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/TCAFG2093220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc280956940af384810afba52b28cb2a65330ef0b86e463443e46ad07c910e8e. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/GBKZV2200126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x208a84d8fb6dc5086125eb8056d347f25d4dc3b12b6a031cf0dd1b84a64cc81e. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:30:05Z), 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/GBKZV2300222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f3a6427084535b040e47fe7ed50c9c5e14be24231c6019b3955c9f58f30d4e5. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T10:34:33Z), 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/GBKZV2300223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f3ecfc718ad4b462682e8e76d581f96b6d93d698b79da08e7d7f0446adf0daf. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:43:32Z), 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/GBKZV2300224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75570e5c9685835e2c0cf1bd880e52e3da594ce4dbaac5c29d1afcdc262bc3c8. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/GBKZV2300225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaccf2b957c3f08aaaaa649a13df06fd87cb720399ea7f737ec94240ca159960. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:11:16Z), 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/GBKZV2300226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fe0c9a364fc1a822160632834dd32a13c5f29615244985fab0db64acc4504be. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/GBKZV2300227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fe570a3868a8fb519a3a04714b0bb21c0a04331da241d29428156ae5b81f771. 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/GBKZV2300228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7faf7799c6a2d01df574e73e63d5b4f42eb546d17835c90404598247492a9a9a. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/GBKZV2300229.