Kava or kava kava (Piper methysticum: Latin 'pepper' and Latinized Greek 'intoxicating') is a plant in the pepper family, native to the Pacific Islands. The name kava is from Tongan and Marquesan,
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 0x88842a41ff73c837cfdea23a0b9beaeb0096cc66baa2006d3d0a05f6feaf7045. 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/886aae3c-d737-4751-b9d5-f9559b2f225d.json and https://artists.proofprofile.net/proofs/artist/886aae3c-d737-4751-b9d5-f9559b2f225d.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 0xb772cea0e14028eaf92bda49eee6643cbed2a576807ca684a5bbd2d8e1cc423d. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/TCAID2483965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb29846578e3aa83db253888c6c70c28d649c9f847232da10d3ef442ce3352a83. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T03:23:22Z), 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/TCAIF2401910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7edfe2443e5cae81008eefce5fb3e1b129022ddee009bb4bf5113635aa012e3. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/TCAII2401057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc40517ff753be967c21db5e0a64c7226677f97c4f0337950c42900c9fac5302b. 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/TCAII2488164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57bf2da4b7d4ce5ddc85c9f33f544276db9406d7032918441442cc97bcaf6c64. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/TCAIJ2419653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee22dd1a9cdb8fdb3c376da330aa722a9ea95285450313dc535ccfad2eb852ad. 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/TCAIL2407489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdec1160931993fd009a75e7201610247b2ccec5cb2c64346f14802470de6b34f. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/TCAIK2444541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d46ce2da3e0106d345fd002fb5eca2ac66b8bb7c83693f39acbe044a2d6f5eb. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/TCAIU2444376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x660151834b6446848e0aeb4410ea0c251957113658781abcb2b44a95490edb77. 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/TCAIW2404153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x497ba02b092c996a93e2d7de28561f73958725ecdc2a98a83c3de23fe7b549fa. 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/TCAIX2405716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72e41399e6c7a2dd8dc4f697108fa146669c0a98e110a6f8c462c3fb5b6436d4. 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/TCAJI2597066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd088d0de975dbdeeb7fc0f215cba4764dec69fcf6d36b0be3da39ed984ef74b5. 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/TCAJJ2551029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe39cf240132d4848c637a681dcaba8822497b88a61f7e8a85055e59a5cfbb3b1. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QM6N22507087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27ecb61d29ff2eb87daa67968422b3d7bb7263c0742a84c56afa6d41fe18067f. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T06:34:21Z), 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/TCAJU2543842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60a5b530f75637e6e0d154564825a870b4d1945843b14f98c0065976128614bb. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/TCAIE2416624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x696619f8d371b9b9d1be231d5681065ffc61d0c74684a2646658cb2a6c18bf4c. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T13:58:06Z), 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/FRX872568100.