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 0x6b7fd148cc4e7d36d2e80d90ff1cb99dae6e5c93d69e48de8a00cf29856ef6b5. 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/34738c60-265d-4529-aa08-3278ecc21de4.json and https://artists.proofprofile.net/proofs/artist/34738c60-265d-4529-aa08-3278ecc21de4.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 0x02fff550ba1ff2a79255b2779eb3a33a484824c91d643e3f583edd2fd755bb67. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/JPJ900915560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08e752ade46d24d3ec4ef83ea033564290cefaebe45f6c4abd1287019f083338. 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/JPJ900915610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbd41fbdc247a6435dd68386a2740f3b3353916e609e585d923069517454457f. Chain 2 (Bitcoin): anchored in block 958691 (2026-07-19T07:19:31Z), 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/JPE871702305.
Nuthin' But A Z Thang (mixed by ZEN-LA-ROCK)
Continuation party is power & (feat. Kick a Show)
Tonight was Clasixxx (feat. Kick a Show & Sagiri Sól)
今夜はクラシックス (feat. Kick a Show & Sagiri Sól)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf052df9313e6aae058f9d74a4314035ad501ce8b470cb4189b4943915ca208e1. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:26:43Z), 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/TCJPW2390729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf22a23fb86e5c8b243487cb2c7bde058d526f6e8f9a4f2d02fa83694744aaeec. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/JP92N2528826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1e7995837caa870f121a0d4db1d074bd12ba79275a127352746afc9a6da5288. 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/JPVI01426630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57180fd5a955212dc6f46942ef378f0de9d65f0921651b7ec0adda46eede6863. 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/JPVI01404910.