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 0xcdd3c0062681983a43ef670c689b40ce11177782ff45c0ea27008b78177ad29b. 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/ea55edbd-594b-4f70-b485-5daa5ede4942.json and https://artists.proofprofile.net/proofs/artist/ea55edbd-594b-4f70-b485-5daa5ede4942.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 0x513a388ea23197ef1a22fd9140a9337ff49dad0855c08ec5fa5893fd79f70684. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:24:46Z), 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/JPTF09914401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe4be72e7b9c1bd4ca5f9c64aacb92eb7c9cebf5b21e3ba85d3cb377304fba5f. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/JPTF09914404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaad38f3e236f07ea87b776d9016af9ee4a24046858d45b8e0e8e2d0ed851c6a6. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:31:17Z), 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/JPTF09914406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x937ff607130a977e520cb82ad7eff8df112a0225c97407d1a795f9dca8f844f4. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/JPTF09914408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a7509aeab9b25389f5f14a0a1ad3ed5c498f89779d685f4b17cbdea3e592d29. 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/JPTF09914410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d41697b1946075ef328787b3bed1a09bf1e256efa8ca708cca281498716c35d. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/JPTF00304502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06cf9511de1094b3cbd1fb170db61cbac0b620a610f3107100a235e592fbc141. 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/JPB601200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18edf5843683f8c8a9b427e0bffb4f015b5dc33c4297d182754a4993bbd8fd3f. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/JPS801839820.
Live Rereximum - Micromaximum 20th Anniv. -
Micromaximum Live -Micromaximum 20th Anniv.-
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c7b4dadfeddc9d22108e3864ee809bfb6b4942447e3f7b40e536e01e2aaa64c. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/JPS801943063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1172f96393ef683d8c9dd2e86b5b80de80e46a9c26284c49b82e985cae559973. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/JPS801943081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22b14f3bee9c815bcd9b3d383ebd16b6f925d7da5e34cf3cf49371baf6adfa7a. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/JPS801963942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e07d4a438f9e9cdd5b6d5ea9225cfd3579585e16ecf6782189c7e89e5df5054. 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/JPS801963943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3659530178f0aea409baff37461e52348432694fea5a4c061dcd8bdb0744d8de. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/JPS801963944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7a20358ec922e8f7cc12761541929005715e5f497b83a6649abd89e1594a901. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:40:27Z), 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/JPS801963945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1094da63e51d0bf592875e47652f0dfed5cace1888e61b8caa718bcc94afee9. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/JPS801963948.
Who's got (feat. CHOZEN LEE, IGNITION MAN a.k.a. ヒデボウイ, LOW IQ 01, Shinobu Watanabe, TGMX, TOSHI-LOW)