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 0x81c2627bef6b801469c8d122403c87cdab34fb201a4f5ef521c83e14df44141f. Chain 2 (Bitcoin): anchored in block 953768 (2026-06-15T09:30:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bee56ddf-0bff-47da-a1dd-9343cdb7dec0.json and https://artists.proofprofile.net/proofs/artist/bee56ddf-0bff-47da-a1dd-9343cdb7dec0.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 0x2a2bbe5ff29d51f3270173697bca5536bf0670ce5b307e930cbc04cd6230b438. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/JPSR09073229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc55af04a2566c73626e05f8c72d00220cb6dd60802ad4b43b5fcfb85d58c8600. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/JPSR09073239.
再創－"いぶき"・リミックス・アルバム
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee20eb3b677fc04bd4d67ae3213d164d72542d46ba5b11b477acd6522ad9803b. 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/JPSR09815204.
佐渡へ～鼓童 ワン・アース・ツアー スペシャル (Live)
The Heartbeat Laboratories “Alatane” (Vol. 1)
The Heartbeat Laboratories “Alatane” (Vol. 2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93839baf73808a72f85cdc85ad1a5adb79870cd5e6457e3e2c7c7f65ae2f1473. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/JPR502304731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93839baf73808a72f85cdc85ad1a5adb79870cd5e6457e3e2c7c7f65ae2f1473. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/JPR502304731.
Shoso (Live at Asakusa Public Hall, Tokyo, 2022)
翔走 (Live at Asakusa Public Hall, Tokyo, 2022)