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 0xc0205705f7d3fcf34b4141beaa0116a22834912012d0127082810dfa6392221a. Chain 2 (Bitcoin): anchored in block 953614 (2026-06-14T08:40:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/190a96da-1456-4f8f-84b9-92c0d9713e91.json and https://artists.proofprofile.net/proofs/artist/190a96da-1456-4f8f-84b9-92c0d9713e91.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 0xa3e0a72bd7be221e00f72967e2f8219fee6845c151cfe00f674dea354bd3d159. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/JPI101001679.
『探偵オペラ ミルキィホームズ』ボーカルミニアルバム「Colourful Garden」
プロローグは明日色 / バイバイエール!
ミルキィホームズ ベストアルバム「ミルキィパーティー!!!!」
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7feb5a0ba8b3a7a17f214ccac4739e6ca04b2e6ed3a01b088f4e2adce3c962bc. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:15:11Z), 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/JPI101000869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60ba5e7fde596cc8c4dc229206d2d1871b5e2f841d16be33b33da6a529cec5c6. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:53:50Z), 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/JPI101103240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x915d473f352ec9246198c5874c1482e2c25f33df542288aaabe3eb227e56132a. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/JPR561200019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3678cf270f9fc9d2ec7c7af0639946e1bca2230f697786834058945dff176178. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/JPR561400089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa50c01b7477fd39ff04c90612592ad802552e82080767d298466e9801d2fe18d. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/JPR561500112.
毎日くらいまっくす☆/そして、群青にとけていく