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 0xb376d833cfc16deee4a3824431eb644bffca4bc50d59788a482d72b499f11263. 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/65dffe20-6f1f-4c6c-a038-e21f86d8269a.json and https://artists.proofprofile.net/proofs/artist/65dffe20-6f1f-4c6c-a038-e21f86d8269a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Super Monkey Ball: Banana Mania Original Sound Track
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 0x2d3cb5994a661a3d0bc2dd0eb843cdcac7b0216982bac531e3607d6566ea18f9. 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/JPR502152592.
龍が如く0 誓いの場所 オリジナルサウンドトラック (Side B)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71b710e76004605d26cb1a2b336e754efa8d5743a6dbca9d8f70813bcf577462. 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/JPR501511887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9ed1d79e805886d0e61e3a17ab81c824aef0337a55bd0904cd32dfc0613287d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/JPR501511893.
YAKUZA LIKE A DRAGON ORIGINAL SOUNDTRACK
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ec166d542cb1d7945a34dc19d2ceb84d67d0bf71416366568a94847d596a870. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/JPR502200378.
龍が如く 維新! オリジナルサウンドトラック (Vol.2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fc94a0320e4076fd5690993c444ceafab2734687575efd4ec7889a76211d9f8. 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/JPR501408352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbae74fb25dac2a7bc861830e4abc47cb0526afa83193f2b174492470ba1af62. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/JPR501408369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa23aa15e1bdd5d252283377a67edf25c4d9320405eba18510a4d9f317f885a57. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/JPR501408370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf1ad96921b5d0d5575458a57265338cd55d5ee8e0f3170b512c123e6a401929. 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/JPR501408371.
JUDGE EYES & LOST JUDGMENT Original Sound Track
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e2d58bc5d328eceb57a5814e725b88bb8563c1a37ce8621a76c798e4899bbc2. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/JPR502152206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9376b929a4ea618a6ca26f1430bb25144f50c786e4183f34256f7e32e09c179f. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/JPR502152220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee44f0b73a8643c556ebdfa1e335cc74beb7b8f02d737128e87f2a18a1a8f193. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/JPR502152225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8a3275ebc7d4cdf5f09de2137309edb0b7995b53ade1db36d2057609c436af4. 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/JPR502152231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eb1e86b66ac332bb67397ef013d9e908311d303be8348a7daa86b3d274a475f. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/JPR502152573.
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 0x4405261e2c573d75ee1e277434eb991046e3c493a3dd527fe9c928f45f643952. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/JPR502152580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1af7c0c3232d61de438c677da78280a17b616183038bb4a22d655d12e8acce8. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/JPR501408345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bb476922ef5bb4752d346407ea189f0f9afa05de62b3e9c675bbda166091623. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/JPR501408372.