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 0x35b7672dfd9293da36963e8b29bc8c3bef781ddb0b8e5d8028bb0d47ec366d2f. Chain 2 (Bitcoin): anchored in block 953808 (2026-06-15T16:45:15Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f174d69c-9875-4ceb-8d3b-f29948f97fb5.json and https://artists.proofprofile.net/proofs/artist/f174d69c-9875-4ceb-8d3b-f29948f97fb5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
仮面ライダー剣(ブレイド)3rd.エンディングテーマ take it a try
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 0xb44871c67e3263f53971077e38f3f668344e29809cdfb715666418d32f70c4c6. 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/JPB600452801.
仮面ライダー剣(ブレイド)THE LAST CARD COMPLETE DECK
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3881411c3bf21d5b75c26dc7164fb414351422a46e474c47a28e58c4aabe4eb2. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/JPB600464401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadfaa37c89eb34966a4f7517ffa3af7e78d6b663901ee2df2304ccd07c806916. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/JPB600402102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8df13e9747f9709c6b99d15139ee2c64f140f104b01d4a1e9e9c454c295e6a80. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/JPB600452735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb74f7b07e151625deaedaf2cda999e2204f7ae24432f76eaa59045ad493a04c7. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/JPB600436601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb44871c67e3263f53971077e38f3f668344e29809cdfb715666418d32f70c4c6. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/JPB600452801.
覚醒 - ライトニングソニックイメージ編集
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x835fea47560c917ca1dd425601769ec63257f405a5de170d86f9ef28100dce06. 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/JPB600498415.
仮面ライダーブレイドソングコレクション
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadfaa37c89eb34966a4f7517ffa3af7e78d6b663901ee2df2304ccd07c806916. 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/JPB600402102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb74f7b07e151625deaedaf2cda999e2204f7ae24432f76eaa59045ad493a04c7. 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/JPB600436601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb44871c67e3263f53971077e38f3f668344e29809cdfb715666418d32f70c4c6. 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/JPB600452801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3881411c3bf21d5b75c26dc7164fb414351422a46e474c47a28e58c4aabe4eb2. 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/JPB600464401.