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 0x33fe288b04bbc18405ce8669eb11d8fce973f69b6cc305261f6ba9473b17d7f6. 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/02b296be-b0e8-41f5-8acf-201e49326c6c.json and https://artists.proofprofile.net/proofs/artist/02b296be-b0e8-41f5-8acf-201e49326c6c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
ペルソナ３ ポータブル オリジナル・サウンドトラック
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 0x85db771f6a4991643fed314b11ab014b846f858ae76f5d4383bf729a5c322e51. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/JPK650900104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a1adb90973db98ca666e1eea05468c38410ebac04396b277004580495dbb6d5. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/JPK650900107.
A way of Life - Deep inside my mind Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba4bdc4952d64b8631274722b409cd2a2e4e2c20bdb630fd5367b292c82773ad. 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/JPK650900162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e9ddf2757c743ce8c8f37b391cb6ab5360f8c9eeb06ce0443f9827e9bffa0ae. 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/JPI101100740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1150691c5f90cc0289145b1ca47da79c714302cd9d0ffaaadf7c7233f6d782bb. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T16:17:58Z), 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/JPI101100742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x724749ec8a19ae3c130f17e38dad3b3c325063b0f9aa28772e14127c6a586098. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/JPI101102118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e9ddf2757c743ce8c8f37b391cb6ab5360f8c9eeb06ce0443f9827e9bffa0ae. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/JPI101100740.
Yasashii Kiseki/Sekai ga Kimi to Deau made
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bd28e621a1bf23b356d121d20f05d18efd6521d2fa158e13776d932f39c029e. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/JPI101400315.
優しい軌跡／世界がキミと出会うまで
優しい軌跡/世界がキミと出会うまで
RISE OF SOULS(TVアニメ『バトルスピリッツ烈火魂』OPテーマソング)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d31a469bbb3d1b2481a070719a1c1410b44457c326885df8b8b51399b81622d. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/JPR501614816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d2ec1844418eca26ab25600997b3493b5de868fd8205743a5e6d8d64c2f7c01. 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/JPI101800513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d2ec1844418eca26ab25600997b3493b5de868fd8205743a5e6d8d64c2f7c01. 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/JPI101800513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x747f922e98da902cf5614535457ffea4cc856a16625e64e3bfc793c67ea09ec8. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T13:27:11Z), 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/JPI101800514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf680587c1710c8bc320284d223465aeaa23c935918482309837214f910f40f5e. 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/JPI102000086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe883aae9ec46479cbe7d5eea437fc125a6878b3dec33576eef0d4b0921c533aa. 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/JPI102000087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf680587c1710c8bc320284d223465aeaa23c935918482309837214f910f40f5e. 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/JPI102000086.
ペルソナ3&ペルソナ4 ヴォーカルサウンドセレクション
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffe96fa4252775f4be05c6ff7f569fd89d0146a846598a58656d09a6433d9d4b. 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/JPK651265409.