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 0x788b34b60caad613db9fb726c12b3d402d3234af979332bbe9a130b9c84a9c57. Chain 2 (Bitcoin): anchored in block 953625 (2026-06-14T11:37:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/27e6d52e-f939-453d-bbeb-40bb997a9928.json and https://artists.proofprofile.net/proofs/artist/27e6d52e-f939-453d-bbeb-40bb997a9928.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 0xfc61361bb37f47f31770dc831896efa9fec5e4442ece957e1f3c938df582cd5a. 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/JPK631303101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x801d675411405ca9626a5fb15d466046d3d9b421ac60002dd6cba15223b5e5f4. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/JPK631304001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf69c4dc018d7035eed6e0207e3d6da7014d65528deac0565d70dfe94dc782af. 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/JPK631003701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7edde5af07a4f402d9f702fd2ea74abbcd20d1ba26e59ebe09283d6ebddb216e. 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/JPK631102802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf148bcc9fd0a24136b9908539b3d5870ab4c46658f6f2fd471f8521b4dabb1e2. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/JPK631400501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52e5253f980256f1e0c582040da7ee84d69fff55aabbe5ab52a87aef2231a023. 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/JPK631305501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d88c437c307a215e0eeacc901cc60576df2e2ac53c5d10bacbe98b1751425a4. 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/JPK631303102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7bfeb691b75505894457141d135cab2295864637cb22adf2d5b19308a42dc80. 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/JPK631404201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dece8ae56e3ee01d806657dc2bebf6516f8adba95de440fe19ce06d14fdd2fb. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/JPK631403901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x172d352d44a39fa1e6904fea28fadeca34c7c9347f22ffe706f4fcb766b11cc8. 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/JPK631401902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9f638d6675cf3060de3160c3ab19178951f0cec19940fa1bc502de89ffa1c70. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/JPK631204301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ad4faaed6912bc231cc79d253ae25beb39f3c2c0a1ed3804cd54cf8139f9a52. 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/JPK631103502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c1b11d1c95eb7a57f49532ccc65b5bcdf459d3202f48701252f4184d534dcc0. 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/JPK631304701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x801d675411405ca9626a5fb15d466046d3d9b421ac60002dd6cba15223b5e5f4. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/JPK631304001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe112c097ab76a694e1556206d121551ffd216f70d4a8ab82d886608e470544dd. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/JPK631500301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x780bedfd2460df89dff2957094e0f8b3cedd70f710cc9a586858547735767957. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/JPK631304002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9782e14bd22e85766a3be76b8afae37d9093450730d1a4ee2f1fa68c9e405b14. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/JPK631103101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92828e0ef9bf34afa6161ce94ddc515a8dc5a9d509ac39e4a424aee9f8202755. 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/JPK631202101.
Higouriteki katsu teisei funou na omoikomi
Higouriteki katsu teisei funou na omoikomi (GameVer)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe74874d7f79d82f1ece023b719b750204d026cb43fca50dfe4b0e0e6b9391f20. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/JPK631505001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c1b11d1c95eb7a57f49532ccc65b5bcdf459d3202f48701252f4184d534dcc0. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/JPK631304701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x801d675411405ca9626a5fb15d466046d3d9b421ac60002dd6cba15223b5e5f4. 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/JPK631304001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a4d10769400d0f828fdcf2cdc3bccdd55607bd78ad73a568c1c71e6daaa92cf. 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/JPK630905801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9782e14bd22e85766a3be76b8afae37d9093450730d1a4ee2f1fa68c9e405b14. 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/JPK631103101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0099bef7625c81a9c87f7abd96117c906215d69e659b4f5b6b0949c4e6067e21. 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/JPK630906901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92828e0ef9bf34afa6161ce94ddc515a8dc5a9d509ac39e4a424aee9f8202755. 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/JPK631202101.
マスカレード 〜ノア第三章列王新世紀編より〜
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72f41784c59e78b05bd09874b30799ef22da32db0882c95f820eb381821f7d4f. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/JPK630906902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc6d806fbda3b16e00ed41d6b6d60fecbbd9a92945dfa88112c529f30b9d1966. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/JPK631102702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f3ad17a944b77d9bde4641f74a0d075782bac17c42d1e570ac93f96699687e7. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/JPK631004101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca15e6540000014998bf401431cb1a7548e39ab921902354668da4cbf4efbd00. 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/JPK631102502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2df7ab91b1c03c7e069a84743953a885d985f2b563b9ad8cf07296050373c9c1. 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/JPK630905802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe10a92f6191fd695ff14db1766047b8ad737e1680d9ec731d4a4964913e0baf. 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/JPK631007002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5c09b8f182a5597721a0b0dce13b6b11ddb5dbec09963fdb1bbc47ff7a7ab69. 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/JPK631102701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71eccd1f3f36ebb867c836b0fbf6193379c69688c521010e99704bca250d2f56. 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/JPK631004902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c7054a5834bfcdc49d973c2ab7b5c717f1678ffb2f0fddd962c5cc8aa513591. 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/JPK631201701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc82c1a2e58e844fe304f74ee41a035546d578a6f8d43a59fd51811933d2009a. 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/JPK631005502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4d2eb0026c87f3a82f76e879cb9e497a184ba32c9318b49dfa268d1bd9d06d5. 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/JPK631102501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63fbf1dfb12fd942e6f40584a7066546c99726c18988c33123e262959b22e968. 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/JPK631005602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x040580d5897fa7495559b9178be5bd7dde20624abcf1acf051407f297168e81c. 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/JPK631006002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x163ed148378fbef5a59599b283804efef304fec0c6ee9f12010eef4a80b1a546. 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/JPK631006102.
フェイリス・ニャンニャン(cv.桃井はるこ)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ae9b607e0efea6928ccad0484d6399d31c2719c12bd57c34a6520f663b425d6. 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/JPK631007102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eb4583c12a00084c15539a458763fefa9b8215f34e524c768e75dac2a91e560. 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/JPK631007202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67ec52b395b96c52a6dc26d974cf955a217b005bafeb32cd5ce21bea4fd0444a. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/JPK631705302.