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 0xebcc296c343580c398f95ce302b1afb1a1bb5b41c6be0de3b07cd8bf4077f5dc. Chain 2 (Bitcoin): anchored in block 954569 (2026-06-20T14:36:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b221d149-b0da-4c7e-8893-21be406e0552.json and https://artists.proofprofile.net/proofs/artist/b221d149-b0da-4c7e-8893-21be406e0552.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 0xb1401ab506d1ff714ac0b410ccd965201e50dc04b485b4fc8c783d3fb0a598dc. 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/JPB600813001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f04edf01ea04359f958edeab5b0c4dfa12512ef497a33134fa118ec1944cff3. 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/JPB600869702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x130b64444f1baf5a93abb5c4898bd487ccfb31b78eeabb2fc6efaba167722111. 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/JPB600869608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45d539872bd6610ef675f79d838eed7b964a5abf36bf2983e6f8111548a57c88. 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/JPB600845101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27b7c56c5a7990d7c164ac57f622691e65390fa13cb982846563c4dec6436ea3. 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/JPB600833101.
Fight for Justice - Individual-System NAGO ver.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cf997b7d56be921d5ea4b1e754b9e12e9954d06e20a687f2e3686106d6efc29. 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/JPB600842001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca0b5b607845ed443fe6b86d0ff6ecc8068ac26efc62e87650900b01265672b0. 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/JPB600844902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71a0630ce9bb5a4ca7079b5742c6d409cd9af027a0133343fda680c1062e8aea. 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/JPB600869705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd1cca6e625698f8f8c34e42b9a6287d9c896411a9d525977e007215ae283988. 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/JPB600869605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x705f3050a1bfab1cb8a9ff8dc302a5a14a1a6e09c4a3d853877c7a6120e124b7. 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/JPB600869602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc805c083cf3e2d2f32148b86aa77c384e769c2e433e0aec4d8ce567e66e19ee. 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/JPB600869603.
Circle of Life - Violin Re-Connection EDIT.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7a04875b23ad9d16923e3edcb951f4ef0bf9b677ac0ab793bfc41a797dc8776. 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/JPB600845102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9f3ca9ac212ab844f7928ce361fb7fbd1c9c8a514fb55bfcf337218032f6742. 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/JPB600844905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbef1543bc7b8cf6ebc723bd22c722a6bc610cbe26a54faae0a1d3e15a1a57ed8. 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/JPB600879401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ce1254d5a7fd89d50549c7a8d9216d01ebe23eddeb95caf2cdd0acc6283311c. 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/JPB600869710.
Fight for Justice - Individual-System NAGO ver. 名護啓介セリフver. Justice fist
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b66431ce538eef25ed787472ba7b8c717c3b3a30e274d9aba37f6517ba6de43. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/JPB600842003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45d539872bd6610ef675f79d838eed7b964a5abf36bf2983e6f8111548a57c88. 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/JPB600845101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7a04875b23ad9d16923e3edcb951f4ef0bf9b677ac0ab793bfc41a797dc8776. 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/JPB600845102.
劇場版仮面ライダーキバ オリジナルサウンドトラック