1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x1b4998e5b3966a46fa8922cf2103d17d6d9d3283ecf3aa99208e0d47173795fd. Chain 2 (Bitcoin): anchored in block 953791 (2026-06-15T13:40:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/df97c5b9-9be0-429a-b6e2-5b9f2f872782.json and https://artists.proofprofile.net/proofs/artist/df97c5b9-9be0-429a-b6e2-5b9f2f872782.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 → block OTSBitcoinBlock must exist at that height 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 0x5a81e6a0fd1b30d1c8d7e737ffb39a50b2994e4b816970b1610130bf55ac6632. 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/JPB600304701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b89a7cdc3ce7696bc36af8b5e9a7405b1f670c0321755fec463958fecd3b46b. 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/JPB600304702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f3b1258c888629db021650d96faf1e871c54ab4df920b9e4c049a45d28fd1b1. 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/JPB600331301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b47c9360f34c2ecfa66b089b810fba7f454fd4079af5573bcea449827282e22. 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/JPB600342701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacee75d60ba07ea45aa3bd6ebbef6859b16363d8f21e6ac2953b23713f1cbd23. 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/JPB600331939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2efc439eda279880297b8bb4a927cc4c4f902cabe69f1836f9718fc00250be4b. 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/JPB600342702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ce0844ad21eb8390e00ae9d58be0e04038299c53deb3ae4bfbf30ee8c3fe843. 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/JPB600326602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5f3680ec60e63ee3a54c5d3d68285b0e7b8a49d13f5d808d2938b8226ee93d1. 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/JPB600356401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8840a9d5f4fe4fe2621abc46dc01874f621d4077d4bcc785b8bc26aa4768ca85. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/JPB600382601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ed6d82ab7c82f91d443a8d49af2f4ea8481b8106d347fba5c83846d94e83100. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/JPB600382602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd044b5554b86f5b718d133655c10953a358bdc7fac5f78edf93a456095853a0. 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/JPB600356403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x137525e6e78bdef7e092b7d4efede4af7bdc27e2bf65b749ee9b04fbe4a4f5dd. 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/JPB600356405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5b08d72ac1b56f109f5a3857198b3e766fcf426cee681789b82474ff06439f6. 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/JPB600331938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4df416239a9f299db186bc86dc6408609700525a95b991a9ee9ea0bf689f5a9d. 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/JPB600359910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fbb802e13f249f702435f6bb3ee4c9cef905b207264ecb6082a7e43ad273aed. 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/JPB600382630.
仮面ライダーファイズソングコレクション
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a81e6a0fd1b30d1c8d7e737ffb39a50b2994e4b816970b1610130bf55ac6632. 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/JPB600304701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ce0844ad21eb8390e00ae9d58be0e04038299c53deb3ae4bfbf30ee8c3fe843. 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/JPB600326602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5f3680ec60e63ee3a54c5d3d68285b0e7b8a49d13f5d808d2938b8226ee93d1. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/JPB600356401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd044b5554b86f5b718d133655c10953a358bdc7fac5f78edf93a456095853a0. 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/JPB600356403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b89a7cdc3ce7696bc36af8b5e9a7405b1f670c0321755fec463958fecd3b46b. 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/JPB600304702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b47c9360f34c2ecfa66b089b810fba7f454fd4079af5573bcea449827282e22. 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/JPB600342701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2efc439eda279880297b8bb4a927cc4c4f902cabe69f1836f9718fc00250be4b. 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/JPB600342702.
仮面ライダーファイズ 3rdエンディングテーマ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2efc439eda279880297b8bb4a927cc4c4f902cabe69f1836f9718fc00250be4b. 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/JPB600342702.