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 0x0a9aad63f1285a20e27dbc9c4d77ade64e3870148bcb860d39f88365be4cf8ee. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/15034436-a4bb-474d-99ac-768c3b6c590e.json and https://artists.proofprofile.net/proofs/artist/15034436-a4bb-474d-99ac-768c3b6c590e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Yuki Yuna is a Hero: Hero Chapter Original Soundtrack
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 0x62d147f957e527ecc018378f75ce07a1ebc6c428ad0fbec93ce9fedbcedd4562. 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/JPPC01800479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf18222ddaa6339c03b6b9f9b0cb74dcc82354315658d77d4072faa4b35625227. 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/JPPC01800480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2176cab26d9eb62feee177a10f999a7fb6061b986a4b1afad485f6cf8f0dbd7b. 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/JPPC01800482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x913f513c68c088b5cc9b8b7861f94139cd516dc5d944c979fefcc13fa4145916. 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/JPPC01800483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc65ede19aefc00d6eca9960948ccb12c56735577c20f1fed7ad5b036d8dc52f7. 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/JPPC01800484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3e8a3d1f58c6371096567a504788f6526a83092ce6c4afea43c3514804bc20a. 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/JPPC01800485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa382233c7d677e6421953bdd2d8e3eef45ea955769598dd037b9f45cf7ca0043. 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/JPPC01800486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b9e0699e51e108bafd9790adb17e0d541f6c9b4f61c004d56cc9305f8c01f5e. 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/JPPC02110986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x578a5a90486bace17f6ac3aee6f62c78e06cd55e3c364e2ce2c347a1501337c1. 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/JPPC02110981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89ba5836d85c8a063ee7553ce1cd40eb0d7725ab63230742d330a80b9e9ca0ff. 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/JPPC01702386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ca0aca59aef15b91033eb1454058de5c7a609ed4e4f1aa633969272e02d0da5. 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/JPPC01702387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bc62ed579d26dd799cba74581d1bc317cf0d448da3a8dd48afe570d9342a90d. 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/JPPC01702388.
Yukiyuna ha Yusha de Aru Best Album "Yuuki no Uta"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3b40bcae518cd5755fd0e550cc3a6cfa0a770500340d0afc0cae3234f0d4862. 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/JPPC01700354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6987aa47421f587a15c9233dae8e388720f71e6a860e14faaf6938a3185760aa. 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/JPPC01402246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28b32c8ab81b9e7cba1a6d32a3f83e5d793ab3ce9de1effcd176c3285f979a65. 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/JPPC01702000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe398d8f651f05b4c3a8df00f6f12834acbf8efd8f2f6bb5642d64ba769e7efc0. 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/JPPC01700210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc95a742a301c7abd984da186e6f2b01195399d130804ed9bec0a61a059203304. 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/JPPC01701251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4f93882fad85a7131c57a7198c8dc3921802d3f227f8f2d1d3269f8e60d1253. 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/JPPC01700368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcd7a1132a7fe4f1cdcba2e6ed2a33bbe1c7f5f0a6c098b3b1ecabef239ad784. 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/JPPC01402542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb232f25546f9f5a4433cf5267fafe6e6177d89b75b108f87523f9cf7d5d27a11. 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/JPPC01701264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46e3515622cdd5b0b7b7e299f371c1235d5842f2edb490070ed2eb094545a344. 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/JPPC01402279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9861b3e9476a22fa0c0f9e25eb4b36050848eadfa401dfa7773a6ab407534e0f. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/JPPC01500359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89ba5836d85c8a063ee7553ce1cd40eb0d7725ab63230742d330a80b9e9ca0ff. 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/JPPC01702386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd831522ae53898ce3669b30299f2f289c4f864db85e5e2154a348a22ca2d7555. 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/JPPC01600326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3e8a3d1f58c6371096567a504788f6526a83092ce6c4afea43c3514804bc20a. 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/JPPC01800485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38eb0f45b2c34f59e9ed62a27e61cb391d447e4beae14e0f687970b2af5ec89d. 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/JPPC01600327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ca0aca59aef15b91033eb1454058de5c7a609ed4e4f1aa633969272e02d0da5. 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/JPPC01702387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa18507940cf5b6d45b95f2e84497b96b96c6abbc48995d7c5b447a749a42a8e0. 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/JPPC01600328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x293c8b0f4d954a6bacc9dab39869048bb11f236828bb90028d6ba4cb747c667e. 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/JPPC01901712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b65bdbe633a09d3703272c361836f0e6559edd0e783d6b1d159565f063211ca. 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/JPPC01603064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d2de6757af1749902c790a763cc36dce5ff893a97aff40c92230d3506a83791. 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/JPPC01901713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15a5ae994dfd1a83a1ce3300d885b42e74931a4e4296aeb212b851f92172dc5d. 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/JPPC01603065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68b28a17af5f793b5dd5548dad739ced66f2997d8b5cea4b63ab40f5ce8f00c7. 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/JPPC01603067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x603dfef551e0da783b1065f1a0d7a2d8a3aac2c82984088ba98116c3d7443c3c. Chain 2 (Bitcoin): anchored in block 957056 (2026-07-07T15:15:30Z), 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/JPPC01600329.
Yuki Yuna is a Hero: Original Soundtrack Outtake
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5559eab7c8c15eab436a72084610e0de9c6717869a1f4d0077d445153f28c5b1. 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/JPPC01500342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9861b3e9476a22fa0c0f9e25eb4b36050848eadfa401dfa7773a6ab407534e0f. 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/JPPC01500359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4da6a5e6d330377c1b1c0d57e8d1d1c4118501285ab1982876766b9ba9643c2. 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/JPPC01500362.