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 0x12e7017fdbdab11af3a0a2afe3c0ba4d01a327f61fbb6c3b45fa9a72e2aef01d. 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/584ad713-b8ec-425e-b422-21c5c360cbff.json and https://artists.proofprofile.net/proofs/artist/584ad713-b8ec-425e-b422-21c5c360cbff.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 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 0xf7d571ea73844f599cc354f242d125c881e71581025bc0c730db9f89f832d1ec. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/KRA401500124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e9b2c37099ce1fc36d1c3e858e999753f4c9762fc320756ec1ac50966e53fa9. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/KRA401500126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e609ab5c0761492d51d56a5ce72128d3d49031ed329d5988cd82321041add63. Chain 2 (Bitcoin): anchored in block 959026 (2026-07-21T18:30:46Z), 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/KRA401500128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x859da1065df137de38663f684dcab40805bdb8ebead4f68a35dbbeb9bbef0d78. 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/KRA401500131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6166270ece52e3e2f24ce3b5c8838a56aa446170b9d27c5f0beb153b9674eb6c. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/KRA401500132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ea63a59d9472a97f4e2956771f3d2e52252e3d573266784c2f028ffa259c8d0. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:07:00Z), 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/KRA401500134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39d569ac2bbc24fa4ac631026d4cff4c280ba8d1e263764752f5041345feead8. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/KRA401500258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1200223d3868a34d76de6e5c7c6d49499aac36f7eb820b211f34fcaa006a7262. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/KRA401500375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddc536af8fbf1bb7605c85e9091d3b8df9bca1e8f04254afaba750185e1e4004. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/KRA401500382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed7b4ca65b44c00dc41841030c5f6036fc19f3090e4868d327d0b655f73fc6bf. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T02:15:58Z), 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/KRA401500387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8c8ba2df2f7440e8629dad499e7295acb966851abcbd583cf836287e926fca9. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/KRA401500435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a9c499a23ff61435454b131c4ff048c3666fb09371a51139b932b633ef4441a. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/KRA401500438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ce3efe1eaebe6698594cafcc79a37cad3c006b4d7c4632e163702a871bac7cc. Chain 2 (Bitcoin): anchored in block 959015 (2026-07-21T16:45:07Z), 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/KRA401500445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a2a08c48063f42e2687cb72cd65f45792f00c7dcf603ffd6d47829deb40ee40. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/USSP30900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82f7a38486dc24c9439c7d32af4d930bc6f6c7bb9d0e6e01e778528efef5528b. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T03:48:36Z), 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/KRA341200408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ae6d5bbc7c8367499ca1c0b03ed46f055718622c040857436eb62275c14027d. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/KRA341200410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2689fc94296ab846cb744a5719eca53c25cb4833aca96917e46dbefbff178b65. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/KRA341200411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe046325847daff6615628d22999171f564b89bc9546b5cca8691414131ed6f49. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/KRA491000084.
SE7EN 2012 CONCERT IN JAPAN 〜SE7EN THE BEST〜
뮤지컬 엘리자벳 (Original Musical Soundtrack) - 그림자는 길어지고
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8465811e882b19f6f4154ca0e1796b6126d9bd93612f27702c4c8b095fdcc091. 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/QZEKE1929392.
MONSTER (Original Television Soundtrack) Pt. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a54c24410974f78ca5e14cd7638c60a6208c23d00b1110eb8497132d0ba3c16. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/KRA381602003.
Look in the mirror (From "SHOW MUSICAL Dream High")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18ce8a263e7240c71ba5a286736b8cf23184cd49fd78404ebff04292ce53cd94. Chain 2 (Bitcoin): anchored in block 958625 (2026-07-18T23:11:57Z), 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/TCAJS2568674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x119f33281b3a3c5a4e4c944028e3a5aeeb9c808556fafad9541adc39eeca7329. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:41:57Z), 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/QZNMT2557480.