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 0x2b0111c3421c10a2163b6823db30fd76d82041d09ad5ef3c9b2d5e3a7c215d63. 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/0b2b6f89-d411-4247-be8a-ecdd8c2a765c.json and https://artists.proofprofile.net/proofs/artist/0b2b6f89-d411-4247-be8a-ecdd8c2a765c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Extraordinary Attorney Woo (Original Television Soundtrack) Special
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 0xb187b468978f237a27a1dbf84b73217679d6aa5c5fb6b9b57f5ac5123d63a55e. 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/KRMIM2247096.
Woo Young-woo, the Same Backwards and Forwards
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe56221ae78157f582cd0b12c2d04dd1c2ca6872261d8a1ae685ae6640b9f3b85. 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/KRMIM2247097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7053bb37e96af2a58c3e12c4e076eea91fd035847016241322bf23d2ae620fe. 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/KRMIM2247098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x184b7d9e350c76fb21ac377c3090a99b9281a8fd9c6ce3038de5fe094fb39508. 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/KRMIM2247099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c6652f649e5ef94d31eba7d6013d29165182b3045b1b7a6e7de2b6c99c55b52. 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/KRMIM2247100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aecd93f46b9db365ba60d23bfac1918d23641184cdf124ad674144347e5f5a3. 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/KRMIM2247101.
Young-woo's Heart (It's Hard to Read Your Mind)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39caa1e9ea89777a8d7bd3e1948f663504e274565245f7df661239900c217e84. 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/KRMIM2247102.
Junho Being Brave (Let Me Be Your Hug Chair)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6fbd47f6cc2cf473c90c5b8df8b0596eb63252bd0e98c90219f60d26634cb73. 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/KRMIM2247103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18ee883a2da0fc83276dc5c03588ed61bdd09ff417ee5bf86dadb652f2e41559. 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/KRMIM2247104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42362136ce63db884988a8e95fab431dfb28a283de7e6474fa5f454310a70fb3. 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/KRMIM2247105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc43336ed6256fa111a6fa5d554c6280bfc5279361eb27a251654104c1a22844. 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/KRMIM2247106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d50def3c076c67fe843b5b4dec80c08f5164c98898ef15d4c08e7e52f040bf1. 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/KRMIM2247107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bd0a2a249cc3e7bcd58a4e8e2ba140cd7ee875e7cd4538b75267618b71024b3. 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/KRMIM2247108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x692231f61c08e85c04e0542f9ff64eed56ae8e23977c9696917010649eb2f847. 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/KRMIM2247109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a63cc6e2993d06ac7726712f26940a81cc7ef896b333161da9a59a977d9644f. 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/KRMIM2247110.