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 0xb17e8dcb0e39dd938ef5bd5285dfb59d50a06bbc4ee77f64b0d9d9e4f1a40b91. Chain 2 (Bitcoin): anchored in block 953727 (2026-06-15T02:33:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/911301f1-51c4-46f6-96c6-ab468339891e.json and https://artists.proofprofile.net/proofs/artist/911301f1-51c4-46f6-96c6-ab468339891e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
DAE HYUN 1st Digital Single Album [BABY]
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 0x4d6d6eeea133ba2dc7e1a051121d10b39a66be9e1e17c0f95769d8c9233ba41b. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/KRA381802091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fe5cc51110cb4c49939e09a205f477dc021085ae5dd18e9c8fdf15f4d10a08a. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/KRA381802092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3d3f51a8415d381884e1ffac4da7b8f10ec9029e6c549e4ff0a0653672679fd. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/KRMIM1905667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda655457596d38170191e53976ae87a6739bb1e368c6abff748964a843ebd83b. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/KRMIM1905668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb5b85e00d5427ae29c6bc96d6b64d6475f5e9e10ae7c86c60e602e3cbfef2b7. 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/KRMIM1905669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x588ecb25657f78b6819467ec789edfebdcd2f8462e163d8de11c2b750602de0e. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/KRMIM1905670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5de3e67b1a995edd49c64240f09b89b43f071c3fa237120e10db0cd5d41184ac. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T01:47:42Z), 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/KRB471901363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x618b7d9cbf6b177656a7bb8932322e3507618cf57fc59820b806e0be960d56d2. 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/KRB471901364.
Sweet Munchies (Original Television Soundtrack) Pt. 4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb654b79618aa722d716c46e5b817bed3f8e018c1d40371a8b42a4936989128c2. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZEKE2012288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76da44f5f68a62e2832ba3a22617e6627ca3f197072f77e58298d121ae400dc0. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/JPL370900125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5397cb7914cb979f3c6cd9b3f008f751aa5dd8b6a69cdea9246070cb5113c678. Chain 2 (Bitcoin): anchored in block 960187 (2026-07-30T01:34:28Z), 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/KRA341415824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaed77e6b18924a580e1bc3f4bf18f677afdad25e611b055bc6b904aff4df5b6. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/QZEKE1910674.
I Remember (With Dae Hyun) - Bang Young Kuk Solo Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07820fd87bc93bcc7fd82c2ca90fbed51a5c9f770faeb19ec1a06ca7da65e387. 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/KRA381201316.