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 0xf33f08477fa87ba78e727117a21e37bc6fdf1a2b8a58173235cc70f7419ccb3a. 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/3c54641c-d260-4bb4-aad1-6669b6edc433.json and https://artists.proofprofile.net/proofs/artist/3c54641c-d260-4bb4-aad1-6669b6edc433.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9ed56df53d1fd8c66b830325d3f8633b3c86a8689b62f2614fd9073fe18b0be. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/KRZ291932565.
USB (U Said Blah!) (feat. 차진혁 & Lee Young Ji)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x496e5d1f930d73f908f08afaa93a5439fe742483c4107183ef0255e5475b09b2. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/KRZ291932566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3385f042a4f51c298403876e13a74df6a3f5d87649ed853172ec0a8dedd0280e. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T02:05:17Z), 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/QZF452011290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4a98dd2162b1e806891a6b173f4c380c11b9838401bdf84565f66e8a451a049. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/KSA002402747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2aebea391916847e5ce7984fcaf6b10d0a6669c5c8353cddc76693c87f06abb. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/KSA002402748.
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
빌어먹을 MEGAMIX (Feat. 허너버,유리안,아이오보이,루시갱,이프찬,레드레인,김단,릭프레디,유명한아이,김연,스카이민혁)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17785b443bfce5e4bd52766238218e4cf8a4084670c4526ae84bedb8caa4b047. 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/KRMIM2482166.
빌어먹을 Remix (Feat. 허너버,유리안,아이오보이,루시갱,이프찬,레드레인)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x943945c8fbdc5dde67ea82149ca910b1590dd776809c23f28a6f3c4cfc2e4fae. 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/KRMIM2482167.
빌어먹을 Remix (Feat. 김단,릭프레디,유명한아이,김연,스카이민혁)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9aad8537328bf5955ffcc17c267f0efbe5120f6e6e849a4445baac83e6009c8. 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/KRMIM2482168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc85f286311e0a5c4d8f31e07ac2780ad57cd2011cc0c7e04a8cae85642888dc8. 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/KRMIM2441880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75d626de8720940eafc446ffa5438e4eb0dac40b1f85ba0f8d452550188f6249. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/KRG032200027.