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 0x6f92824e4aa923808ce4ca5b3dba522748045813e58d61a1ef005a030b71d53c. 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/8571411f-8626-408f-afd8-ab4e00ada8f9.json and https://artists.proofprofile.net/proofs/artist/8571411f-8626-408f-afd8-ab4e00ada8f9.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 0xe210c877a0aba7e7adf4daf0072cd19bdaeaad3cb6425d8c00ab374b5392c463. 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/KRA491900713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dfd9ec4c264030aa5d60d01178a085a7a2c88e8e077267e223417f66c8cdefa. 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/KRA491900715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f9b604f189557fb8379576791f79a85315b95260d109970b9469e28c530058b. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/KRA491900717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x645afe5cc88db8605f03c53c939750aacce769d86ce465aa5b8ddadda3afd1a1. 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/KRA491900718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x733324daaa11a47030f33154ca335ba03b79c1aae55940ceaf609a133b7f571c. 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/KRA491900719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e2d6e7ce72907d7abf84994e8483d66c5d7b86f791ee3f5cf751871642359e7. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/KRA491900720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccbca1d4276a9436ed0cc14189c5c68889ee1aed6683e85d99f8f338bad186f1. 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/KRA491900660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c159f0feb55c861cdda5393a0e8b86bd794b989fbdfdc23588696a77d528881. 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/KRA491900662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaf5f470c07c546cba5884622875687c29b81ae1484db7cc891d6ff59ae69fb7. 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/KRA491900663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0e16822f04d4465d14d6690a83736307271a8b2cd87572db8cc3e3b02ca7fa4. 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/KRA382203023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd3b74da111164f1c72835062f36c1ee0254ed3cf750ed2973930579a4f02a65. 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/KRNAR1710258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9432aa5436f3136ba166ed4bd58902fa6df6ff09f3a3e85babd6f6b853d28025. 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/KRE022100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1a515e668f1b9ad7cade4bf5de0b637f331e95c1a56948e51b2ff979bacf49b. 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/KRE022000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x714c62c368b9d13f2fedc1a62187d663b866d07eb202aafda09b6de712d8a91b. 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/KRC531800007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4284128852396f65df04f0db23752ac957ab7b0bd5ae07c470efbb97e39273c3. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/KRC531800008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f3e9309e739a7b7ac11cd4d4d4c4b74c8f51e926326cb6cbb9ba7002f81a092. 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/KRC531800009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x619350550127accc18769633fa151568f50aba71ae186ca9dbfb0b3e440a2dbd. 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/KRC531800010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27a4d75830caba095e975b4ea74aa71982690a8b994a40ec47bc225075eb488a. 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/KRC531800011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeed565a13dca67d1ceb9bfee8a1d4945e0ed4b2c054193cbb2c0fdf5938fa7d. 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/KRC531800012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52a5e3760fbabeaeae0643d695d9a5ce69ccc3e35a4f1cf7a1b46fa0845456e8. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/KRC531800006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29f3a7e94a2bd8a8295e016992b8bb9af819745455d4202f595cc121eaf7d031. 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/KRC531800013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35408cdd8978d30b115ee10b3147aa587288bfa0a41b2b5ddee5a4215b013b8e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/KRA491600362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a011440c09c78ebdb44b7a6481b7aa29fe577185459ba9974d881a0dcaef4b7. 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/KRA491600363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb07cdd7493200ccb77c4aa1f391b729309f96ae1bb9c125c08795faafca6da52. 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/KRA491600364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x158cc88a99e69101ca60a8cde6feb8e86e1d4d3e4dddd504197d477a7bb77878. 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/KRB471404483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3875e38dfd7716f4b8d2a07d7108d7bbe8252c8649c39eba9f75c21ff84ed6e2. 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/KRE131800047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbf554d30d80d0ccc7f5b3565877aa437d438992dd990907b480205e64704787. 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/KRA381602131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6ae80e762b85e5fe27c96b47d5ef5439e661acb8d9150e92f5da3ec92ba7344. 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/KRA381602132.
She's The Most Beautiful When She's Not Mine
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x113a0958114bd5cc26bb8bccbac1662b020f376c54db914ec27cf08556393826. 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/KRA381602133.
REFUEL (Feat. Jung Jinwoo, Khundi Panda)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x148e025b6bd654571c985c2eb0d666a90cfd529a944b2e11554b11ad41284e28. 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/KRB472102050.