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 0xb38ec452d82b6ad3a9a6d5cb0f0bb5db2ec48f1c1b935e46133fa4d75f6b806d. 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/79f7c28c-54a1-496b-9350-6adf16d2ce2c.json and https://artists.proofprofile.net/proofs/artist/79f7c28c-54a1-496b-9350-6adf16d2ce2c.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 0x05ec7cb0cadaa325f8bb33779bc9f8e01b3ec91d9d37a9aa350fd67a5ed13caf. 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/KRA382402746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47b34bc4ee1170d6c9bc000f7fc43dea7e4ff6ed194ea9728b411d20f203e38c. 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/KRA382402747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb187c403abd19911b38137fa6da576b99b1898ff7d44afc4a43565ec6c76dd45. 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/KRA382402748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d5b180fd94ed11471ad243f45e9779cbfa4a8e3607d8217909b7e3202f605ba. 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/KRA382402749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa117d5bb9bbc94aaaeced888d784c47d02eb2a0ba662ae4a80bcba324fa0c75. 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/KRA382402750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa064832a39e8978c86f61b8c0133b610b03c49daa18077ad9d4f39e92c5ff4c9. 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/KRA382402751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa606ce3b48e93cdeb7bc643dffe3b0cbe6aadc06d28321266eea4204640349e8. 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/KRA382400340.
Decalcomanie (Veiled Musician X Solar (MAMAMOO) with Jangwi-dong)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x961fabff92d3b7e9cce4ae34dd4ff7141ec40c9f3022a583212ad0cf9ab1f2c9. 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/KRA382322202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2064d7ffa19781b32bccf406c91f38b5fd315fc687e680a60a07095309dc0048. 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/KRNAR2338710.
Pandora : Beneath the Paradise, Pt. 1 (Original Television Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6949cb79661da7c8ceb804ab98ee0e3ddecb572bf528d26a8a6f89618031557d. 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/KRA492300227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ccbd2b704e744e97828994ae33db44f0e42014b9fbcc4f1f25e7be9c909bd9f. 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/KSA012227546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58500529e6d5593ec6f4ad39bcf2248ee80ae5e62dafe74d31cde70e34e14838. 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/KRA382208066.
Kill Heel, Pt. 4 (Original Television Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x677c9e7f3a9304517d03816656d8b020b2eb591a93d31b54600336be2c80a18f. 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/KRA492200281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc47668b4e26aa5c988e963c1dd46629b03ebec0051c419b5e86b10373fad033. 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/KRA382203887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa99c1e143d2feb40b6d022730981ab3abbc54dd480db409f78307fd94cc1c3aa. 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/KRA382203888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe26a61a34043e3835e76dcbdcff114e5ca4a4efc0ed6be1755c502a6201c25d. 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/KRA382203889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91a7abaf22a2c1f18e09fe471b174e5a65c0abf3e19359c6a7ed6c6d5448b54c. 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/KRA382203890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfda48a9f478306a378439e995cff9c8f6397320a9a38270f908a49266ac962e4. 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/KRA382203891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8adde908ee6be43d50e4feb5798244c2122547ab94cff06e4f4588a1be5f33dd. 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/KRMIM2134107.
VINCENZO (Original Television Soundtrack) Pt. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e5e588fbd54bddba85e1888de02226ab0fece3ea2e5e49e1a9c406a6c3d6836. 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/KRA492100255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00e5b80381ec4431e6aa9991a63ad0b36d117fea55fc619e6f1d16d355f56ac8. 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/KRA382007073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76e931ef7c5c5c8840c9673bf42a1a4c901d2c479efe956dcdf3d2c4dc3a22cc. 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/KRA382001292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d104fcd4da0d946a6f0a40776ed1cd0d8135df37b4172a5b9147d22e51cd229. 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/KRA382000000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3e9a2f970a42fdc9ad88c3a4ab17597713b06dbe01569d19d68bbf1023813e0. 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/KRA381705108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d9ce3047226ae3edbe57a0fb2e199607d3c1b76df0c1b8a0356b0df903002ba. 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/KRA381705109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17b6c115a0eeb162a5f2cf391e89efc7929503c62d216ad9c3f4c44f996a85bb. 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/KRA381705110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00acadf66e96f8ac555d56fcda0e453ed5ce45636cfe87b1074116eb9f5ed51e. 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/KRA381705111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x014e9098033441c93037038de8c32f6ec45c5df41df61f5d3174d8175b9ed445. 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/KRB921903535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3509acb80a91243b2340cf2171b3ff1f44a3a8ab5b55d7b8b287a02b7ccdb3d4. 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/KRA491600447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaec91db5a372afece57d3c2145340311571f21fe63bd949c4704c3a230c2adf6. 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/KRA491505000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c8721489223ff004707d92a83618d51a74fecc536e3321671891d748194b09f. 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/KRA341556669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8360e4ad291f733cbf535582e42de16d4fc683324d92f93a7d81a1b9ef0a4fc. 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/KRA491500898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacdd651a7e458b5f678c4be5911d2f61c11e067077bb24863a11da7b1baae58b. 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/KRA491500793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x343e75ea26f766fff6f2ddad7776a12a26954ca20deac93b3c1769b26b6bdef5. 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/KRA381210840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbb8b8d35d8c4509ef1f38f3c2dc1984fd09b0051be6f83468a8f03876e69147. 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/KRNAR1603001.