Ladies' Code () is a South Korean girl group formed by Polaris Entertainment in 2013. The group's original lineup consisted of leader Ashley and members RiSe, EunB, Sojung, and Zuny. They made their d
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 0x57819c719e9f0683d2b035faedb0ce07da959e4e120859b95eba1082dfdfff34. 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/24d6f590-ed96-4556-8af4-55b0b0705a0f.json and https://artists.proofprofile.net/proofs/artist/24d6f590-ed96-4556-8af4-55b0b0705a0f.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 0x38551707d5a237943df3110ddf566b68e30386c8ada2030cdf6f25df3e47c255. 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/KRD351900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6219eaaf31643c30af5cbe86c58e00f9379965f7ace0829b645e254391dd1953. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/KRD351900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc9a9e392f79fde7af67be2f090c250fae6ecba976265bdf604818430857c6b8. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/KRD351900006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda4c035adcd74331541b04e90f7bf28acc624704a94d31a51dfdb9eee4dc9170. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/KRD351900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda4c035adcd74331541b04e90f7bf28acc624704a94d31a51dfdb9eee4dc9170. 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/KRD351900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd73c254a8fb97156ab2390709b7699f413af0f487d298778b789a4c08052afe. Chain 2 (Bitcoin): anchored in block 957253 (2026-07-09T03:08:40Z), 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/KRD351990001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35807874e3f0d806df802edc083ecd287cba2873285419156c91d7d0a165f50b. 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/KRD351600003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58b09edbdb4c4487335f7d89d43c653115bdbf87449a185f0eccba106e65fa0d. 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/KRD351600001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74159d08fac0d4eb59f0bbf693d5223e6a5c6ba7fd2346321c1214fce06c83aa. 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/KRD351600002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d861e02e7b5c165cdefa3ac9cf9cbdbcb7dd726daf8ed9535ccc8e126980103. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/KRA341615612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9da89ac5440fbec0b413f2717e74bd6a6b18f2285f5772f924d8e7e60b15bb29. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/KRA341615613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9da89ac5440fbec0b413f2717e74bd6a6b18f2285f5772f924d8e7e60b15bb29. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/KRA341615613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe21f671d5097fd02e9c2701cf6f7265f50fda144f46a54ac514ec3b832d70c53. 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/KRA341609369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09917d78ca1e407d53e71520c52c0d5baa15db2df24daf8d393768fae054b5cb. 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/KRA341609370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2abc89f4652a8d81f81f16d2e15cbcd00fa103ac605e11c0916205ee4e0c9785. 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/KRA341609371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d0e90b0574ac8142eb766c0e73fe7476e7949ff23c0790665a8cdbf9c06787b. 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/KRA341539228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x530bba15d355551f9f36cfe4fad510b3344f7e362c288304fb0fea98e49334bc. 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/KRA381208611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2031900d67ff94481bf6909b60ecb57b9bac7cc55967840fda02981e0df7724c. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/KRA381208612.
Flower Grandpa Investigators (Original Television Soundtrack) Pt. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8006f2711957273447e04fc031df3d42528837ba184fdce290aa9171285e1e0c. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/KRA491400728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03c0dba1328210eec1dc9c88a5ba4497e4d037f13c4d244fc2fac57eccdf70e2. 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/KRA381206133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf6444c26c4bb30314573a0c69486343777f6dc9c7c3306c49aa15be0c129349. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/KRA381206134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d072eb9b755cec00d5c41118747d9fc88fecc2f9f6daaae7a9339450ea6e888. 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/KRA491301046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81edf22036bfb1ee64f422d4b1917867fc4b138cdec3dc6ed53999c1c5124c6d. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/KRA491301047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6bc02c22e6247cad2bd4f72adf0e718858115d9143b09125f7f3d5a0c4ac554. 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/KRA491301048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8be909ebda15cfda6f52bdd1a3da0d728ccf07550138ea29f3310221ba930049. 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/KRA491300897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3862fa8689a595f6d8a5c708e4064e6ef3c74b9f09f3b96410ca7e9672608c77. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/KRA491300138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf2cbfe856557ee92068bab35532941cb01ca0ed2647d940d2eea16e160d3f77. 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/KRA491300139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda9381949e3be744bb296efd220f98c42b8a8a664b8b149ad64e0eca24fa8514. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/KRA491300140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47a030dd80641b8cfc2ee28e9550874dab571c4540362c94775931300352e470. 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/KRA491300141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae5613ac8ff18adc66cd8e055cdc85af4e4ecc6057e3583fd3e6485a880eae7f. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/KRA491300142.
Sing For You (Original Television Soundtrack)