MBLAQ (, ; an acronym for Music Boys Live in Absolute Quality) is a South Korean boy band created by South Korean singer Rain under J. Tune Camp. The group consists of Seungho, G.O, and Mir, and forme
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 0x65d3cdac7b250dd27d71c2816f9966b9a985cff402151504ee639b89202f4d3f. 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/f63d8cbe-65b2-458a-9460-aedde43725a9.json and https://artists.proofprofile.net/proofs/artist/f63d8cbe-65b2-458a-9460-aedde43725a9.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 0x961820f25bae1a8706e5be9886ceb03c937d42b7b97a4f4f3eb92a13f9511860. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T03:02:19Z), 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/KRA341526018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc63932296116585e5f179b3923efb4247c9ce900ce04808a46a8d1649dbcc714. Chain 2 (Bitcoin): anchored in block 958678 (2026-07-19T05:59:57Z), 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/KRA341525971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9716c918754d809791cbf9dbf30b9a6b04dc1cc864ebd8a35ac5ee3481fa5f0. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/KRA341525976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1088e4b2064dc9abf6da1498f84e810939222aa9a030ebff455bbd89913a94db. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:52:38Z), 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/KRA341525977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf182808a1d4c85b3157e172db8be3b2b2e2dcca30f3d71347a0da860f9387591. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/KRA341525964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda7ae8b2a0f0efabc947e7bd7548be10c21bd1e9a950a62030ecb0f8f36f7ba9. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/KRA341525963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb34142589735bd237e32897b1a8e186304c72683a545998157588bcf7f644a8e. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/KRA341526032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92405fbc5c03b9d8d66ba2a3209fb2306523ee5ccf899f0f234bff72489ed46c. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/KRA341526033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7ad45aa89aa3ac819d151abec024c0782f0ee463515efbb6c80113cc850110d. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/KRA341526034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cfaee5d86a5491b0b1bd721f7336e4cd343104cdeb724b93aafeb3399b182b3. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/KRA341526035.
Scent Of A Woman (Original Television Soundtrack) Pt. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d41a0734e6701a16c52a407800191dd6d5fd1b948bffb647536a8e1935bea94. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:22:01Z), 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/KRA381001851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a6643babcc5683a7c566a55ad8406a17aee6b5794a97d044d0bdf339814d196. Chain 2 (Bitcoin): anchored in block 959003 (2026-07-21T14:43:27Z), 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/KRA381001852.
Scent Of A Woman (Original Television Soundtrack), Pt. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa60c828629054f0ed10079ef24a68ade51161a9a8938a102249ebdb8d1ae81c4. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T22:45:51Z), 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/KRA341526000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c3f1f9fc95daed31170ed7f19faabddefa85af471d89cf71b17a23693c5fc51. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/KRA341526004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9ed0ffdce7bad324667891e908e37ea7607b1c3b619a4cc5f1888810e2b54fe. Chain 2 (Bitcoin): anchored in block 958720 (2026-07-19T10:53:46Z), 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/KRA341526005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4e381b53adf60198de496a701e8728c2d3483265fe5ec5c9e27a963b229595b. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/KRA341526006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca8e8aee3de13297c153a7696f30e292b50c396935f3b1b40874733b56a5d5ad. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-16T00:08:41Z), 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/KRA341526008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cee75cb5d286eaabf8b15647292de06b5e0d0b990bfcf4cb8d84bc008790319. 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/KRA341526010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x151177d6f4a7942070317d4cd2d31dec2abbf867d3c0223165dacf62c7043853. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T12:54:58Z), 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/KRA381201175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96ea6a84a778e6accd5865594e93a3d69e9f9b9529ce6cb63c0f0f629e968b99. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/KRA381201178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d5d67aa753a40fd6a80f5269ae6c1aed217410a487cddcbbcde7036c6c6513f. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/KRA381202510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf78ad471d9628a5eb781e4077f981806c9b02437bfcbcc670e4b200bfbf126a0. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/KRA341525992.
Tonight (We Got Married World Edition Original Soundtrack, Pt. 7)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbabf5429977ec04947150cfbd44039b2824a445db78ffebd296146787064f668. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/KRA341525990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf53240e9fd7ea2db58aa4ee1e1eb342c8299198e29c6370aea588fb05d99d8ec. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T11:32:29Z), 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/KRA341525995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09150d6933fbd7ed18c49d56952c072c705f0ccda1e544f97ff060cf86398e4e. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/KRA341525979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfe5d320e83e7de634c8a08a660119e0b9d32f905c5fb5e12d5f3eda8f448484. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T04:19:18Z), 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/KRA341525981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x987cdf22ba1a232230045c0ed270b8916958cda11980411cc5491c1b4651e98c. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:23:54Z), 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/KRA341525982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c89678162d19aeb2ab776d0231652814a71a7ba3303177a5a6d4b827c4c629b. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T07:04:00Z), 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/KRA341525983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x772968279fcf2d91c4d50483cbd2692b2ea186d1b282072e58004c93aeb1a074. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/KRA341525984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70303b3baa7197f83f486b178b5ce6b7a4659eb6ff7bbbdf1417953507274a71. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T04:01:08Z), 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/KRA341430899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37db448d1b1a9e7306a8239c250f19c8ba5cb8e3725b6d010f6396b82b72a96c. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/KRA341526025.