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 0xcdb0e92c362e63abcc386d0ed14b52adc9b88ef8b4384944a5db599480a30d84. 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/aed35966-568a-4c00-aba9-8caa2059b33c.json and https://artists.proofprofile.net/proofs/artist/aed35966-568a-4c00-aba9-8caa2059b33c.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 0x50d16b1ae7ee78d5de3bad55d41330682005695f0a320d2bb95d278c717c4178. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/KRA340904903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac267dbbadee16080111795a08ec5400f1dc58d2c47fdc4a4a3b14f02575aef6. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/KRA341754510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac267dbbadee16080111795a08ec5400f1dc58d2c47fdc4a4a3b14f02575aef6. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/KRA341754510.
기분좋은날 (Original Television Soundtrack) Pt. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12e1308fbdac6198f4c223e9f77abf7c06acbc8cbf261574043699f6343f97f8. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/KRA341423567.
기분좋은날 (Original Television Soundtrack) Part. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12e1308fbdac6198f4c223e9f77abf7c06acbc8cbf261574043699f6343f97f8. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/KRA341423567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc674b946e3d5a270e911c24ed7026154cfcf7c73a303aec62f25d1d796e48021. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T11:47:29Z), 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/KRA381209159.
Mr. Back OST Pt. 3 (Original Television Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58634baef3ae09ee7955db74ed71ca1e8207e67530b3f1e59c110b896b7c324d. 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/KRA381209756.
부탁해요 엄마 (Original Television Soundtrack) Pt. 3
All About My Mom (Original Television Soundtrack), Pt.3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd491d8d389ff085db7197c000029b2e5d6c72110178592e2772f61d2b3f665b0. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/KRNAR1500366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x910e372ed09c532eb2bdaaf35c213892895800b6034a49afd466b9c605a7a6d5. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/KRA381600447.
Loves Me, Loves Me Not (From "Fabricated City" Special Song) (Original Motion Picture Soundtrack)
Fabricated City Special Song (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad526b261e1c7c1d5048c9c5988520735144a434022f1377defd076a3de5999a. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:28:36Z), 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/KRF141700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81cfbd6e5d40398cd6547f35803912b46c9a07e25cd97b20e79165ab703c6a84. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:04:25Z), 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/KRA381900038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5de8e22db2a5ca11aa51a7e6d6e2fe4526b6826efe3d1cf47f27a01a503a15fd. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/KRA381900622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81cfbd6e5d40398cd6547f35803912b46c9a07e25cd97b20e79165ab703c6a84. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/KRA381900038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3dddf041f073109dd7fe8c5b6a7ff4712be5039225f3e3b488b4f934b79f2ec. 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/KRA381802093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd66bcabe1312d10c76a7fac0c251a4837b968e3d4b554f1c1a66e345fb94d051. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/KRB921730002.
사랑은 뷰티풀 인생은 원더풀 OST Part.10 Love is beautiful, Life is wonderful OST Part.10
[Vol.54] You Hee yul's Sketchbook : 31th Voice 'Sketchbook X Hong Jinyoung'
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17eb61a6d9faeb987f18ea8c30e978f1f0367da821c6e3d15ec1666abf9d8cbf. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/KRMIM2029629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2372e8340a303fc00da407be968af9e426db742002c31aee3e9f44b83ab3a92. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/KRMIM2104537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd05c839028d39bcbd9243eba305f6062572c231171fb03ac97e9f66f06836fa6. Chain 2 (Bitcoin): anchored in block 958681 (2026-07-19T06:14:54Z), 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/KRMIM2104538.
Gold Mask (Original Television Soundtrack) Pt. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0228bc71223bc876f2ebaf33bbded5f4d978fc674b1433d975c3895e289ac40. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T19:02:44Z), 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/KRMIM2224077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fb1061c0695eeed54e221379eee84f6783506893b26bf3367415c207fd1343c. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/KRMIM2266369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe885fe19a625d85e8668ab7653c94c25865dbb96551feb0de0e13b10f7b8bb0c. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T17:11:47Z), 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/KRNAR2216811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76ab4acc852a734768a7b204318a79a7807e3634e03533dfa419d8d2afceed27. 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/KRNAR2233438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed6d56f3818b9232c28116726cd12797597c9ace7020f5699a5742e3d681a7b5. 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/KRMIM2345552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe64c0b55a642fd34571f7f40b00898c759d3aa0cb74fdce08ae7cbb977ab6988. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/KRMIM2418284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc16ae15ce54089a33ffdafb6ba3f6c722246844a9051d61edceaf2b8c25525e. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T04:24:16Z), 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/KRMIM2501348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc76772c8992b522d0e28e82253c11914fb88521bc885fde97647afb857caf4ac. 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/KRA381700697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc76772c8992b522d0e28e82253c11914fb88521bc885fde97647afb857caf4ac. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/KRA381700697.