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 0x48711fc64698ed77a9df49b703aec74d2694115d645226e218f4a01fa11fca66. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3090c18f-f66c-4429-bfd8-30b2a27b89b1.json and https://artists.proofprofile.net/proofs/artist/3090c18f-f66c-4429-bfd8-30b2a27b89b1.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 0x17ca90059ae17fe9ca899b41aa425e2131509433aa299389bc0cf5cb0b9c4969. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/KRA321600044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x003fa71ddc6e82b8582414479d8a5afe49f67dd7eeb9006fc2f74983691ced5f. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:40:07Z), 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/KRNAR1704970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa37022e378d0365e22ae5eb11d039dd7301b2df498ffcf4aa3810bc5fab639d5. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/KRF251700005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa85ac9d89b2d5163464c6bc1783118e99830006a2c6f734cca17da9160b5f38c. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-20T12:07:45Z), 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/KRF251800026.
You, again (Prod. Humbert) (Inst.) (Instrumental)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20a229aeb860c2bfd376b09dd2516c551108fa80f9d55b7b30a23da26aab7e43. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/KRA381800246.
I'II be your star (Inst.) (Instrumental)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bdf7c86b7790927e680a1f9c24c414292630add19063b217ecbe3ecc7c1f7e6. 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/KRA381800447.
Miss Independent Jieun2 세상 잘 사는 지은씨2 (Original Soundtrack)
Miss Independent Jieun 2 (Original Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16e05959a838417743050c3e050bf124d5721397480e8833a9dc5035d2962dd8. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/KRF251900094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad6208bf9b5724ecf8952846edc655de81b2a900e374cc77c420d0bf80be3e7d. 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/KRA381905410.
The Warmest Gift 얼마나 더 (Acoustic version)
Crash Landing on You (Original Television Soundtrack), Pt. 9
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2dfebb223b7c02f77b81a9c8261dad9a2e6136d1b461e6cbaa3198e14c5d9b9. 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/KRB472000435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e58a097883298e55e68a4faa2f12e7b9cd00a51b3ccda39dacdea762b4c04c2. Chain 2 (Bitcoin): anchored in block 958587 (2026-07-18T17:06:26Z), 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/KRF252302110.
Queen of Tears (Original Television Soundtrack), Pt.8
The Atypical Family (Original Television Soundtrack), Pt. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e8a230f573d422c531603811e17eba71936c6cdfbd7b835333c227e021afa38. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:20:37Z), 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/KRF702400156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c5e2576c64126c4ad9917bcd0049506025646632c51c6af54744b8b6bf311b8. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/KSA002421510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x947b37f49a06b130e1ca33ea9bf4e3a840276d940750e05e51da34f7b99513b9. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T18:36:17Z), 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/KSA002421511.
Heavenly Ever After (Original Television Soundtrack), Pt. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ab1d445e38879366fe86d1a979f35c259afb43478ea0030c2db6a0d555ef755. 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/KRF702500047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e7276a0150f7a7870af14023868e0f2c5374e3371f733ad58336e6894088f62. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/KRF702500048.
Crash Landing on You (Original Television Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x684765d02578ca0ed984015ccc088fa022151bfe5849e2af57cfc9ad98143e90. 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/KRA492000125.