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 0x948167795c5ba6014a79fa9a39747c290dba6f2a958db77a45f1030cc2aae0da. 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/438f81ea-149e-4d7b-8e79-0c57fe7ba670.json and https://artists.proofprofile.net/proofs/artist/438f81ea-149e-4d7b-8e79-0c57fe7ba670.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 0x77d34f124d90b84a039f70117ea75959f93076a6366005e792181f16f1c764cd. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T04:09:20Z), 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/GB32E1404927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x632d59cc4ec02b611637a9305ea1d3b413da8dd676f972ac92e6d479d8dc4ff6. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T06:51:32Z), 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/KRA381211018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x087b3e8f19ab2c0c845a17dfb1b69b0cf116df0d7e56955f5b94a03e2bbc4b94. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/KRA381211029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3755e4c25c75ba63e5334b19256eaa7d240493b7d4e0411166505f93fb7025db. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/KRA381211030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67fcde107b86ea19986f74974eaa45c8e2ef192bd9176fb0f031114068b6735b. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/KRA381600066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb952f1a44958a814b2b352d4066e9886a7d6fc9307235a0778d5ecd35c044b92. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/KRA381602653.
Guardian (Original Television Soundtrack), Pt. 8
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x679b773d1ab56e28449e1a42a05dbee99b48581c2a17db69e61aefb8e69e0e7a. 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/KRA381700541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a9c688076d80b601a71510a8ec9b8f6533de3337f36d5841b50ad4445876efb. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T18:36:32Z), 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/KRA381700543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5996bd9946ae054737e374ad7caec8dbc7e10d6086eb86f300bec287cb5cf61b. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/KRA381700544.
While You Were Sleeping Pt. 10 (Original Television Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x036ad90f58bcbf9b87c83a67cfcfe8204e6c566c4a6170b9e5a12ae6be2b64b1. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/KRC211700031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a2adf7530fd204bfc592426e375f04e79a8f765fd9df6a47081d038796dade0. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T02:55:16Z), 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/KRB920901513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6232706884ade4201a6c0d10771e0f06d6b1cd9f24bc2f5eceeef4267284c4ab. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/KRA381801690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe38f85d472dac5c5ddcb623d74209e238068cdc05cae07e63725fda0454f7e50. 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/KRA381904459.
[Vol.35] You Hee yul's Sketchbook 10th Anniversary Project : 17th Voice 'Sketchbook X Jung Joonil'
[Vol.36] You Hee yul's Sketchbook 10th Anniversary Project : 17th Voice 'Sketchbook X Jung Joonil'
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9c90497cfab1959971763cca921319dae16201644a4f9187997b818fee3a032. Chain 2 (Bitcoin): anchored in block 958689 (2026-07-19T07:11:11Z), 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/KRA381904662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a58ce8496771dbe61b2e79d19582db0263655ce0b4f3a917f4fa93f2805cf42. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/KRA381904664.
A PIECE OF YOUR MIND (Original Television Soundtrack), Pt. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37fc97ae02ec382926dc68c7591f8dd4ceec03d2ee3df00ce8e1a49575730d21. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/KRA382200150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0cb8c0de4fd7448b736fd1cbcdf6d9eceb2717e9bcdece7c27b85c801ad89ae. 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/KRA382205707.
TwinkIing Watermelon (Original Television Soundtrack) Pt. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fda3a71869c0d6e5e13cd6419b12d6a29271fe2a5c0b97f0868019800ddebd9. 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/KSA012277410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7683f644b41546f5947772fe69a362c5ef52429aaa2343f52280a95f674c130d. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/KRMIM2448314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ab2573845de9eac9da363052277fed8182673a5c871544b94fea58e7c05b1b1. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/KRMIM2448316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd2e7c0d20e982f959798e1eb2fc5fc8857972f1284dafd1d160d33c178a3e4b. Chain 2 (Bitcoin): anchored in block 958590 (2026-07-18T17:28:56Z), 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/KRMIM2448317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd34d53259c365746dd19d5a97677cd16fc4eec4669ae094850e04f07a0caf07. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T23:52:28Z), 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/KRMIM2448318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8b2d02e10db38f6a73f50025fa0ea8f6f529f14d8ba4832727a3f59e3089b25. Chain 2 (Bitcoin): anchored in block 958691 (2026-07-19T07:19:31Z), 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/KRA382502311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5ea0314d2c7439efbbb8fe1c739a560a97f9a695aaf277faf19942394b88dc8. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/KRA382502308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91a1c9f6305f8b09d1a88dcce5d3ca59821f63d69eee5e058b7f09e7d335cf5f. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-20T12:02:20Z), 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/KRA382502329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa2336b8268ab857a471c5d6bb3e8df6c61f8e06c71f22a4f0a2c93d2e3b80f9. 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/KSA002500738.
Snow Flower (Original Soundtrack from Just For Meeting You)
A PIECE OF YOUR MIND (Original Television Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd9df06d1fb2af8d43698ca1b20bbc2f0ca8f53e2371f63b2fa0305059dfb45c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/KRA492000353.
While You Were Sleeping (Original Television Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50ac19cb1d29bffc7cd5d508744d8170d51128bdee032398bf8cfd2ff7212402. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T17:17:30Z), 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/KRC211700054.
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