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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x637a3153f3831ca5e9bd61926e5077842a04c32ca6e4e5173c4f19430ee4417e. 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/51241d57-4665-46a9-8d8c-7f7359ccb1c6.json and https://artists.proofprofile.net/proofs/artist/51241d57-4665-46a9-8d8c-7f7359ccb1c6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
사랑의 단상 Chapter 2 - This Is Not A Love Song
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefd5666f78b24315d1b32bb9de7e2a50606a75de083e89752ae36f073c583e03. 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/KRA340926527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5824545372aa762c339d875a48aea0e7171cac7cf94637ef48c5522c9170a4ee. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/KRNAR1709485.
Rain Or Shine (Original Television Soundtrack / Pt. 1)
Twelve Nights (Original Television Soundtrack), Pt. 4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a1b1f25e4a9ba857f7af0dc1566e3d08e070c5f212a1ea5d29e000f766bfa0c. 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/KRB471801681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x620d7b69f7c8cbb9198099a5be747a8132208b13380b3de6c87b5c0808d4bc00. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/KRMIM2010043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc848be76c5fe70fc0e63eb1c82ded541683be15e704ad95f222fc522645d8ca2. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/KRMIM2021277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ecc2e6d2b8d22613f2855f2b39136e72120c8674d4a754edcd2c6208b7cbce4. 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/KRMIM2117627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb14cf32258d3a33c815574c2d1195cb95afb36842dd2aaf8fca200bb1dba60ec. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/KRMIM2140670.
Now On, Showtime! (Original Television Soundtrack) - 'DANDELION'
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e810e9c86c324591a700aa5e05e48eb26369d71eb14c8f3d6fd3c1180a6910b. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/KRMIM2237780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2217e2db52d66848837098680f694f64fd95f6583883672be9e73239a336b201. 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/KRMIM2300674.
Palemoon, Pt. 2 (Original Television Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23908525f63034d8e3497c26989af1fe692d0c345e3795b24b73c297856ad4c6. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/KRE552400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7f0afee8b6c682c0c8010944ffb54ee62b2c1d64f2ff07f6217d12e5e1cd531. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/KRE552400014.
NONOL VOL 62. Zitten ' Back Light (NONOL Live ver.) '
The Producers (Original Television Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b705637d5c8389f6f0aa7efb691ff7b30fc5e20f2b9898fe8b806e9b4bd2334. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/QZEKE1878654.
Sky: Kim Haneul & Pastel Music Compilation
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f609aeecab8c27e09eaa9df156553417afa5205cf5ba8970f0f4fb8433187e9. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/KRA341222620.