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 0x3ee2d96ad8bf06f9b75b99d8ead109ceb36cdfa9708ad85c6b34d318bbd01eaa. 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/bb56efcb-903b-4fc1-99a4-2c12d1196cc1.json and https://artists.proofprofile.net/proofs/artist/bb56efcb-903b-4fc1-99a4-2c12d1196cc1.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 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 0x530d32e685ec703522a67b16ed2c7fe67158dca27779dae4638a00197dba6167. 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/KRA252100802.
Something Happens In This Afternoon (feat. NaktaCho2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01b2fbb49d563adc9005f4aa4921a8c95f7b4fbc97b6af66712c8c6c494b4d40. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/KRA252100852.
Your House Helper, Pt. 1 (Original Television Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d17f56da9cc45154ac1b38ad02550d24faac63447f387743113796b37ee8809. 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/KRF321800007.
Your House Helper (Original Television Soundtrack)
100 Days My Prince, Pt. 4 (Original Television Soundtrack)
100 Days My Prince (Original Television Soundtrack), Pt. 4
#좋맛탱 (Original Television Soundtrack) Pt. 1
#좋맛탱 (Original Television Soundtrack), Pt.1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12028f7ad95cb4cee5cd12f47897743cb7232c69c589e84d6ab870c16e75c89c. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/KRA251900562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79e8d9ff166f34939a4a5cb3618a486777558bb49e34519eb5679ef8a4e39210. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/KRF321800006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc412f0214c0fdcb564da914b59cb5d765d382fbaff8e7c655233e272c22038c6. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), 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/KRF321800009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x430d3b495b8d6bb38e697902243966030cd91c9bb732a1e2eace4e80c444a050. 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/KRA251902142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e22a3ae0ddd22bdd857d57a985f38abeedf288d2672758d99f19c2efbf62210. 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/KRA252000243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec17979cb11c6e7ad65d630689e2514da93e83aace290ecf58e60b59087a3395. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/KRA382001047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe6f4a94bbebc8abed9969b0e7727c1723522dc1c8d6ef47ebee24f2f75ca317. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/KRA382001048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaa7094912e2d80ad9bedc8178b294dc9a9879d564108c5eab1804587be076d1. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/KRA252001013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb285d5ef110d02f7457c10d04fbcc1797978f62a5b20ed8503e8a639bca06ceb. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/KRA252100369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc77399fd2b64cefa00a9684dd2896e79fb2a1463fba63749b8eac256b9b10234. 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/KRA252200308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6a0db65b7416d24bf9e14e7cbf3ccbde8d180da1279d43f194eabff91a24111. 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/KRA252200782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25136c40baf6670faac9452572e4d11c42f00fd1f662dc6d885f37467b80ca1f. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/KRNAR2211277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e0b01f9679538dad78e76ddcfa7458ec41e90692a6452e0aa00e7d4fc32fbb7. 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/KRB472300089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf193759c31080388134b3ac1e022e6e3f2aa8ca6bba46d5369ba2cb3f651edce. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/KRA252301112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3654485bbceca1f234672d0a21ed75c30fb66fd589c25274b29898abd238820. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/KRA252402383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd65d03d00286bc7092b07be114785c69950b7fe4e3ab0628429dee39bdf27d15. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/KRA252402981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2231e5c92db0c32d49ee1a42a005c5e8ed9ca3b6922d50ee5cb543edd471029. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/KSB012340115.
MR. ZOO: THE MISSING VIP (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb31c883f1e890ccafa4b03bed2752f14b8ff5d81cbfce75c35260544b58ddad3. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/KRE772000021.