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 0xfd4b0a65b3f81f57ba409cb313c603fecd437e84d835d8bccbced59f0b6f02cf. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8ee8fc36-943d-4327-9d38-37fbb37a1ae0.json and https://artists.proofprofile.net/proofs/artist/8ee8fc36-943d-4327-9d38-37fbb37a1ae0.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 0x8d44d8edbb186fab4402391e50feadfeb5a6e0e0295d5af2aed5eba623a16615. 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/KRB471405813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa45755b1e9b1240239c0296e61325a9912b2745214393e19260f37f5a7193fe4. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/KRA531683001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ad8853b489b8ce7fd2eddf7f4d8b0a692e377faa36617678bb27a26f1496b04. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/KRA531683008.
Bye, Autumn (From "Don't Dare To Dream" Original Television Soundtrack)
Chicago Typewriter, Pt. 1 (Original Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4d73103452d6ee238cc89682a4936b862d0b2a41e3d184618bebf4d7b5b2476. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/KRA341759152.
투깝스, Pt. 4 Original Television Soundtrack
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafee0a82ba63c02555897aecda7e8a12ef5e9a2046684996c43e00eb3afcc30b. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/KRA531701522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a266fe912c6656a52bd008bba438cd52616a662d0ffa7689a7ea818205c25e5. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/KRA531701528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceac94898309f383f4681aa9a395c50ffd3d30868f0685c61847beac9ab36c89. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/KRA531701529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a8ad3dfcc9af64927b685ef070b8ff4fbc05dd329ac3878bc6a820c9a3ab5da. 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/KRA531701531.
Cross (Original Television Soundtrack), Pt. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf98106b5eeff6f191f970500805243357d319b0a06fed991270a6de934b7cd8a. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/KRA491800112.
I SWEAR ('Cross' Original Television Soundtrack Pt. 1)
Ms. Ma, Nemesis Pt. 4 (Original Television Soundtrack)
Mis ma, the goddess of revenge OST Part.4
Encounter, Pt. 6 (Original Television Soundtrack)
Encounter (Original Television Soundtrack), Pt. 6
Doctor John Pt. 2 (Original Television Soundtrack)
Tracer (Original Television Soundtrack) Pt. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3403815a37eee7c85e9ea5fe44d287351a2871aeed330d80e7af94ff21af5d69. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T01:43:24Z), 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/KRMIM2183595.