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 0xa84e124e03c879d75efcee29f2ca402e865ab6bc1c602f1bff8c25c8fd063293. 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/ad5a6d48-1de9-47d7-b0ef-48db3ddf7b32.json and https://artists.proofprofile.net/proofs/artist/ad5a6d48-1de9-47d7-b0ef-48db3ddf7b32.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 0x5d896525c6a69b0af35d6852c61ed8b56a14131c5833bca82023054eb4cfee3e. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/KRA382323260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfcbeec4764943aaf2a483f5e45c0caf64673bf03c708949f9d68bd90626318e. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/KRA382323261.
Some Guys & Some Dolls (Music From The Original TV Series), Pt. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x633fae1fa91a7df899caea4678b952eb7b84552f48d3d78c79720e7b2999d793. 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/KRA491500834.
Reply 1988 (Original Television Soundtrack), Pt. 4
투유 프로젝트 - 슈가맨, Pt. 26 : The Name (Live Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa621ecc64b1ab1c4d9bc724531518369fa61ae2d4a08c877a1758e40b7ce4851. 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/KRA491600275.
Please say something, even though it is a lie (inst)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8dea08385c9b608cc2b2436c5aa0681190599531d8acb903fd8b4a0d545a1e2. 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/KRA381601429.
Introverted Boss (Original Television Soundtrack), Pt. 4
Man to Man, Pt. 2 (Original Television Soundtrack)
Man to Man, Pt. 2 (Music from the Original TV Series)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2032819c8ec8d1db7acf2f6b9482660b3065b900261a547b1b1a4be7e16815a8. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/KRA491601236.
Prison Playbook (Original Television Soundtrack), Pt. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44d396ad4af5a7e269b06266c076b8cdaba78b727c1b1862d05af20224b98d23. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T16:58:47Z), 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/KRA491700398.
Like A Dream ('Prison Playbook' Original Television Soundtrack / Part 3)
Please, Stop Me (Feat. Lil Boi of Geeks)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd939ce3895d6953d51a9ff1774470c2fefa8a8b0fe05ee9f4cb1a45872bd8cdb. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/KRA381704770.
About Time, Pt. 2 (Original Television Soundtrack)
About Time (Official TV Soundtrack) Part 2
Want to be happy (From "soundtrack#1" [Original Soundtrack])
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf106eec1a3f18e22cc31fd51dbb88d314f652d95c9b9b2144b0227cfd7cbb676. 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/KRMIM2245239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x266ec05df1d165a34f6d80215b0364277b0c36c8851d2dca8ede59e521528a7e. 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/KRMIM2364372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf721b8b02c21d5a7ab6b6c7813494b9fb6556598ce2d1b7a57cd28f75ba1b4ea. Chain 2 (Bitcoin): anchored in block 956425 (2026-07-03T01:28:11Z), 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/KRB922402987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36e0ddf3be77357101d04d8bcb193ae0370bb08e967bb95c2a5100be035fee59. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/KRA381900676.
Left over left hand (Inst.) (Instrumental)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44d868a73099baca6d6c67bdcbff13e4cfbdd8c6093917b30c4404def5077743. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/KRA381900677.
Prison Playbook (Original Television Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92359e8c93d1eee88cd99f514d0142245f92681390b0d28f808dcb33697890f9. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/KRA491700397.