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 0xd2753bac24d8f23e6d4c060d7800afdddae89c6ef61ba99484c2aaf3daff4186. 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/f328b367-44d4-4353-b3d2-d9af5ddeea02.json and https://artists.proofprofile.net/proofs/artist/f328b367-44d4-4353-b3d2-d9af5ddeea02.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 0x04b116c08a24568252d0187b51f51e8795d27d126772ff31e8b31c70917e7501. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T13:01:04Z), 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/CAWHO2031143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65aa2f1d1547bc4464477563f2297eaefbfd1460c4732c7d33faa1357c841271. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/CAWHO2031147.
Video Game Music - Background Instrumentals
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc438f31bd87ffcb600ac0eb1a588a5c07e72775a579e5f6760ebb0fbf3314480. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/CAWHO2031148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f214cd88e7edad4f767c55a3d299b9a5fd51e94fb5a262a1cc1f112f39aaa6d. 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/CAWHO2031154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63df711aee7b52ee06e44f0177ec02ea29c18b6d57a5002dfd6910265758a7cd. 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/CAWHO2031155.
LOFI Hip Hop Beats SP404 vs MPC Textures & Aesthetics
Soothing Tunes: A Smooth Lofi Mix for Evening Yoga
Lofi Relaxation Escape: Calm Waves of Sound
Cozy Canines: Lofi Grooves for Contented Dogs
Serenading Om: Lofi Melodies for Yoga with Ambient Sound
Relaxation Delights: Blissful Chill Music with Lofi Tracks
Lofi Work Efficiency: Elevating Your Output
Transcendent Urban Harmony (Chill Beats)
Chill Beats: Ultimate Lofi Mix for Relaxed Vibes
Lofi Reflections: Ambient Music for Thoughtful Moments
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e88158b565bddcf8f737c4f3a5b7b84ddff920049c86061779ce5f030885792. 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/PLH492401432.
Canine Lofi Tunes: Sounds for Happy Ears
Chill Hip Hop Beats for Deep Meditation States
Richiamo degli Spiriti: L'Alba della Rigenerazione
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9165f393e12b858d9d8ed89826661c9ad4cd0c044190f9b7346d1f007724d035. 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/PL0B62366527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd39f3f91362d39cd9d69555528aadadd8bc5b2949ebddf193e69cadcbbd08e8b. 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/PL0B62366523.