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 0xd5715bde54bc24ffd0f168a4b69082867bb58d30c7e9ea900259f634f1724a59. Chain 2 (Bitcoin): anchored in block 953605 (2026-06-14T07:39:50Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/123b262b-5ab7-4a25-9f01-49e556908600.json and https://artists.proofprofile.net/proofs/artist/123b262b-5ab7-4a25-9f01-49e556908600.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Classical Focus Study Music for Deep Concentration and Productivity
Orchestra & Cinematic Piano & Cinematic Orchestra
Classical Music for Concentration and Calm Classrooms
Peaceful Piano Sleep Music for Deep Relaxation and Restful Nights
Piano Sleep Therapy for Deep Rest and Healing
Deep Delta Waves with Calming Piano Sleep Therapy
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 0xaf9f903a86d123a1ec5e28fcf068c41d11f27267ae4a9f6af27eafd4560a223f. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZP7F2589966 — a six-check JSON result.
Guided Piano Sleep for Deep Healing and Recovery
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x701a54d3acf13c278ec13cc118efa9e77b44bba182a08b99920e7f7c4082adc8. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZP7F2589967 — a six-check JSON result.
Science Based Sleep Tones for Restorative Nights
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08f8540bebcb209f29f8d690bdd8315e83e685e39431b2d9045abe41214feee6. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZP7F2589968 — a six-check JSON result.
Peaceful Piano for Deep Sleep and Relaxing Night Therapy
Violin Study Music for Focus, Concentration, and Calm Learning
Classical Focus Music for Studying, Reading, and Deep Work
Piano Sleep Science for Deep Rest and Relaxing Nights
Violin Study Music for Focus and Deep Concentration
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac88d839ce203fb42059d9ce1d22ea4760bd3db8e28985034bfc1d440fa09e63. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAWK52508847 — a six-check JSON result.
Focus Music for Studying and Concentration
Calm Chill Classical Background Music for Studying
Anime Inspired Relaxing Piano Music Dreams in the Rain