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 0xe59346771be512b5e75d746c0db91b086b30f3753de70bb0e5c65311c53d4880. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6c5d644f-80d3-4a90-9399-52260ea8e783.json and https://artists.proofprofile.net/proofs/artist/6c5d644f-80d3-4a90-9399-52260ea8e783.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Music for Stress Relief: Babbling Brook's Office Operetta
Zen Relaxation: Music for Meditation Insight
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 0x8e3c422eef447fc15f218bee597188766d1b660ce6accc689ad3f08833408062. 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/QZWV32405050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf474cd8e5c9484c9ff46a3b87645c06f7f7dd56d700f385d5d1cc7289fd415f. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/QZWV32405099.
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
輝くサクソフォンの部屋: クリーニングのためのジャズ
Fireside Relaxation: Soothing Music for Calm and Comfort
Melodic Music for Relaxation: Gentle Tones
Thunder's Gentle Roar: Relaxation Symphony
Calm in the Rain: Relaxation Soundscapes
Serene Resonance: Music for Deep Relaxation
Relaxing Thunder: Binaural Soothing Tunes
Peaceful Paws: Binaural Fire Relaxation Music for Calming Pets
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5bda6693adfb845434409d77b94fc9885c108ebfc33ab88f651342cf868dbb5. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZ5FN2465964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x762da0b5f8e586c0358387c7d76a3940d851f344ae06d7b586cae93a8df84e26. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZ5FN2465981.
Relaxation Piano: Melodies Flowing Towards Peace
Music for Relaxation: Gentle Rhapsody Calm
Music for Relaxation: Rhythmic Repose Calls
Music for Globe Trotters: Rhythmic Highway Scape