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 0xaf1c3a809cc57536910252fa621c1c21344e63c00847c29a56fc7f9331cf14b4. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5f70616b-96cc-4dd4-8920-6d97009c41ac.json and https://artists.proofprofile.net/proofs/artist/5f70616b-96cc-4dd4-8920-6d97009c41ac.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Keep Calm - Relax After Dark – Massage Music for Relaxation, Piano Music
Relax Zone - Rilassamento Totale, Musica per un Break Giornaliero, Rilassarsi con i Suoni della Natura, Musica Zen per la Pace Interiore e l'Equilibrio del Corpo e della Mente