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 0x2aa61d943bde1178b3907933f0a9be100102f7d6e13a44ac7fc14285646ee9b4. 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/610a0408-4c99-44fc-b545-36a71fb792c3.json and https://artists.proofprofile.net/proofs/artist/610a0408-4c99-44fc-b545-36a71fb792c3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
! ! ! ! Lofi Chill Out Beats Series ! ! ! !
Late Night Lofi Chill: Lofi Sounds, Peaceful Lo-Fi Tracks
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Beats & Brev: Den Lugna Resan av en Brevbärare