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 0xa372851367aab488dfc85499aa6d4d193da2cf4e39a9e71c7ee9cca5b4f5dc97. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1f66913d-bada-4182-b742-e889c63b625e.json and https://artists.proofprofile.net/proofs/artist/1f66913d-bada-4182-b742-e889c63b625e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Harmonia - Despertador suena,sons réveil,sveglia suoni,väckningsljud,oppvåkningslyder,uyandırma sesleri,ウェイクアップ音,웨이크업 소리 - Single
Natur Vögel Wald - Sanft Aufwachen - Single
Aufstehen Ist Leicht (Steigernde Melodie Sanft) - Single
Extra Laut! (Anti Schlummer - Anti Snooze Alarm Sound) - Single
Carpe Diem - Nutze Den Tag - Seize the Day (Piano Sanft Und Smooth) - Single
Klassischer Retro Wecker (Classic & Popular) - Single