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 0x1581f90b56c2edcd03bd296067c4df8ab4f91da15d7b02ac3f035ae2dea6c1d2. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ae176c71-7ce0-4d96-a8e5-1681ee6f8ff5.json and https://artists.proofprofile.net/proofs/artist/ae176c71-7ce0-4d96-a8e5-1681ee6f8ff5.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Das große Yoga-Hörbuch (Autorisierte Lesefassung)
Meditation - der Weg des Yoga (Eine praktische Einführung)
Chakra-Yoga (Meditationen zur Aktivierung unserer Energiezentren)
Samadhi [Den Geist befreien. Yoga-Meditationen (Gekürzte Fassung)]
Pranayama [Yoga-Atemübungen (Gekürzte Fassung)]
Anti-Stress Yoga (Übungen für mehr Gelassenheit - Ein Kurs für zu Hause)
Der kleine Alltags-Yogi (Lesefassung mit Musik)
Anti-Stress-Yoga (Neue Übungen für mehr Gelassenheit - gelesen von Anna Trökes)