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 0xc1c70f72f42a05b4bb49f1e2426c595d60168dacfb09c3e507be10764fd3c01d. 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/6609b1c5-894d-4f14-99e4-8a89238cb113.json and https://artists.proofprofile.net/proofs/artist/6609b1c5-894d-4f14-99e4-8a89238cb113.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ein Retter auf vier Hufen [Lou + Lakritz, Band 4 (gekürzt)]
Pixi Hören: Kasimir und die Bauernhof-Olympiade
Zwei Ponys auf Verbrecherjagd (Lou + Lakritz 6)
Ein Pony zum Verlieben (Lou + Lakritz 5)
Das klügste Pony der Welt (Lou + Lakritz 3)
Zwei zottelige Freunde (Lou + Lakritz 2)
Pixi und der Frühling (Pixi Gute Nacht Geschichte 04)
Bezaubernder Kasimir (Pixi Gute Nacht Geschichte 23)
Tafiti und die Expedition zum Halbmondsee
Pixi Welcomes the Spring (Pixi Bedtime Stories 04)
Casper the Cat Magician (Pixi Bedtime Stories 23)