1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x499c720bbfaeadffa67015419fbb6f733a2f30580e5915a5ca9acf49e04b000c. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ebf9989b-52b8-427e-be82-7f3a17cfb171.json and https://artists.proofprofile.net/proofs/artist/ebf9989b-52b8-427e-be82-7f3a17cfb171.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
キャンディーをとったのはだれだ
ブロッコリーアイスクリームはすき? ＆ いろいろキッズソング
ブロッコリーアイスクリームはすき？
あたま、かた、ひざ、あし (スピードアップ)
きらきらぼし ＆ いろいろキッズソング
かぞえておどろう ぎゃくバージョン
おふろのはいりかた ＆ いろいろキッズソング
ジングル ジングル ちっちゃなベル
If You're Happy and You Know It Shout Hoo-ray
If You're Happy and You Know It Spin Around
Take Me Out To The Ball Game (Finny the Shark)