"Bad Child" is a song by Australian singer Toni Watson, known professionally as Tones and I. It was released on 12 March 2020 through Bad Batch Records, distributed by Sony Music in Australia and New
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 0x2c6df51b0a9697a872ae59b1197a5837e12ec8b14d679660b10765b1c4fe9642. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/65f36023-7b22-4234-8c1e-5fd853cf149a.json and https://artists.proofprofile.net/proofs/artist/65f36023-7b22-4234-8c1e-5fd853cf149a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).