"Chill Bill" is a song by American hip hop recording artist Rob Stone. The music video was put out on YouTube on June 25, 2015. The song was premiered on March 15, 2015 on YouTube on the account of nu
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 0x477397ed3af58abfe85aa047dfeea4e337870531d2978b97fbd483fb484662e9. Chain 2 (Bitcoin): anchored in block 954516 (2026-06-20T07:04:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a149b4c6-0b05-43b1-a2e4-d5cd51083f31.json and https://artists.proofprofile.net/proofs/artist/a149b4c6-0b05-43b1-a2e4-d5cd51083f31.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).