"Deep Inside" is a song by the American singer Mary J. Blige. It was written by Blige, Tara Geter, and Kevin Deane for Blige's fourth studio album, Mary (1999), while production was led by Deane. The
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 0x6d1b8939098dbcfc2ba199762c6978134d4df357d675397c27e98bae8785eb83. 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/b7ca9ac5-65b2-486d-be0d-0adc88407705.json and https://artists.proofprofile.net/proofs/artist/b7ca9ac5-65b2-486d-be0d-0adc88407705.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).