Proof-of-Sibling Block: Oracle-Free Cross-Chain Verification in the Litecoin AuxPoW Ecosystem
We introduce Proof-of-Sibling Block (PSob), a cryptographic verification primitive that leverages the deterministic multi-chain Merkle commitment structure inherent in Litecoin Auxiliary Proof-of-Work (AuxPoW) merge-mining to enable oracle-free, cryptographically verifiable state inclusion across 8+ Scrypt blockchains.
Empirical Evidence & Theoretical Proofs
Cryptographic verification results from live mainnet co-mining telemetry and consensus invariant formalization.
Live 8-Chain AuxPoW Consensus Verification (400 Blocks)
Sample: 50 Blocks / Chain| Blockchain | Chain ID | Block Time | Proof 1 (TX Merkle) | Proof 2 (Chain Merkle) | Anti-Grind LCG | Live Explorer |
|---|---|---|---|---|---|---|
| Junkcoin (JKC) | 8224 (0x2020) | 60s | 50/50 (100%) | 50/50 (100%) | PASS | View Explorer |
| Dingocoin (DINGO) | 50 (0x0032) | 60s | 50/50 (100%) | 50/50 (100%) | PASS | View Explorer |
| Luckycoin (LKY) | 8211 (0x2013) | 60s | 50/50 (100%) | 50/50 (100%) | PASS | View Explorer |
| Shibacoin (SHIC) | 8228 (0x2024) | 60s | 50/50 (100%) | 50/50 (100%) | PASS | View Explorer |
| TrumPOW (TRMP) | 8229 (0x2025) | 60s | 50/50 (100%) | 50/50 (100%) | PASS | View Explorer |
| Craftcoin (CRC) | 99 (0x0063) | 30s | 50/50 (100%) | 50/50 (100%) | PASS | View Explorer |
| B1tcore (B1T) | 2840 (0x0b18) | 60s | 50/50 (100%) | 50/50 (100%) | PASS | View Explorer |
| Lebowskis (LBW) | 8227 (0x2023) | 120s | 50/50 (100%) | 50/50 (100%) | PASS | View Explorer |
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Concrete Technology Stack Built on PSob
PSob is not merely theoretical — it directly powers 4 production-grade systems across the Dedoo Framework.
Universal Multi-Chain ZK Peg-In Bridge
Single SP1 zkVM guest circuit verifying Scrypt PoW and AuxPoW headers for any of the 8 auxiliary chains. Routes wrapped token mints (wJKC, wDINGO, wLKY, wDOGE) on Base / LitVM using a single ImageID.
P2P Swarm & Bitcoin Computer Escrow
Cross-chain atomic swaps between Scrypt coins backed by Libp2p swap intent gossip (/psob/intents/v1) and Bitcoin Computer smart contracts (CrossChainEscrow.js) with 0.1ms client-side verification.
PSob Light Client SDK (@dedoo/psob-sdk)
Ultra-light TypeScript and WebAssembly SDK allowing web browsers, MetaMask Snaps, and mobile wallets to verify auxiliary chain inclusion proofs in less than 244 bytes without full node RPCs.
Dedoo Sibling Block Explorer
The first multi-chain explorer that clusters auxiliary blocks under shared parent Litecoin blocks, exposing cryptographic Merkle paths and proof downloads directly to developers.