Welcome to ZeroINK

Jackie’s thoughts and research on cryptocurrency, privacy, and open source.

Bitcoin signature stack: algorithm (ECDSA vs Schnorr), locking script (P2PK → P2PKH → P2SH → P2WPKH/P2WSH → P2TR), and SIGHASH (ALL / NONE / SINGLE + ANYONECANPAY; DEFAULT)

Bitcoin Signatures, Disentangled: ECDSA, Schnorr, Taproot, and SIGHASH

Bitcoin signatures split cleanly into three layers: the algorithm (ECDSA vs Schnorr), the locking script (P2PK, P2PKH, P2SH, SegWit, Taproot), and the SIGHASH commitment. Here is a layer-by-layer comparison of security, fees, and privacy, plus three approaches to multisig and a practical checklist.

Proof of Reserves structure: assets (signed addresses, unencumbered) and liabilities (Merkle root, zk sum proof)

How Proof of Reserves (PoR) Actually Works

A technical breakdown of Proof of Reserves: Merkle liability commitments, signed reserve addresses, what each party can verify, and the trust assumptions that remain.