Exclusive — Legacybtcfile21novtxt

If the file is a genuine data dump from an exchange or old wallet service, it may contain:

| Column | Description | |--------|-------------| | | Standard Base58Check Bitcoin address (e.g., 1A1zP1eP5QGefi2DMPTfTL5SLmv7DivfNa ). | | First‑Seen Block | Block height when the address first received a transaction. | | Last‑Seen Block | Block height of the most recent outgoing or incoming transaction. | | Total Received (BTC) | Cumulative inbound value. | | Total Sent (BTC) | Cumulative outbound value. | | Balance (BTC) | Current unspent output (UTXO) balance. | | Notes | Free‑form annotations (e.g., “likely a cold‑storage wallet for early adopter X”). | legacybtcfile21novtxt exclusive