import hashlib

def audit_txid_contexts(raw_tx_hex):
 print(f"--- Transaction ID Context Audit ---")

 # 1. Calculation Context (SHA-256d)
 # The math happens on the binary data
 raw_bytes = bytes.fromhex(raw_tx_hex)
 first_hash = hashlib.sha256(raw_bytes).digest()
 second_hash = hashlib.sha256(first_hash).digest()

 print(f"[*] Raw Math Result (BE): {second_hash.hex()}")

 # 2. Storage Context (Little Endian)
 # This is how it sits in the 'blk000.dat' file
 # Note: In Bitcoin, the storage format IS the reversed hash
 storage_format = second_hash[::-1]
 print(f"[*] Disk Storage (LE): {storage_format.hex(' ')}")

 # 3. RPC / Explorer Context (Big Endian Display)
 # The software reverses it for the human
 # This is what you see on Mempool.space
 display_format = storage_format[::-1]
 print(f"[*] RPC/Explorer (Display): {display_format.hex()}")

 # 4. Consistency Check
 if second_hash.hex() == display_format.hex():
 print("\n[!] VERIFIED: The Display TXID matches the Raw Math Result.")
 else:
 print("\n[X] ERROR: Mismatch detected.")

# --- Simulation ---

# A mock minimal transaction (hex)
# Version (4) + Input Count (1) + ...
mock_tx = "0100000001" + "00"*32 + "ffffffff" + "01" + "00"*8 + "00" + "00000000"

audit_txid_contexts(mock_tx)