$ ./bitcoind -signet
2020-12-12T15:39:04Z Bitcoin Core version v0.21.0rc3 (release build)
2020-12-12T15:39:04Z Signet derived magic (message start): 0a03cf40
2020-12-12T15:39:04Z Assuming ancestors of block 0000002a1de0f46379358c1fd09906f7ac59adf3712323ed90eb59e4c183c020 have valid signatures.
2020-12-12T15:39:04Z Setting nMinimumChainWork=00000000000000000000000000000000000000000000000000000019fd16269a
2020-12-12T15:39:04Z Using the 'sse4(1way),sse41(4way),avx2(8way)' SHA256 implementation
2020-12-12T15:39:04Z Using RdSeed as additional entropy source
2020-12-12T15:39:04Z Using RdRand as an additional entropy source
2020-12-12T15:39:04Z Default data directory /home/twitch/.bitcoin
2020-12-12T15:39:04Z Using data directory /home/twitch/.bitcoin/signet
2020-12-12T15:39:04Z Config file: /home/twitch/.bitcoin/bitcoin.conf (not found, skipping)
2020-12-12T15:39:04Z Command-line arg: signet=""
2020-12-12T15:39:04Z Using at most 125 automatic connections (1024 file descriptors available)
2020-12-12T15:39:04Z Using 16 MiB out of 32/2 requested for signature cache, able to store 524288 elements
2020-12-12T15:39:04Z Using 16 MiB out of 32/2 requested for script execution cache, able to store 524288 elements
2020-12-12T15:39:04Z Script verification uses 7 additional threads
2020-12-12T15:39:05Z scheduler thread start
2020-12-12T15:39:05Z HTTP: creating work queue of depth 16
2020-12-12T15:39:05Z Using random cookie authentication.
2020-12-12T15:39:05Z Generated RPC authentication cookie /home/twitch/.bitcoin/signet/.cookie
2020-12-12T15:39:05Z HTTP: starting 4 worker threads
2020-12-12T15:39:05Z Using wallet directory /home/twitch/.bitcoin/signet/wallets
2020-12-12T15:39:05Z init message: Verifying wallet(s)...
2020-12-12T15:39:05Z init message: Loading banlist...
2020-12-12T15:39:05Z ERROR: DeserializeFileDB: Failed to open file /home/twitch/.bitcoin/signet/banlist.dat
2020-12-12T15:39:05Z Invalid or missing banlist.dat; recreating
2020-12-12T15:39:05Z SetNetworkActive: true
2020-12-12T15:39:05Z Using /16 prefix for IP bucketing
2020-12-12T15:39:05Z Cache configuration:
2020-12-12T15:39:05Z * Using 2.0 MiB for block index database
2020-12-12T15:39:05Z * Using 8.0 MiB for chain state database
2020-12-12T15:39:05Z * Using 440.0 MiB for in-memory UTXO set (plus up to 286.1 MiB of unused mempool space)
2020-12-12T15:39:05Z init message: Loading block index...
2020-12-12T15:39:05Z Switching active chainstate to Chainstate [ibd] @ height -1 (null)
2020-12-12T15:39:05Z Opening LevelDB in /home/twitch/.bitcoin/signet/blocks/index
2020-12-12T15:39:05Z Opened LevelDB successfully
2020-12-12T15:39:05Z Using obfuscation key for /home/twitch/.bitcoin/signet/blocks/index: 0000000000000000
2020-12-12T15:39:05Z LoadBlockIndexDB: last block file = 0
2020-12-12T15:39:05Z LoadBlockIndexDB: last block file info: CBlockFileInfo(blocks=0, size=0, heights=0...0, time=1970-01-01...1970-01-01)
2020-12-12T15:39:05Z Checking all blk files are present...
2020-12-12T15:39:05Z Initializing databases...
2020-12-12T15:39:05Z Pre-allocating up to position 0x1000000 in blk00000.dat
2020-12-12T15:39:05Z Opening LevelDB in /home/twitch/.bitcoin/signet/chainstate
2020-12-12T15:39:05Z Opened LevelDB successfully
2020-12-12T15:39:05Z Wrote new obfuscate key for /home/twitch/.bitcoin/signet/chainstate: 170005111e9356f3
2020-12-12T15:39:05Z Using obfuscation key for /home/twitch/.bitcoin/signet/chainstate: 170005111e9356f3
2020-12-12T15:39:05Z init message: Rewinding blocks...
2020-12-12T15:39:05Z  block index              34ms
2020-12-12T15:39:05Z loadblk thread start
2020-12-12T15:39:05Z UpdateTip: new best=00000008819873e925422c1ff0f99f7cc9bbb232af63a077a480a3633bee1ef6 height=0 version=0x00000001 log2_work=22.206105 tx=1 date='2020-09-01T00:00:00Z' progress=0.000064 cache=0.0MiB(0txo)
2020-12-12T15:39:05Z block tree size = 1
2020-12-12T15:39:05Z nBestHeight = 0
2020-12-12T15:39:05Z Failed to open mempool file from disk. Continuing anyway.
2020-12-12T15:39:05Z loadblk thread exit
2020-12-12T15:39:05Z torcontrol thread start
2020-12-12T15:39:05Z Bound to [::]:38333
2020-12-12T15:39:05Z Bound to 0.0.0.0:38333
2020-12-12T15:39:05Z Bound to 127.0.0.1:38334
2020-12-12T15:39:05Z init message: Loading P2P addresses...
2020-12-12T15:39:05Z ERROR: DeserializeFileDB: Failed to open file /home/twitch/.bitcoin/signet/peers.dat
2020-12-12T15:39:05Z Invalid or missing peers.dat; recreating
2020-12-12T15:39:05Z ERROR: DeserializeFileDB: Failed to open file /home/twitch/.bitcoin/signet/anchors.dat
2020-12-12T15:39:05Z 0 block-relay-only anchors will be tried for connections.
2020-12-12T15:39:05Z init message: Starting network threads...
2020-12-12T15:39:05Z dnsseed thread start
2020-12-12T15:39:05Z Loading addresses from DNS seed 2a01:7c8:d005:390::5
2020-12-12T15:39:05Z net thread start
2020-12-12T15:39:05Z init message: Done loading
2020-12-12T15:39:05Z opencon thread start
2020-12-12T15:39:05Z addcon thread start
2020-12-12T15:39:05Z msghand thread start
2020-12-12T15:39:05Z Loading addresses from DNS seed 178.128.221.177
2020-12-12T15:39:05Z Loading addresses from DNS seed ntv3mtqw5wt63red.onion:38333
2020-12-12T15:39:05Z 0 addresses found from DNS seeds
2020-12-12T15:39:05Z dnsseed thread exit
2020-12-12T15:39:06Z New outbound peer connected: version: 70016, blocks=15726, peer=0 (full-relay)
2020-12-12T15:39:06Z Cannot create socket for ntv3mtqw5wt63red.onion:38333: unsupported network
2020-12-12T15:40:06Z Adding fixed seed nodes as DNS doesn't seem to be available.