Ark-0
Ark-0 is a test network for trying things out. It may be reset at any time.

Block 22173

Hash
0000001acf4735b03d61b42f9017586a1e2c58cb5d6a774a9dddf111392e0d88
Confirmations
20182
Time
2026-10-13 17:03:28 UTC
Median time
2026-10-13 16:55:08 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
d206731778cdc60b440341fb6ae8e6fc58f602e4ba4a83ec17eda7f7dc35f94d
Previous block
0000008486e71166eaa86552c9b8e9af96bedaeb2ea92684c5d1906bca59c2bc
Next block
0000011cf1ac065c02734e8acb5c5fa15797f7d0848f9c3e63065774cffd8012

ML-DSA-44 block signature (M2)

M2 is an experimental rule of this test network. From a height set in its build, a node that enforces M2 accepts a block only if, besides the classical signet signature, the block carries a valid ML-DSA-44 signature by the Ark-0 block key, in its coinbase's witness commitment output. This page shows that signature; it does not check it.

Block 22173 is at or above the activation height 20000: nodes that enforce M2 accept a block there only with a valid ML-DSA-44 block signature.

The node behind this site enforces M2 and holds this block, so its block signature passed the node's check.

Status
In the form M2 requires, followed by the signet solution push (the classical signature)
Signature
2117cfd87aaae52df8b744e170f69d53… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
d206731778cd…a7f7dc35f94d coinbase1250