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

Block 20391

Hash
000000d821e3abf8f7ab1e8acbec3746d8dc725ad8cf116f00a016908d87de09
Confirmations
21330
Time
2026-10-11 15:35:07 UTC
Median time
2026-10-11 15:27:02 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
eaae2dcfca70e4747043c9c898a66787b9c7a8f7d52f838b760f05e08f976fa3
Previous block
00000070798581f5f31d7e556b57008bc41bde29bd686a7bd25960bcd4f20bb5
Next block
000000323115a9d72616344eb21e2869ce123be6147f15a3613b649d5ba60ad8

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 20391 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
7b209425e5847ca772479478704e4149… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
eaae2dcfca70…05e08f976fa3 coinbase1250