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

Block 27131

Hash
00000187d9e839384dd1e4b1dda6a24671ad9b8745ae90d2252349d72f235b72
Confirmations
13146
Time
2026-10-19 09:31:30 UTC
Median time
2026-10-19 09:23:30 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0023644668
Bits
1e01a6ec
Merkle root
0b1d1f01ac1073b47d97d3e445cc94c68606b360ec867dc8e9bc851daa6c9ece
Previous block
00000182e648688ae09bb470fa53697f32a08a99dc994dfac5f916a33d847c4c
Next block
000000dcbe672453ad61b30288f26e496564f765bcea9a4fe0e3e7c60704e0f4

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 27131 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
719c16fa74cb3ccd9b86309e6ffc5e45… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
0b1d1f01ac10…851daa6c9ece coinbase1250