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

Block 37166

Hash
00000020c5549deace48aa63329504738884d4a20e736335d6f1ff99b6940935
Confirmations
4359
Time
2026-10-30 15:15:43 UTC
Median time
2026-10-30 15:07:54 UTC
Transactions
1
Size
2,773
Weight
10,984
Difficulty
0.0016063508
Bits
1e026e85
Merkle root
c3f3100d35f597706dff14bdf8d6c4fea4860f6c9598dabe6d50643bad1775a7
Previous block
0000013e85088b55791d57e36a6bfc67a3318766c13d7c9ffcc6df0789f59b97
Next block
000000bdd6276e33400c8ef25446e3f5f55be8ff88d69a2098db3a21d75fe17d

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 37166 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
632cad30888653de49e2899ca59cbf07… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
c3f3100d35f5…643bad1775a7 coinbase1250