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

Block 37556

Hash
0000004cc4120295bf74bc599cee0eeb996da9ee3a2965fa4983af7cb675bab9
Confirmations
4738
Time
2026-10-31 01:41:46 UTC
Median time
2026-10-31 01:33:50 UTC
Transactions
1
Size
2,773
Weight
10,984
Difficulty
0.0016063508
Bits
1e026e85
Merkle root
9eebe48c43f4b7709a00b8cfa4982192a0cd2931987fa1e6be67a43645a36f33
Previous block
000001f2fef3df53c0a20384e530052137f6c85d44db95be04b735d89772abe9
Next block
000001d0164cff780da70eb2b2efd05bcc16d1268fe30efecaed4193e899860e

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 37556 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
592342e5653edaecdb5c98749940c0b8… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
9eebe48c43f4…a43645a36f33 coinbase1250