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

Block 25613

Hash
00000086b8a4fd83bd7c60f87bc82451de7dc9b0112f92122bb77bed523723a8
Confirmations
16499
Time
2026-10-17 15:23:30 UTC
Median time
2026-10-17 15:15:31 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0025748176
Bits
1e01845f
Merkle root
c97fde2050a49c2a99f752824378b9b4c4c6117ec860ba5515c0d9de09663cc4
Previous block
00000018e2a405bbeb21c5d7df2ff7b8c93a85d62a66423c722fb2a9e9d038d1
Next block
000001404c5fde6efb57072b07523b91b566b4c3d9bb80897abcd6976755c1dd

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 25613 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
4769ceaca8b597a4bd8e81fa504a717a… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
c97fde2050a4…d9de09663cc4 coinbase1250