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

Block 20825

Hash
0000000fad7c30c3bfb60d6db6a28853322ff10ce40698d0558da75e4c4ef13e
Confirmations
20286
Time
2026-10-12 03:29:50 UTC
Median time
2026-10-12 03:21:34 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
131a5d4fd0dbc5cabc7f3ccd23c6bd0cf125334dc221ca52801101fc40cf0a36
Previous block
0000012d1ae9f83c70d85ebaf8561da39a912ca9ecf55cb36e81de1008a75de5
Next block
000001054307530f11f7dbb5839d74842e1fc00408e787042e1510f5d86d1074

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 20825 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
d269b08641580f939ec92c2b606a593e… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
131a5d4fd0db…01fc40cf0a36 coinbase1250