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

Block 20729

Hash
00000081024620cac5c2bc59f91e6ec9fac304c5fbf3afc51672f508ed8050dc
Confirmations
20867
Time
2026-10-12 00:51:17 UTC
Median time
2026-10-12 00:43:10 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
02bac82685f7b3c4cdeae9aa73c1d98da2b73d3b62a8bb98f960a5cb1a0c20e3
Previous block
000000f20b58891d8706a65d4006322a3a8e06386f85f653dc7482f0ebf87e6f
Next block
00000118f336dc7b4c7333e5e4b52890293aa9af4ccf336d159c688b1d5cdea3

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 20729 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
5cace91e566a2a75a98625077f1743d2… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
02bac82685f7…a5cb1a0c20e3 coinbase1250