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

Block 25199

Hash
000000dd431855965ea61b98a89456e20a34d67f37f0b722d00340c852b32e15
Confirmations
15399
Time
2026-10-17 04:03:02 UTC
Median time
2026-10-17 03:55:10 UTC
Transactions
3
Size
3,182
Weight
12,212
Difficulty
0.0025748176
Bits
1e01845f
Merkle root
d9f7f8a217b3227e38773a8de12faef116735b7873b09e3ab0d941b0558f3137
Previous block
000000d919dfdd42a78596d6888cab5ff9d9221c87357fbfacb3950bf4b47fee
Next block
000001735842ce33c33f2dd43cb2dd3bd7f96b8d3d4a4fdfb803b2a88da52c08

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 25199 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
ce446aea658f63e8dd746d075e536696… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
b701493031b1…b01451317e1b coinbase1250.0000062
c9d1e10c02d1…c9bd962a5500 pays to P2MR1210.99987580.0000031
93a6da2325aa…eb687be968d6 pays to P2MR121.99984790.0000031