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

Block 25254

Hash
0000008a4892f8fea60bf7077794f5e0e3701818208bda489e70b2534479ebb8
Confirmations
16877
Time
2026-10-17 05:33:22 UTC
Median time
2026-10-17 05:24:58 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0025748176
Bits
1e01845f
Merkle root
2d864294993ed18898d4aef65e392cabd8b02e4ec6a2590d9743f6d3bbd3621b
Previous block
00000127031c4012b4adc0e3a52af566bfe17fa38179e507c3518a7b70ba64a4
Next block
000000a361d0d059a9d44c1e7fd6bedf138cfc4a267c20db3e78177e9fab0faa

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 25254 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
b7f84a0933bfacc4408f36444e1a5a53… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
2d864294993e…f6d3bbd3621b coinbase1250