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

Block 25260

Hash
0000006440785412778a39a3086d7c657f8a5f2987208dc598fca6a9a64ea117
Confirmations
16848
Time
2026-10-17 05:43:01 UTC
Median time
2026-10-17 05:35:11 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0025748176
Bits
1e01845f
Merkle root
56d3791c28dfd005d301a17a7c164dd81e715dbc3aa40a334a257cd9fc1bdf39
Previous block
000001016a1a68f2220356af4a7af975859850574fd5e1dab509daa8fb90b0b7
Next block
0000003f8fa6ee628c4fd77012001f9d46926a74c6db1e2def7b7d6b0f74e079

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 25260 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
7aef0a355303d2cd505950e40a92ec28… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
56d3791c28df…7cd9fc1bdf39 coinbase1250