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

Block 27430

Hash
000000c5895ea7804d5e3a06e52b7eda3b256a3a8e24a7ba3b664d3761091243
Confirmations
13014
Time
2026-10-19 17:42:29 UTC
Median time
2026-10-19 17:33:57 UTC
Transactions
2
Size
10,499
Weight
19,112
Difficulty
0.0023644668
Bits
1e01a6ec
Merkle root
5279059c01e9e3ab69add601c91808ad4feb06ccdd2cf2ce24521264532e1ae9
Previous block
000000d5bb3f7be6839b324421a7195cc9ebab7172b9f5686156c63ecfa88df6
Next block
000001841c7ff8d5c10b77300e5be8be7a91db063172b40a1c58cf9d4e7b1104

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 27430 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
c44ea13294acadd2edfe37291d94226f… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
86ffd0f490e0…1e992a592a8c coinbase1250.00004066
7a07267566bf…4c030eceece0 spends P2MR pays to P2MR219.999777880.00004066