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

Block 25223

Hash
000000d296de8921f3cc82b2bdaee29784056bc2e5fef1cafabac78eabcc5199
Confirmations
15396
Time
2026-10-17 04:42:38 UTC
Median time
2026-10-17 04:34:44 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0025748176
Bits
1e01845f
Merkle root
2691d45f3f0272164e51b00416b2a581d1ae00afd28efef9bbbc0f4efeaf7f07
Previous block
00000131a39d7f11029a8c60388691d61f58d6cf1570da2585fa5bfa5a56115e
Next block
00000165a8516e89b6724e23dfdb93a3c5df234c43bc75afb2181e3eb86d603c

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 25223 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
7e2347411594a1053209bd3ed7d96b14… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
2691d45f3f02…0f4efeaf7f07 coinbase1250