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

Block 25903

Hash
000000f00c0db4df58d4c5106a8c2a97f2d179cf15bb46e4a2f81f0708765abd
Confirmations
16832
Time
2026-10-17 23:14:15 UTC
Median time
2026-10-17 23:06:07 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0025748176
Bits
1e01845f
Merkle root
d07ca63d4db8dede89141d864ef31a5d1dbb156bba196d4eb84714ba901088c5
Previous block
0000008fec2d7fd8e1343025e7283eb50d2a47554e1b0ab1d697b6e49bcb6b72
Next block
0000008cdc4c25483e63321f30861cca0921cad762751fbad73ed91d8d3daba4

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 25903 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
972dea224fcf386b3de9125b73711e68… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
d07ca63d4db8…14ba901088c5 coinbase1250