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

Block 25252

Hash
0000015072f939e0555567f5f761318e449ffbdbcfbe97423e720c20f2c7c5d1
Confirmations
17026
Time
2026-10-17 05:29:56 UTC
Median time
2026-10-17 05:21:48 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0025748176
Bits
1e01845f
Merkle root
3b530b54baf810f9e6f6cade506a962071bd4b393df385d2873e21d13e1082bf
Previous block
0000001c87fef49e95e1205dbafab6c4bb126c47e0ce57bc4b696d3cb1a5e869
Next block
00000127031c4012b4adc0e3a52af566bfe17fa38179e507c3518a7b70ba64a4

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 25252 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
a12c423f7b9b6001e093917fb136d1c9… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
3b530b54baf8…21d13e1082bf coinbase1250