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

Block 25819

Hash
0000017f6e4a332de8107ea714011944757f55698bc1c949e0c363fbcfe1f6ce
Confirmations
16574
Time
2026-10-17 20:58:11 UTC
Median time
2026-10-17 20:50:10 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0025748176
Bits
1e01845f
Merkle root
b19385302f5061c613817369a8c0d1d74a42014c856a3cda2023bbf2f1c95f1e
Previous block
0000008c033bf7c4116d367d5348005ec318c728d5da3781191bc13a74d12f97
Next block
0000006aac903094b8e012c9855ca708323151c88c716dd8748283b7414d4394

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 25819 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
60c4fea4284d8f5c6f4283008486fae1… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
b19385302f50…bbf2f1c95f1e coinbase1250