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

Block 25813

Hash
00000183630c6baab72ced373efa74dcc7b1a2a5c793f4ecd25ef9caff35caa2
Confirmations
16603
Time
2026-10-17 20:48:30 UTC
Median time
2026-10-17 20:40:07 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0025748176
Bits
1e01845f
Merkle root
2ac13b5d17d893198aa1ae67fb5a56549e86d8f1d1123f5d448a3e9607eaf41a
Previous block
0000013ef0539d1107d7aa340b822f63eaef2d4ab504c8781029ca2248ee1355
Next block
000000fd7c7da5c61c4fb463baa93296a2512bdad5a5d72703cd8fce115182ab

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 25813 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
4c9829ed099a488a83f4636ea14d8f60… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
2ac13b5d17d8…3e9607eaf41a coinbase1250