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

Block 25419

Hash
00000100bc3c6c1c236acdd2428ae853c5c72afc9c41baf60d85754c6468f717
Confirmations
14822
Time
2026-10-17 10:03:39 UTC
Median time
2026-10-17 09:55:15 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0025748176
Bits
1e01845f
Merkle root
74708de2027fa5f0f357ac591f3564b59ac62ab5440d2e54685008a3e57cf9f7
Previous block
0000013526c8e80c77a3d1e5933a2cee01a17cacae8b4830f9dbba20b22424b5
Next block
00000057eb0be3eea2538a7c11264f9097fd1f4f2fcf0ecd5f98a6eb593afe50

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 25419 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
490c10f3fe6d1a737817301a039f8163… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
74708de2027f…08a3e57cf9f7 coinbase1250