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

Block 25268

Hash
0000003628b3063bfea72373f1f91ea49703a39ab1db23028ed4c56c91cc5dd5
Confirmations
16612
Time
2026-10-17 05:55:33 UTC
Median time
2026-10-17 05:47:35 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0025748176
Bits
1e01845f
Merkle root
7b8108624ee96c4015df17dac019cfa2ddec39a1535a855229cf2f36ac537a96
Previous block
00000111645e5e4ea1f4c8aa214d255ae87c8c07e87ff0bc03b18787c7d85c5e
Next block
00000147c0fa36ad84f200cbd9f8ff2e37c88e4288543e2362e111b8df8e6a78

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 25268 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
4ecdd1b350601d654d89a64885b387d7… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
7b8108624ee9…2f36ac537a96 coinbase1250