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

Block 25669

Hash
0000016a67350abad141e7bbb116b814268e2a38e660092cf6321787dde14355
Confirmations
16145
Time
2026-10-17 16:54:31 UTC
Median time
2026-10-17 16:46:44 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0025748176
Bits
1e01845f
Merkle root
63c85afe98d0a736ec20d0c804d6fddd935ddd31e24a9bbed681762ba5018cb3
Previous block
000000100680aae3b476718a6fbede4fc8be15e8cc0415f1e89dbc7a8c053c37
Next block
00000080070ba99e50cc21a7c64ab25e48aff4caa706ad5725f0867184aeb684

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 25669 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
c0e6fc297330f4541095504b49d5ae9b… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
63c85afe98d0…762ba5018cb3 coinbase1250