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

Block 21010

Hash
00000131d346afe0347b376490e091db4018980dc9483a7465208a7ad5db9790
Confirmations
19967
Time
2026-10-12 08:37:55 UTC
Median time
2026-10-12 08:29:21 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
250ab8d3451e5cda6826e16b9daf311ed526c3c25ca5f7d03191ba994f5d0fab
Previous block
0000002af75ee162bcf356e04a14263dd72b4f84e7b35d79c30761ad07be3153
Next block
000000864ef8c3ad352b63e482a03a40b69f9ad919faac65ee5fdbf016a55752

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 21010 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
be9ef78911850f56d82091d4c57e77bb… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
250ab8d3451e…ba994f5d0fab coinbase1250