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

Block 21465

Hash
00000061bd9122d36d9ccb0ee948f083dcf59b425f88032bd04de0470455218b
Confirmations
20096
Time
2026-10-12 21:20:10 UTC
Median time
2026-10-12 21:11:55 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
6d098e8fd0c36cc3f6e28dd509cd021c698e382f97e5653919fd5cccb3943994
Previous block
0000001e74240ea5176b09e417dbb0561425e5fb1a529dc0824effd3a70f97dd
Next block
000000160c89af7cf5906e83e4b9244eaa89518f74513e18ee0e996289015f13

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 21465 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
0ae94c71f652ac546461d642062bf5f1… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
6d098e8fd0c3…5cccb3943994 coinbase1250