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

Block 20773

Hash
0000007c6be9dab23f0e804120f86ac49e88d6f8c45be85400a5c21cbea5a58b
Confirmations
19721
Time
2026-10-12 02:04:52 UTC
Median time
2026-10-12 01:56:43 UTC
Transactions
2
Size
2,977
Weight
11,596
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
ca8590ef05dc5bf194b88fbe4eb905bbe1e741f53a0c524196e064195f4e6952
Previous block
000000c39ed8dd02d803ce91f49c917c597914305697b26609832059e3fd4099
Next block
00000063ffaffccefe32e230b4d7622825db8910893e33a10725c630fe1b1e15

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 20773 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
3308d5e90a22395ced977d22ced4e322… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
c3df868eaa79…7a1c0541198e coinbase1250.0000031
7bd5e7fe0932…f447046f6a18 pays to P2MR1236.99995640.0000031