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

Block 28566

Hash
000000a9b307ffd3e1da222a7aeb40b90592dabd52b97c81ed51a39608041a7f
Confirmations
11987
Time
2026-10-21 00:28:29 UTC
Median time
2026-10-21 00:20:36 UTC
Transactions
3
Size
3,289
Weight
12,442
Difficulty
0.0021387367
Bits
1e01d38f
Merkle root
55a332132afb60f459b16f78072dcf3396d806e81760e389b098da7835bb710f
Previous block
000000487a2169b5b1f0359a9eaebebb02baefe2183e1b820259053f7baff3fa
Next block
000001a8b7eee0f9cd8b97a41ea32ee31a757e6885ba8b8286aa05ebee5e5eb4

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 28566 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
f18d7e6a1df7bce82d8c0b5bdcb30475… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
dd6568e06ebc…7debd6dcc204 coinbase1250.00000734
a0316688f12a…ce64b365ded6 pays to P2MR1215.99989130.0000031
a9adad57e5ca…d23584034aee pays to P2MR221.480179870.00000424