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

Block 21417

Hash
0000006755ef18c651036a65e09299fc1eccd8c31b1893c024a4ed5813f3f564
Confirmations
20741
Time
2026-10-12 19:59:43 UTC
Median time
2026-10-12 19:51:56 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
2f3881de36fc197c6c7a1427dbc584194d2647fb9a4bfb1c9fa95b9b95642ae2
Previous block
000000926195f3e79e178b04d781bdef3e0d219b9cafd87bacc3b5782fe132d3
Next block
000000a1105808cf5bf35c556401409d040a72c447bc884ad8b78decd3b8584f

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 21417 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
0f2ecf75a0118feae4a4708162d7bd4e… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
2f3881de36fc…5b9b95642ae2 coinbase1250