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

Block 21136

Hash
00000026cc76ae9ca5a89e817608271a76c77a59fe90ffc01579969b6a168f00
Confirmations
19009
Time
2026-10-12 12:05:31 UTC
Median time
2026-10-12 11:57:18 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
7da64926871a94f46d9153e9ac36ee3ecc8d1610a5e00c9b1175e016ebaf63e1
Previous block
0000009a436e2d36ffbc1e512b0718a4d439f0e9e9af7c91ef6e0de0b712e7a1
Next block
000000288939ef5a5325f5a6d446d82b842ce5645c47069d5dd4caf0707013a1

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 21136 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
0c3d7e6f7bd888ff82f2f4f850cdc5e4… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
7da64926871a…e016ebaf63e1 coinbase1250