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

Block 20818

Hash
00000011ddd56fd394df4fc22cbfc060668278945eaa4cf6872db2e1569fa915
Confirmations
19897
Time
2026-10-12 03:18:16 UTC
Median time
2026-10-12 03:10:23 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
b801e0e17e7b35311f5a07b3fe7fd5f12b93c0bdbac6721df2595fa2298947c6
Previous block
000000e7581a0e7cc5a0a264c171651e1aee732fff32ce6c4c07371581f33db0
Next block
00000051ed6d6f427b1d3abeef2e281de3231e016032bb362ca6d6d0c9849002

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 20818 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
4cee3d0871d49a1b3acdb25479e79104… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
b801e0e17e7b…5fa2298947c6 coinbase1250