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

Block 21116

Hash
00000005ea1856bdcac6c3820cfe0221d93475eebb70e49857e6086757548e96
Confirmations
19652
Time
2026-10-12 11:33:02 UTC
Median time
2026-10-12 11:25:13 UTC
Transactions
2
Size
2,977
Weight
11,596
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
705f15a1e1f8241ebbc08d9c71367c70bf9508bf4d287590be66500cf0e79129
Previous block
0000002078880d7f7e66c9c964e9413e3f29c652b8ab80e74f72e4754330638e
Next block
0000007da6ae5c99b9efc46df96c5180ca9e3d407a50d4b3974217a72f8f37db

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 21116 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
64f700d15948a79340cf3ed7139827c8… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
7f09462379ca…e9c92f21435a coinbase1250.0000031
040e2b79c86b…4cf7fe8aca91 pays to P2MR1221.99990990.0000031