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

Block 20516

Hash
00000102feba200a63e380d1886717796fcd9112b70993256879b104fa141dac
Confirmations
21917
Time
2026-10-11 19:00:31 UTC
Median time
2026-10-11 18:52:21 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
56b474eb1bcae5b628b0982b40e3adf504734bd4e39d820239db2b7b72001246
Previous block
00000006c84e8487666c01a0b055b2003556ef7ed23d66c58fabbee447a9be3c
Next block
000000144b6b3e87b8fcd3489b99f4cf6f531090eb7b49f01fa470b78a96755c

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 20516 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
183947e652b848a9a7cd4ee64aef36ec… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
56b474eb1bca…2b7b72001246 coinbase1250