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

Block 30003

Hash
000000836204586c345327745fc273e11df2de12ad326b319e90f7735728abf4
Confirmations
11749
Time
2026-10-22 15:22:03 UTC
Median time
2026-10-22 15:13:52 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0021387367
Bits
1e01d38f
Merkle root
4c92e9dd494a3c3a828b0e9c89f3c734c60c274bab2b84e09cbb2406b3773150
Previous block
00000135b181c1a36f3f63937b4d4f6eda3c27b642befdf1bb87d99c68fc14e3
Next block
0000010db21327ef3ee4f406adfa9ddf83d772e6fb8f363a3e20a0eb6e2489b8

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 30003 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
0cc4b3f317b0800f63905f4327f4164e… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
4c92e9dd494a…2406b3773150 coinbase1250