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

Block 20338

Hash
000000805dc918f014d5412793b7219537c303c9cd5c7be4976222bbc22ca7ab
Confirmations
20613
Time
2026-10-11 14:07:16 UTC
Median time
2026-10-11 13:59:22 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
9016217113e6db4cd3f20d885c21e843d77911c43c391c3a0a8c9bffee1b03e9
Previous block
000001238c478b45e722a581d0abd0d86cdf9bbe9465286329f79b727add4463
Next block
00000085d736fd2a95b6101ba998b22254d95779f18b521015c905cfb1eb34bb

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 20338 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
a8fa447dc7b39cc09e8fd3d3c99ce7d8… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
9016217113e6…9bffee1b03e9 coinbase1250