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

Block 21138

Hash
00000032711ed445f22054a7a9f76ff113c0f7bea97f802051aed765a5f6259f
Confirmations
19455
Time
2026-10-12 12:09:00 UTC
Median time
2026-10-12 12:00:21 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
84ce7ead8c2222a3b6f95d6e1f5b2ff41713f29c59a747723a131b7732cce431
Previous block
000000288939ef5a5325f5a6d446d82b842ce5645c47069d5dd4caf0707013a1
Next block
000000ee3c436d1a6565958161a6228f43f19736593ab5910c3e7bd82e821f18

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 21138 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
1b9514ea5f7d6a7fef056dfadbfa34ff… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
84ce7ead8c22…1b7732cce431 coinbase1250