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

Block 21049

Hash
0000002badef3281a187eee812b4ca0e50e6a0f9c51a8c05f8a8a731f2b49d07
Confirmations
20446
Time
2026-10-12 09:42:27 UTC
Median time
2026-10-12 09:34:22 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
d03e2f7d7e2cc5f7e1a3484c42a191af89ac3222b4467d7c8481ca672042d86d
Previous block
000001366ae3eaf795aa877f78114f8c04f2d02047c907139e0976ef2bc0cba0
Next block
00000033fc06bc945d94ebd6444d9a4be92dc87b7270a4d0b244772c209405a8

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 21049 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
aa8ee5752b63d23a110b895090e49328… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
d03e2f7d7e2c…ca672042d86d coinbase1250