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

Block 21274

Hash
000000f6dc64e6b000f5170291ef16cebadea912c07606707cbbaf43b0cc4440
Confirmations
19578
Time
2026-10-12 15:57:26 UTC
Median time
2026-10-12 15:48:55 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
b4c92fe32d79888176c5e4ca8eae9372200eaa921ba2b5c5eb410bde0db8cf6d
Previous block
000000d4bb511224e894382c84f5d2882b897a428a0acdd5cafa7a40d12e807f
Next block
0000001b47561072725533264dce5353c2a80a4878e2c065d25505c49578b88c

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 21274 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
526a72902068cc1424c9c20b888201fa… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
b4c92fe32d79…0bde0db8cf6d coinbase1250