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

Block 28676

Hash
000000c413d88abc6ccb453d8d9b202ff52663267b5370b32d8d72a2e320183c
Confirmations
11732
Time
2026-10-21 03:28:02 UTC
Median time
2026-10-21 03:20:08 UTC
Transactions
7
Size
4,416
Weight
15,090
Difficulty
0.0021387367
Bits
1e01d38f
Merkle root
bef91f89cedc93855aa863d40477533e4ccfaa922991b8ccabda6b857fb03616
Previous block
000000914fcf327e9ce640bed6e54fa4e5ccc389b957c8e017704fc597b384da
Next block
000000db8dd155b4db88a3c0479b0a3541b3ca713d547db65a8abbc4a63753ed

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 28676 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
1ea7819457eaa523973745c76dac96c3… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
395d22a3ec27…cc426f0e8c72 coinbase1250.00002064
af1313d0016c…8a5e556df00d spends P2MR pays to P2MR120.999996560.00000344
97bb93ba8cb0…2811963f6414 spends P2MR pays to P2MR120.999996560.00000344
9398f0f6a895…0a3b67a3b614 spends P2MR pays to P2MR120.999996560.00000344
167624bb89cd…b18cbafd9322 spends P2MR pays to P2MR120.999996560.00000344
def8583ffbb1…aad19742086c spends P2MR pays to P2MR120.999996560.00000344
78109b6f1d30…3d4b257d0efe spends P2MR pays to P2MR120.999996560.00000344