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

Block 21279

Hash
00000091ea429b3b4c43df9c20df169c62a8ab9e1ca254c865d4ca1c8e841892
Confirmations
19487
Time
2026-10-12 16:05:30 UTC
Median time
2026-10-12 15:57:26 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
36c6babd735e099155b7299ef5c25fb2e830c135740cb30e6d3eceb2b63d32a6
Previous block
00000077a4cac96415c55daf89876a280ad9e2b1f18d067770c79a86fc024729
Next block
000000be2ef6f4b487152db2b43f26c4377898750b5d116fe058b77159478823

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 21279 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
afa8e6bdc0e0d75e85330cff4d52622c… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
36c6babd735e…ceb2b63d32a6 coinbase1250