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

Block 19325

Hash
000000ae334981a1e0bd04b3e69a2ad50fa9b14a5dc96fb84878f9665f95b848
Confirmations
21900
Time
2026-10-10 09:49:51 UTC
Median time
2026-10-10 09:41:42 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
72d13d11a88127ea5298d4057739f33f8b343a5f13eb529f14d5a3b535ddabe3
Previous block
000000890b03fc55e91c0bb1fd817e7287155568cdf68b63dc69c400025517de
Next block
000000a438de2398212fd8f06dd0eed9459c46ab05590bbf67e9809bf1b310d7

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 19325 is below the activation height 20000: nodes do not require this signature, and only log the result of checking it when run with -debug=validation. The block producer adds it from height 18000 on, so that nodes can check it before it is required.

Status
In the form M2 requires, followed by the signet solution push (the classical signature)
Signature
7ebadaec1051a301dd9fc8b2b11613eb… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
72d13d11a881…a3b535ddabe3 coinbase1250