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

Block 19041

Hash
000000befcb02396e004c2b74fbb45ddc9774c903d3713244e11af41bdd96b1a
Confirmations
23006
Time
2026-10-10 01:49:33 UTC
Median time
2026-10-10 01:41:03 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
4cd77d494c17f8d039368c7ec513a8261e48355283f40fb9b30d048f5dd2899d
Previous block
0000005281fb5604994e77d643a3cdacc079dcd83e506fa85975cfbb1061ca21
Next block
00000003aac0b7d4572f2523b95ed4314aa9187c9b0986eef63b9c658d426c5d

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 19041 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
faa12b2dbcb055eb13b5aeda9bd073c1… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
4cd77d494c17…048f5dd2899d coinbase1250