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

Block 18713

Hash
000000d54c6c5fa15ceb618a988dfc6eced9326ae1b9f36e652e2a7d936d1dc9
Confirmations
23076
Time
2026-10-09 16:39:38 UTC
Median time
2026-10-09 16:31:19 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
24c276b348ecfb42d5ca5a8156409705cdc858b5799bd70b823f9a4747d5736e
Previous block
0000003ab6309ef45a8fc92a3b7c48ee094048ae71483ec25c7053f088e5dcfb
Next block
00000068274cb9a2872647d32b48b95e1d56b072fceb99a3173098cc67306a94

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 18713 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
5771ed22295d6fe4194b2de3b8f6c93c… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
24c276b348ec…9a4747d5736e coinbase1250