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

Block 18453

Hash
0000002af35fd58b5ac9882b550e0ab9e7590f9d18c6a92c38d2c4042fa3c395
Confirmations
22448
Time
2026-10-09 09:31:05 UTC
Median time
2026-10-09 09:22:48 UTC
Transactions
2
Size
3,003
Weight
11,493
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
35ada18f22400ac37c2644fa945c03d0a29ab85d993819ed701c1c3a68a9ffad
Previous block
00000102d494cf76a2723ed80f7473115fc365ac2f28e961d233bb421afadae8
Next block
000000b4c88f495bd9ea2ab00576330bdd2b556fe0110c327992dc616d42f624

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 18453 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
dec82523c7d98525d1f1f5cee52b77ad… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
c227a8d39bdb…5052e26ca2bc coinbase1250.00000258
4ef155ca42a3…1d2de16be959 spends P2MR pays to P2MR110.999997420.00000258