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

Block 39551

Hash
000000c63aeb03d01465153eea603660a2b9bd39e9e86cb25f830da57fe33477
Confirmations
118
Time
2026-11-02 06:34:22 UTC
Median time
2026-11-02 06:26:10 UTC
Transactions
2
Size
3,223
Weight
11,968
Difficulty
0.0015097403
Bits
1e02965b
Merkle root
c8104783f34fc53b52c882a781e28953a248c225c7fe502200b88cb3261b7f8f
Previous block
00000055ce5545f019acd8d5bd4233f27c9d38b01629bd97801d764e4eb5b22c
Next block
0000011baef65b6035af6815cb3f77ec05d3be43b4975a576e5fe55c198eeccc

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 39551 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
c7031ec9b5e21f7d8802182ced29cd74… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
28f72b4048fc…004f33283fcd coinbase1250.00000492
6e24ffb3906b…d0a903caa7e8 spends P2MR pays to P2MR220.001995080.00000492