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

Block 18535

Hash
000000e5ad358dbe442fac04bce0e10bce51600b6259add389a5c40ff703e1e9
Confirmations
21836
Time
2026-10-09 11:46:49 UTC
Median time
2026-10-09 11:38:49 UTC
Transactions
2
Size
6,706
Weight
15,325
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
4e2ce7ee6e70c62184021999bda9e34cdc551ab9582a11e9a39d38e7ded4d180
Previous block
000000296296e5d6af9386aeb6d3ba670d0fafe83f3916fbdf0626b6fd7abce9
Next block
0000007b5afc1614e738d68e812f8aa6cb4c77efd942d92018f4803835f2fab2

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 18535 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
7cbb33dc2651dd94354ba5b0df18c926… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
6fb4b41256e1…f8181aa6ed05 coinbase1250.00002174
dba2f0bac749…9d0beb92445d spends P2MR pays to P2MR120.999978260.00002174