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

Block 18300

Hash
000000e8f98703eceab14265a318c517c57f003743d1ddc84235ac0d3b1cc4e5
Confirmations
23846
Time
2026-10-09 05:12:55 UTC
Median time
2026-10-09 05:03:54 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
60cbe5a3b26262a20294211f3e6ad8e66293583d052886ae6bd107e050d1456d
Previous block
000000c3cab1a2646e0d28a67d5c241217577963c6586b3f5bd9c7b76fee4159
Next block
000001122dd80aee6daf4cdb3c86e7b0ac1fa4fb96aa13b3aafb377f0a6ffb76

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 18300 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
2edf3618d5694b76fa8575a1f2b5d334… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
60cbe5a3b262…07e050d1456d coinbase1250