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

Block 18804

Hash
00000012c623b916bdd9b823021968d6a6906a3f1f41107ce8cf1bd254692ae0
Confirmations
23615
Time
2026-10-09 19:10:31 UTC
Median time
2026-10-09 19:02:39 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
7698776d18bd31f05ee162b3df929344140f14ac8baeb1f182dc602456b9dae8
Previous block
0000004c6a42116f599afdffb87fe8ac856065b1b31673326d485e3ec8e082f8
Next block
000000a934903ceb97c22b1afd528563ecff2271686ce038e7509cd2090f43b7

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 18804 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
6b7f0182497c68a13c2a26007b594812… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
7698776d18bd…602456b9dae8 coinbase1250