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

Block 19384

Hash
000000f2c28a2b8cd472f9ecb56373738f835486bf68654ac6547afb32de1696
Confirmations
20979
Time
2026-10-10 11:29:48 UTC
Median time
2026-10-10 11:20:48 UTC
Transactions
2
Size
2,977
Weight
11,596
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
d12f2a60761b13a7c46b7fa7b6eb40989f96f02b75fa254ba5c851f7e9f1bdd0
Previous block
0000007b868e1927e4f8a32678422b861c006d8bdfb4d1f5a93a6fc31f72bc7b
Next block
000000e943b50c9b2303efc6add64ef239a667ff31522cbf0d378408890af772

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 19384 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
bac5374865f07e2eb0456407957fabe7… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
10b51e6be9d8…752050f4f887 coinbase1250.0000031
03b5562b243c…b6b6b4cb822b pays to P2MR123.99985410.0000031