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

Block 19334

Hash
00000104d7361dbbb75a1ae725301ea6e08a45637de4626dce16d2b4906d6d18
Confirmations
21110
Time
2026-10-10 10:04:50 UTC
Median time
2026-10-10 09:56:34 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
032638f448e10967054133c4e3ede2c22f19bd05913e96fbb2981a180f712123
Previous block
00000097f50b81301a2ff334d671fd8fe12eab78e3c6c3d6448a7e96fc132c56
Next block
00000021b605aff2d2542df7c4cdd97c55d3f0c8fbfcb7e40f5e994fbabc7214

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 19334 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
333cdc3e034d50297f6cbe6139041c72… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
032638f448e1…1a180f712123 coinbase1250