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

Block 19007

Hash
00000028959a5911683207d9d5d4e9ae4a02ed4d8d3254f212568ea1d9e7586f
Confirmations
21485
Time
2026-10-10 00:51:09 UTC
Median time
2026-10-10 00:43:01 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
99c810dc8d6edcc1682702a060aab6a6b78d8e52ccaa83fd40a097e08510e7c6
Previous block
000000fe987b3c6dbf0b64ffc724056683c86b47c0d1574c098649c1d9c15f57
Next block
00000111adeabcc675ef92a9e4ebcf807ef25b62d1241c256e395729ae2943f9

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 19007 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
bfe31316205304dba1c24964e8c1c052… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
99c810dc8d6e…97e08510e7c6 coinbase1250