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

Block 19931

Hash
000000d58394f9c757b8a4ba0d6fd712dbc06c3919864c2809800ae2ed3b9af1
Confirmations
22135
Time
2026-10-11 02:42:57 UTC
Median time
2026-10-11 02:35:06 UTC
Transactions
2
Size
2,977
Weight
11,596
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
3809407137c702fc80d293087c52328b9941dc400226ee1e3e9c75afcb9dca79
Previous block
0000007c998c8c89978b35960e74c0b383a089d3eef6a5da0230e0dd4bc4b0f4
Next block
000000bedd82400f11c0336f2aa108652f14a9d9fed10947dda5198b5742e127

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 19931 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
ee71b86d4408db293ed47d1af6c526b8… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
aae701e5f3fc…8c3479fa8703 coinbase1250.0000031
37d313e8a9da…50c7f755e74d pays to P2MR1229.99993470.0000031