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

Block 19296

Hash
000000ad268cbd3265e62abb8d57d91d7d018ef3838b79b2504f7da19b1c2dde
Confirmations
21264
Time
2026-10-10 09:00:28 UTC
Median time
2026-10-10 08:51:44 UTC
Transactions
2
Size
2,977
Weight
11,596
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
43620f01b163284d323961b50b4f3ca6227cd37348aad461a1728ef097670f48
Previous block
0000010f4e6a3c04ca9ec9f9d48d8f92d1b372d628d7ee62628461a27754ade1
Next block
000000a60a7f50913d78fb376da7411bb00eb5a533492fbfdc627bc2342ef52b

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 19296 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
6dc15ed121ee781e32fab4551efb51e0… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
3940d546a944…dd391438f7ec coinbase1250.0000031
66a563e8633d…bfd87184d520 pays to P2MR1210.99987580.0000031