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

Block 18013

Hash
00000079d5d0dd55f5814f3b372535614ffd5ad7bf3e3e524541dbb31992a112
Confirmations
24116
Time
2026-10-08 21:10:13 UTC
Median time
2026-10-08 21:01:24 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0040172004
Bits
1e00f8ed
Merkle root
1b16a127ba4e170cf8c9dc6663003b370d73d76bb5c33ea7253ba823f2b9637b
Previous block
0000009af2225337b080409ed5f84460974d46b41346239a803edab675efc484
Next block
0000008b4560f43af6f336a88bc397191b345d42d263b7029538d1be6f6b2d41

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 18013 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
f05a354df582a4d0204ced222546a3e7… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
1b16a127ba4e…a823f2b9637b coinbase1250