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

Block 19432

Hash
000000766e4dd7d92c0cfbbc25e6f4ff34ca1502819a15d033cce99580ed2664
Confirmations
22062
Time
2026-10-10 12:49:49 UTC
Median time
2026-10-10 12:41:20 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
0dd1913bbac1984270888f872d3d0be880c28c405220ae69dd4f42f4488e056c
Previous block
0000008d79d1c7f7c5d2c4738b8be1d555f34d51d87ec1ae132cb665d15cf1d1
Next block
000000daba98c03fb303e6fec6157ca87d582c7127f1cf0d68b3a58a886ce3ab

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 19432 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
5b706e36825024ccefa71c1fad062fc9… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
0dd1913bbac1…42f4488e056c coinbase1250