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

Block 19609

Hash
000000889e4f23451af5311876573ab8b040d20bb42daf4962464045bf509918
Confirmations
22752
Time
2026-10-10 17:45:29 UTC
Median time
2026-10-10 17:37:28 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
287bac681028ce4123bff4103316fb7b6c6a24b1025c53f8e2e8e20a94ec3856
Previous block
00000117e4df6f3cabee3a545b84e9fe1517aff109a33fee8194d6a7168b8358
Next block
0000001e33c84edd2f8263c27174a2b437d704af9d65c7abc70976858ddd4eb6

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 19609 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
aab51d77c340aa13b6ee50cd3da93619… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
287bac681028…e20a94ec3856 coinbase1250