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

Block 18711

Hash
000000ec1cfbe95be3b71d338b775fd394761f166917ed32dc11f414f7e93425
Confirmations
23168
Time
2026-10-09 16:36:18 UTC
Median time
2026-10-09 16:27:31 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
e4f99ec01a4898ce78bd16f3af5eb54f5a8c3a761444dcd91afa4cd6b22b7e28
Previous block
000000d995f62d1179b2bd9bd9e839d8dcb8bbcb07219b9d98e6785bedf5798c
Next block
0000003ab6309ef45a8fc92a3b7c48ee094048ae71483ec25c7053f088e5dcfb

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 18711 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
c45e849946c4aeb3e16cdef31ab846ad… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
e4f99ec01a48…4cd6b22b7e28 coinbase1250