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

Block 19118

Hash
000000717e9ac1ee7c9e074bb6ba149ef737aa5f4a3d93912a6b97dafeb99c3b
Confirmations
21761
Time
2026-10-10 04:03:57 UTC
Median time
2026-10-10 03:55:03 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
ec903260bd7d17a5ff9d8a8e0ccf859b7e29787192c69fa252f6690fbc1904e0
Previous block
00000061149f08ca733a7cbe7c59c91550152bd11a32d70a0f999c994689706e
Next block
0000001b5efcefccdf90bbaaaf531152ce171781fbe96e999b64de42bf46e801

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 19118 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
86e7ff8ef237f7d6070604dcc91b7b27… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
ec903260bd7d…690fbc1904e0 coinbase1250