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

Block 19273

Hash
00000039ffa7ebf6079d92e0d547a77344f4855ef4ec214f35fdc89560e5e1db
Confirmations
21616
Time
2026-10-10 08:21:41 UTC
Median time
2026-10-10 08:13:17 UTC
Transactions
3
Size
3,182
Weight
12,212
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
f21b26a19ba783fa482b5f6257d97a0dcf686ffa0fc7a1382215442ddfdb4f3a
Previous block
00000085d6146b53927ae730b4f4e4f48fb2780efc86b3e9306c3b82e9694407
Next block
000000a0f99a27a964ba1acd3877725aec838cf839a607997e9de88e0501884c

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 19273 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
f47c28b44de58ddb49ca2325ddc03a79… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
a1199423bb8a…4ce656758d9a coinbase1250.0000062
49e7c0ac3c76…cff945335b96 pays to P2MR1213.99988510.0000031
d3526750e3ca…798f04a7b7bb pays to P2MR1245.99998430.0000031