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

Block 18467

Hash
000000e1a20cdaa5ddb7b9b21e502ae6a39e1f9ea049e95cd0228872d9159d5d
Confirmations
22012
Time
2026-10-09 09:54:16 UTC
Median time
2026-10-09 09:46:14 UTC
Transactions
2
Size
2,977
Weight
11,596
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
3017c5ea650a67919b6229ab2cfa9e6b86d1d11ac54a0f85e6c050026f2f4131
Previous block
00000095378e7bc8ae8820175190074c05c60448230551b6e6b1e697861977f6
Next block
0000002b2d53f95d2fe158ea191ea44604c0da963e92c33e6119dcd8f0120ff6

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 18467 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
34f1443dd4991871a1460316153898bc… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
e56f379effce…c4a21c8c40b5 coinbase1250.0000031
7d5feadb1451…804df9da4750 pays to P2MR1218.99990060.0000031