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

Block 19331

Hash
0000011a8d3ceae1a2a2ba9fc6a2f8186489ea944fd2930531a0c78e5254ad55
Confirmations
21580
Time
2026-10-10 09:59:52 UTC
Median time
2026-10-10 09:51:37 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
3d43738f36457db32d9a4a03756af4bc1e73bda6f5bbea840ee52a75ab455278
Previous block
000000f802262e26c1a31ef2e8f132d4169e71e9c946977c1ee6e9923f045c01
Next block
0000009d05ac70303eda412337b1744ec372342333d5cdc6bb7dcedfe468bad4

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 19331 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
6c8512f0efdcd118ae03dd62cd576db8… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
3d43738f3645…2a75ab455278 coinbase1250