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

Block 37990

Hash
000000647f6ee717ec723537cf3d95807c300beefbf979c083bd20e8e6a03bad
Confirmations
1876
Time
2026-10-31 13:12:28 UTC
Median time
2026-10-31 13:04:28 UTC
Transactions
1
Size
2,773
Weight
10,984
Difficulty
0.0016063508
Bits
1e026e85
Merkle root
3596ee7c6a12cda7a1a9b40c16d8f5e87234fdcb3d423c1054dc536800220313
Previous block
0000010b26d352341ef7bc41f9fd6dd30ed06f727e982ca914a41461977b59e3
Next block
0000016d3b92d662f1b4c3bc8dd3ef148d7ae11e2e37e9002784c26eb2971bf3

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 37990 is at or above the activation height 20000: nodes that enforce M2 accept a block there only with a valid ML-DSA-44 block signature.

The node behind this site enforces M2 and holds this block, so its block signature passed the node's check.

Status
In the form M2 requires, followed by the signet solution push (the classical signature)
Signature
3ab899597fc7253ab9084eb934f1a6eb… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
3596ee7c6a12…536800220313 coinbase1250