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

Block 38868

Hash
000000640b9b6cff1bfe4a4cf844bf83610ef80f4c67ff0ee538c65b83cac881
Confirmations
1729
Time
2026-11-01 12:28:57 UTC
Median time
2026-11-01 12:20:59 UTC
Transactions
1
Size
2,773
Weight
10,984
Difficulty
0.0015097403
Bits
1e02965b
Merkle root
d24be2f7b0bd9ef5f76a8bb8a3cff8f07d41ef3ded72e0c35b0937fa46c85bdc
Previous block
0000007df4f0e342384e41f5f3078710e8ebd48764fe484c1655a97d9ce8e6f9
Next block
000000fdefb756973f4387ecccaa356a4a2511dac52aa288d4137da3a89f64e0

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 38868 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
56caa20e4588b8bb39be68bf096f10da… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
d24be2f7b0bd…37fa46c85bdc coinbase1250