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

Block 27868

Hash
0000007e3c4a7935bc1f543b2939ab582e8905b505584c55ac08e0d6f472a8f0
Confirmations
12885
Time
2026-10-20 05:32:12 UTC
Median time
2026-10-20 05:23:59 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0023644668
Bits
1e01a6ec
Merkle root
852a7c237c0df5be5f42180af9d77cf89fcd7c1ab5aba87f05372f81dede61b3
Previous block
000000b6a8305b9cac61a07efc27d016973d8a92398504895c088a85c12169ec
Next block
000001a3dbac5a7578a44bb20a91f5dc3d12246e5c2a4dd72408df0b384d6b8e

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 27868 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
dab235cf5b4e0a4302abd8a536655b89… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
852a7c237c0d…2f81dede61b3 coinbase1250