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

Block 39647

Hash
0000004994cdb8e60549bdd008556f3b9db4ea43bf8bcd21e3b41b76148ad535
Confirmations
2629
Time
2026-11-02 09:05:58 UTC
Median time
2026-11-02 08:58:10 UTC
Transactions
2
Size
2,978
Weight
11,600
Difficulty
0.0015097403
Bits
1e02965b
Merkle root
3081dad78ee150ab8610e82d3d0475564443455901029bc4e9124fcd6a12d744
Previous block
000000665a62a81626534d811b85402fbd1d7b4bb620127ceac1ecfa33612171
Next block
000001a8da109b6ecc4db03a293934d41289046b3b0e05d44d09f6d554727fa0

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 39647 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
aad5630fe7463c463d4a86cc0238365a… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
0a2715e38557…a10ce1225431 coinbase1250.0000031
2f2bde8fd785…f5c54564eb97 pays to P2MR122.19982620.0000031