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

Block 39991

Hash
00000101b2dfa032159f0f66f994e3afe33d4af6ada841e5905d0b84285a9d3f
Confirmations
5428
Time
2026-11-02 18:11:32 UTC
Median time
2026-11-02 18:03:44 UTC
Transactions
1
Size
2,773
Weight
10,984
Difficulty
0.0015097403
Bits
1e02965b
Merkle root
368c3ab2dcc7b8849a0a2839c678bb293b354ad8fae5aa0baec7e29836f16d8b
Previous block
00000203e134a8978d72714070032db93cdcc38b0dddd6e0fea403c8d098dada
Next block
000001c483e70bda25f1cb8b952d894160cd53edcb8355eb1089a3559cd5ea17

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 39991 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
1f07bf26eb19fcddf15d5d456648e9b9… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
368c3ab2dcc7…e29836f16d8b coinbase1250