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

Block 21284

Hash
00000041029b9ad837120638b0e8c473eaa3c5ec3b65b629b79a4fea8a628df6
Confirmations
19498
Time
2026-10-12 16:17:55 UTC
Median time
2026-10-12 16:05:30 UTC
Transactions
2
Size
2,977
Weight
11,596
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
31be7bf5ef9060dab227aeb3005fae6464b591476d0f5b0ac5ac101e268edb97
Previous block
000000fcd02483ae9ad83106d5c05449431b630812527ee9e350997ebc6a9412
Next block
0000002b7497861d52316087d461084817dc293a643e611f722f8b0a573dafbf

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 21284 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
1ddf8412b5a2ca7bf0ea908379f76236… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
32b0581ca7cb…d04dabe2bd53 coinbase1250.0000031
d124f1447a21…21d11f617719 pays to P2MR125.99986030.0000031