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

Block 25853

Hash
0000011ca8b130008d8596785fc2bcc13a34d98bb4ba72e732a7192b452150b2
Confirmations
15953
Time
2026-10-17 21:52:37 UTC
Median time
2026-10-17 21:44:39 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0025748176
Bits
1e01845f
Merkle root
c2e766cecef1787b157953cb926666c1f60ccbd957ab47e825c4cb55a1a236cb
Previous block
000000dc942b1741f5155c822f127d50480274117a46a889e65bfe1dd3dad2f6
Next block
000000276a07ee4f2d44091bf78e0181e0ddd5ba6063dc5b2d6d9b6a3c8f13a9

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 25853 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
86823930178315a89f4d651ab766e50b… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
c2e766cecef1…cb55a1a236cb coinbase1250