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

Block 21599

Hash
000000156fe41f765bdc748a2c95ad1e2e483e43458a70aa79ca99d4f286d732
Confirmations
19845
Time
2026-10-13 01:04:38 UTC
Median time
2026-10-13 00:55:46 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
c9ce6dea7401872cdb2ef10c04d743e1f119f4b0e15edb25ff7558d18381ca5b
Previous block
000000aa116931f3bb40eb49aa7e12ad4c0868bd369e1ef368808620fbe1cf57
Next block
00000075b24762e2f369ea3e15cfcee1a1396c0a122ee6743331bdfa4720dfde

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 21599 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
05ef8d8bb913f0ff2dd34e98ede56404… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
c9ce6dea7401…58d18381ca5b coinbase1250