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

Block 20861

Hash
0000005d0703d6ffa50eef71aa363b3e426559e95b5aa4c335599318ca8968bb
Confirmations
20786
Time
2026-10-12 04:30:03 UTC
Median time
2026-10-12 04:21:44 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
ca75feaf0687aaab1046663c3a308b78fee60c48a4333376015ddd9bf4740374
Previous block
0000000ef2b84d387387d9c0581d631ba2dd444cea0c6674bfb1f0b281c35b6d
Next block
0000013395d9c5afd5bb9297cb99748ca501025314559e9b828503b83fbed083

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 20861 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
c71a68c2571ca9949faf7da477996b88… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
ca75feaf0687…dd9bf4740374 coinbase1250