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

Block 21130

Hash
0000008ad0703aa3eeb576a71c97b04d4d96e87e5f44165c45bf4c436b462fe7
Confirmations
19682
Time
2026-10-12 11:55:43 UTC
Median time
2026-10-12 11:47:54 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
68e692ee205354eee127faff81ea315d106acb24d92d3fd2724098a6c5be9abd
Previous block
0000002249f9b54d04a752e3aebabf051ae36a902bffc0988d60c86c0651f7b4
Next block
0000001ee0fd1ed6f7eef61c393d30fa3bcd13c0b20bcf6608ee24fe2e91224a

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 21130 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
ed62be8f3a84de3969641c0a586a74a0… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
68e692ee2053…98a6c5be9abd coinbase1250