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

Block 25667

Hash
000000180faf53c1e6cc556f2af06092deaa3c9e747b7f8d40cdc70e82c722bc
Confirmations
16085
Time
2026-10-17 16:51:25 UTC
Median time
2026-10-17 16:43:42 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0025748176
Bits
1e01845f
Merkle root
63e0de046274e1e01ecc0386acc659d5d695240fcf50fb0b9a333a717d0fc960
Previous block
000000cfbfff069932ce183fff16bd786ddd6c085f8230a83e0c814d55bacd9b
Next block
000000100680aae3b476718a6fbede4fc8be15e8cc0415f1e89dbc7a8c053c37

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 25667 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
7dc97189b2ac644d77c1bfc694f35c21… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
63e0de046274…3a717d0fc960 coinbase1250