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

Block 21295

Hash
0000008f03a074a4ffa36419b3539918539a2fa0bba7a2dad714ad17d51bd704
Confirmations
19708
Time
2026-10-12 16:36:30 UTC
Median time
2026-10-12 16:27:41 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
4cd9d68ba8578b0c402a18b40ff3566d81fb1f728ec76491c1082eeadabdfb7a
Previous block
0000010cd258a9020b0980865b0733b6191dbe3ef495bd0c8ef0a9909bda9469
Next block
000000be78a8597e28c41d7a3a21b6cf6fefefb7bf76c46d447f5969bf6860e2

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 21295 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
1531fd3714b7d556f7f05941494d923b… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
4cd9d68ba857…2eeadabdfb7a coinbase1250