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

Block 28807

Hash
000000c977d65864850900af76a04cacce1b36895f9eb364f3edd58c94dc7e01
Confirmations
11836
Time
2026-10-21 07:00:03 UTC
Median time
2026-10-21 06:51:41 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0021387367
Bits
1e01d38f
Merkle root
64eebe9836bf218a968a7b9af048b03b699f86013e60c0b949987d28168c7889
Previous block
000000806e176b7bebe214e3c0f1ee51e19add283a5723b5cf4a467ad58376a3
Next block
00000051dac85c8a7521b5026d025edb3569bdc8d5632266d62ebf55e82a23e3

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 28807 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
fb87090bb9ff640ede630866fd216dd9… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
64eebe9836bf…7d28168c7889 coinbase1250