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

Block 21509

Hash
00000032ff6273801d7148d4c3c029352c717a76d100391c54b474401950f8d9
Confirmations
19777
Time
2026-10-12 22:33:16 UTC
Median time
2026-10-12 22:25:16 UTC
Transactions
2
Size
2,977
Weight
11,596
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
bb892a0c0ceda4c828fda5792b0ffdd41f13cab870251c1ca39a99b550a8cfff
Previous block
0000008bd3f0367c7288d4353640d05b92d2f612baeb44536c0d72ebb47b596b
Next block
000000899be8defb003e07f293ed87a35eb13f29a6061b4c2d5e6fe9f30f9c6e

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 21509 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
e8b774f5062a47bc49c621fefcec8ad4… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
83c0eb119be4…75febc66dd28 coinbase1250.0000031
38f9ef155616…3ae149361750 pays to P2MR1213.99988510.0000031