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

Block 21273

Hash
000000d4bb511224e894382c84f5d2882b897a428a0acdd5cafa7a40d12e807f
Confirmations
19663
Time
2026-10-12 15:55:47 UTC
Median time
2026-10-12 15:47:23 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
2da5b18cb5849fb5abea1a9b405642e69fc5a8147cc0e892643208253646d910
Previous block
0000011a996d88832542de1d23f5a1b20bcf58e5fdd529f9c8843cc28e8293e5
Next block
000000f6dc64e6b000f5170291ef16cebadea912c07606707cbbaf43b0cc4440

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 21273 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
b36c6b70ecf7c350358d928b1ae3edfa… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
2da5b18cb584…08253646d910 coinbase1250