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

Block 21105

Hash
000000fe45de1dcc13b07c6ba3d620c38ecdfa21a1f0cb817ffebd5a2f44bae8
Confirmations
20022
Time
2026-10-12 11:15:51 UTC
Median time
2026-10-12 11:07:32 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
29e1dbdd03642a2bc9993665c31b981e267b318617acea1a54ffca39430b83f5
Previous block
0000009eea004c3e628a9e0062d0dbb5945a41db86feb23c3be48a6a7e1b2b42
Next block
0000002bb9d462c605358fa2dc4368213e5e35579c68608682c92c8b33358036

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 21105 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
b1dbd248953463d5a7c9ba2c9cdfa2be… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
29e1dbdd0364…ca39430b83f5 coinbase1250