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

Block 21947

Hash
00000050bb118992dd65e666dd349009533c78449bf27bf116a362eed3b83e9e
Confirmations
18863
Time
2026-10-13 10:46:57 UTC
Median time
2026-10-13 10:38:03 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
657127694aae0e8b4c6eb7ff8eef166d5d292ceb06609e64f5ebdd6e571441fb
Previous block
000000ab12609297364bdebb8b8b4f4083416fd79893a5ebe5c9dd7dff5cdb5f
Next block
0000009f5e1f95854541634d649b6cefe052748a553b7b7c6a5a02e7219343fd

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 21947 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
2a004a8b771b7d73a8e3a851b33dedb6… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
657127694aae…dd6e571441fb coinbase1250