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

Block 21953

Hash
000000ab7f475d871e6cf7aedd22812a695d51a7c7705e10cb6815ca7177f933
Confirmations
19396
Time
2026-10-13 10:56:55 UTC
Median time
2026-10-13 10:48:38 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
52c62d61ef233d953203be6cda92eeb26bc113b3b5504986193e388f8c2608b0
Previous block
0000000de164874b5d98b3915fe6f45497e0e36ba769da53b0ecacf3228277d9
Next block
00000013b7507dec81a7399b31cc7a97dd48b6b19bb4eda98dff804f6a6febb8

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 21953 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
43d249acf6fbdc03d39e62db8548471c… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
52c62d61ef23…388f8c2608b0 coinbase1250