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

Block 21951

Hash
000000dbc039c65e8e7198735581c8b5b202380f843dc6ccc5b008d498f7a7da
Confirmations
19274
Time
2026-10-13 10:53:37 UTC
Median time
2026-10-13 10:45:26 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
60cf9eb0c33d782e0b6e6a131aec5d2c39cf453caf70387a3b7439b4632dbb67
Previous block
00000058b3b4044b49e83102d19739ea1c3781d80069bd720cecad7a804534d1
Next block
0000000de164874b5d98b3915fe6f45497e0e36ba769da53b0ecacf3228277d9

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 21951 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
040074ef0eea1bf2b29ef0fd08c61fe7… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
60cf9eb0c33d…39b4632dbb67 coinbase1250