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

Block 21983

Hash
00000045939137a6adbabe45ba804f618f9bff1ebe18dd27bdc622a509ea04a0
Confirmations
18965
Time
2026-10-13 11:46:28 UTC
Median time
2026-10-13 11:37:54 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
ad7e76d8874e72cef1ae6b7e6c8e2e38976bdf6416f97f405172edd17ef5f576
Previous block
000000ee33883742f65b1d5312cd72c7faadf5b7a2be795d8b03473d2abe58a0
Next block
000000ef49d61589d1b89bbfc93bc40ed2dc9f090c58e966524bc0061e26c71c

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 21983 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
b13c3dbf3fcc97d5f536f1dc290fc1e6… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
ad7e76d8874e…edd17ef5f576 coinbase1250