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

Block 20756

Hash
000000d7fbfe78de438a2cf7fd5106006bfb824aeca9cf34718e576806aeedd1
Confirmations
20650
Time
2026-10-12 01:37:07 UTC
Median time
2026-10-12 01:28:42 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
821e16aaeb0c01848074eec34e71889894aa7d459d8ae31299cd8279342fb875
Previous block
0000002cc903ddbac98b0582c91e40a8afd4495e325ac95a0ddfb83cb13768ea
Next block
00000016d8a572c917f153622134804b7dfe4b998d5598350591d6ced80aabaa

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 20756 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
f3a1cde3558da6465a6f4ecf724c7ab8… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
821e16aaeb0c…8279342fb875 coinbase1250