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

Block 27678

Hash
0000005d7f365c10ecbd8590e72a9342acf1bcb42ec718a212f3cffe67914ac8
Confirmations
13342
Time
2026-10-20 00:22:34 UTC
Median time
2026-10-20 00:14:16 UTC
Transactions
2
Size
2,977
Weight
11,596
Difficulty
0.0023644668
Bits
1e01a6ec
Merkle root
414177bdf8576f1268a256d8bcb9ffc56d7bf9325fd20032ddcacf3b2d075ab4
Previous block
000000861780f555c1cb79f084935cd67ae262cfd95b1f75518d7965b4e64514
Next block
0000005fa861bd5eb2aa757024a2333b96c6e923c3d9cb36a9f1e49e6377c6d3

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 27678 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
4efaa1f6c50c7fe81ab65ce96a907de9… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
ac8a0ec57d73…432f42618f07 coinbase1250.0000031
2735ceba5135…220223485198 pays to P2MR1221.99990990.0000031