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

Block 37830

Hash
00000121253507638f686559042ee0e2cd190385caf5aee2d833e41919160562
Confirmations
3303
Time
2026-10-31 08:57:46 UTC
Median time
2026-10-31 08:49:44 UTC
Transactions
3
Size
3,673
Weight
12,952
Difficulty
0.0016063508
Bits
1e026e85
Merkle root
ec7c3befaa220431fd589f0b33133cf2cc78f5b76bf5b841032db0aff7850a05
Previous block
00000037b0678e458ee3663472d8251edb8c3e313f2b6c68fca739a1c051d20a
Next block
000001632099c167c2e339f75e09d8a75cf039ce75cda69861e131541e050167

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 37830 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
0707f8c7455c6135f62ab3e4a64429d0… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
c0420902c724…ebc4ed0c910f coinbase1250.00000984
9d3176e4afc5…8133d07cd63f spends P2MR pays to P2MR220.001995080.00000492
ae44d3672ad1…9528a6f33b40 spends P2MR pays to P2MR220.001990160.00000492