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

Block 37220

Hash
0000003865e80aa2e8d2de6eeeb6ccb6a46a0dbb29e6bb37d496df2537f3eaa8
Confirmations
4089
Time
2026-10-30 16:45:32 UTC
Median time
2026-10-30 16:37:18 UTC
Transactions
1
Size
2,773
Weight
10,984
Difficulty
0.0016063508
Bits
1e026e85
Merkle root
a1e4cb55c5307bbea2e929428d404066ac9cf71e530d5c6b9ae75a5efe4cb3a7
Previous block
000000c7d167148e254b5187b8cf7fecd57654780a2ee8767675d8bd8c353cb9
Next block
00000089ad932e7e35f76ec97d981243dcd7fda43dde24e7898d98286a84434b

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 37220 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
4b9920c704e7ad4d5130f256a455df10… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
a1e4cb55c530…5a5efe4cb3a7 coinbase1250