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

Block 40821

Hash
0000004b71cb572aa9ada7e5d3e259a17426e6ecc28cbc0644eca2c5ebeea4ed
Confirmations
10364
Time
2026-11-03 16:08:03 UTC
Median time
2026-11-03 16:00:27 UTC
Transactions
4
Size
3,947
Weight
13,637
Difficulty
0.0014274344
Bits
1e02bc8c
Merkle root
ed5ceae85ad335c62c73f4723dc31ec85df5129ec3092488307bf2d3914956e2
Previous block
000002294504016cb627c184e5a1a5f162dacfcd8399f482450d1515e0e9db51
Next block
0000016e1f740bd95754e080b81bf0da06263741bd47051e938d25abfd0b206d

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 40821 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
861dbb4745542ffeda1b4ca8fbe9cc2d… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
da0f92f46a8c…90ed4f6361b2 coinbase1250.00001328
5a23f73eb888…ad72317e29d5 spends P2MR pays to P2MR120.993975920.00000344
3559adf16344…544c5ef83aa3 spends P2MR pays to P2MR220.001995080.00000492
803aa3079e3a…a45dd49d9ed1 spends P2MR pays to P2MR220.001990160.00000492