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

Block 37707

Hash
0000016cbec10e0f7e711a04bc0d61670b3a6af4718c1640cace3a82ed397b7a
Confirmations
3922
Time
2026-10-31 05:41:04 UTC
Median time
2026-10-31 05:33:08 UTC
Transactions
1
Size
2,773
Weight
10,984
Difficulty
0.0016063508
Bits
1e026e85
Merkle root
daa6e880d8129401a2c35b285a3f64d4c47918844e07d2bf0620152adb681b64
Previous block
000000c222df4723218ac3435ad072af7d63e94009843bb8864aa2c27773e71a
Next block
00000083b63493abb568d8daa7ebb550029ae5bb3458b1ded0803e94fd216b89

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 37707 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
ed23f393d2922a930058fca9d98fd487… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
daa6e880d812…152adb681b64 coinbase1250