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

Block 27243

Hash
0000015961500d94e7f75a2fa79e16529271f3ead8adc6a97a1da5338d57f53c
Confirmations
12940
Time
2026-10-19 12:37:07 UTC
Median time
2026-10-19 12:28:44 UTC
Transactions
7
Size
4,416
Weight
15,090
Difficulty
0.0023644668
Bits
1e01a6ec
Merkle root
4204640dfd239ae4ad70edffd7fa07f877f00a8911986f2e8e354f49332e1558
Previous block
00000109b646cdc6a9b7f2a29a4f86cdc8f9b129e9e40c42bd1aea5cdefaf667
Next block
0000017ec277daf66e9f244d5785dcc16cd2a290e19c085b312ab85f407c727f

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 27243 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
5aa1654e75821722666e787a7fd57fd7… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
8f15e4ca8a00…a4584e5bf975 coinbase1250.00002064
50df2b640864…12614d3efc04 spends P2MR pays to P2MR120.999996560.00000344
70830c365e01…24788d8caa3c spends P2MR pays to P2MR120.999996560.00000344
02348b6c342b…521372a7726d spends P2MR pays to P2MR120.999996560.00000344
fa9d04927c0a…3a49a3886a76 spends P2MR pays to P2MR120.999996560.00000344
34b56c7dff94…9bb859e50cbb spends P2MR pays to P2MR120.999996560.00000344
871cf8125908…ded14a71d4c1 spends P2MR pays to P2MR120.999996560.00000344