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

Block 19967

Hash
0000007c3b067cf7784edc77a4044f1a614ba14e42b09a91768ea1a30d31ca25
Confirmations
21425
Time
2026-10-11 03:43:59 UTC
Median time
2026-10-11 03:34:38 UTC
Transactions
2
Size
2,977
Weight
11,596
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
2f2f32a623f98f3d530692325f9cac13ab36853b1832eada0729fbda8d227ee8
Previous block
0000011b13714558253aea89c25e80c7a05981331d27ca402e127451dd01b6a0
Next block
000000bd406c794ffd13c2692a5063d4a5bf8afbf86ff8ec6e6ee5a08eb8955e

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 19967 is below the activation height 20000: nodes do not require this signature, and only log the result of checking it when run with -debug=validation. The block producer adds it from height 18000 on, so that nodes can check it before it is required.

Status
In the form M2 requires, followed by the signet solution push (the classical signature)
Signature
9881489c74f6872a78cdc9204229bf05… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
3edc9ba192c0…16299f163a30 coinbase1250.0000031
7e7738a3c25e…b669c2550f00 pays to P2MR1216.99989440.0000031