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

Block 19270

Hash
000000fb5b63d05ea246ace7d6b6225dc67787e26b018d73d1005bdb9c302d72
Confirmations
21564
Time
2026-10-10 08:16:30 UTC
Median time
2026-10-10 08:08:18 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
7dad2db93accfad93ce5a80c83603774b7761efc1bedf9a7c714278f6aa3ab1e
Previous block
00000036d8412afc623eea22c602c8bacb698da015994a8316f9e126442deea2
Next block
000000e083b820c7929fad24ff97f115ccc53a8978aa7ee9a2ef10b92d41e917

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 19270 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
7eb3d04a1037fc04bc3f175d6bef397f… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
7dad2db93acc…278f6aa3ab1e coinbase1250