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

Block 19823

Hash
000000e237fcee00bc4ac5d136822f89af1bb97189ebd211482d1a539afe5a38
Confirmations
22255
Time
2026-10-10 23:46:26 UTC
Median time
2026-10-10 23:38:22 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
d12fdad5b8540c48aca7c7ae4213e4cf3363f5c1791397ff961354d1c7f08c3f
Previous block
000000be73fff3c03dec004dfa9912e9d212dfd908de64a8ca01da9cf506512d
Next block
0000003ab7132e1f28bdd121ae7b79690afdbd9da328c2fd1d9751a9b832f73a

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 19823 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
6f0f51798cb22f4386a09908f9a8e931… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
d12fdad5b854…54d1c7f08c3f coinbase1250