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

Block 25688

Hash
0000018372f84279e22d5900135806b7311bba8989a658a671cb8501ba135688
Confirmations
16748
Time
2026-10-17 17:25:58 UTC
Median time
2026-10-17 17:17:44 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0025748176
Bits
1e01845f
Merkle root
ec66abb1839432d1445bc58c38b24cc7cf01c5c0b957c8b0ef1b0c5a581b85d7
Previous block
000000106d3249d226a7bbd8e0c441114e6e32b5465e541421632193bccf77db
Next block
00000031f65225e4169a2d717cb65fe6e3d26e65194bf62512cb6cc9f4a99cbc

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 25688 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
caaf56612cde13f3d796333d944b5f0f… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
ec66abb18394…0c5a581b85d7 coinbase1250