Block 21556
- Hash
000000fcfb0a5db3deedd57b8783963a5e2773bd00632c937d1d96d3068f26d6- Confirmations
- 19099
- Time
- 2026-10-12 23:51:28 UTC
- Median time
- 2026-10-12 23:42:55 UTC
- Transactions
- 3
- Size
- 3,289
- Weight
- 12,442
- Difficulty
- 0.0031405554
- Bits
1e013e69- Merkle root
00bae21746a21358d91706a1d79b7a6ba6ca43aaeb31021228233b369caf9703- Previous block
- 000000acaeac893cf2a263fe0de1847406ac9fe4aaebc5d305b829e4ed508176
- Next block
- 0000012ce0b9c81d5700ab47318c1f893a8fbb0e7cc91c25a0510892b529b3ff
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 21556 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
38a47e5e0dcb08a4be802b61ec31d31f…(2420 B)- Format version
0x01- Context string
SIGNET/PQBLOCK/EXP0- Block key the nodes require
- SHA-256
eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad
Transactions
| txid | Inputs | Outputs | Amount | Fee |
|---|---|---|---|---|
| 234192371c3b…ab2b08226512 coinbase | 1 | 2 | 50.00000734 | |
| 47089ac40859…0253405148bf pays to P2MR | 1 | 2 | 44.9999812 | 0.0000031 |
| ac424aa65b2e…5438744ccc17 pays to P2MR | 2 | 2 | 1.97838054 | 0.00000424 |