Block 21439
- Hash
0000013ca0b5996ac43ed7c23d0ea6291f7e07e90d5920cd386ecfb2ccaeb1f1- Confirmations
- 20446
- Time
- 2026-10-12 20:37:13 UTC
- Median time
- 2026-10-12 20:29:06 UTC
- Transactions
- 2
- Size
- 2,977
- Weight
- 11,596
- Difficulty
- 0.0031405554
- Bits
1e013e69- Merkle root
7011d4a195d0b389882517713ea9fb03d6d85ef982ef2430e1dfdd39954eb864- Previous block
- 00000121d1c97f8f40c56524e9d70b16ce9a15d8101616739078162913e7d911
- Next block
- 00000081c63cf84ed9cfbaecf053f05c9daf1831f27f6cb6d41d43f8c592797e
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 21439 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
ea78e61ff2e0f8bcd4879933943ff154…(2420 B)- Format version
0x01- Context string
SIGNET/PQBLOCK/EXP0- Block key the nodes require
- SHA-256
eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad
Transactions
| txid | Inputs | Outputs | Amount | Fee |
|---|---|---|---|---|
| 67189dd27255…96f4389351b1 coinbase | 1 | 2 | 50.0000031 | |
| c1ba21afc560…d60b3050631b pays to P2MR | 1 | 2 | 35.9999533 | 0.0000031 |