Block 21538
- Hash
000000a3694357dc038acf640d7e996a422b289338bf87e5ac5d8270c84f3b2a- Confirmations
- 19550
- Time
- 2026-10-12 23:21:06 UTC
- Median time
- 2026-10-12 23:12:34 UTC
- Transactions
- 1
- Size
- 2,772
- Weight
- 10,980
- Difficulty
- 0.0031405554
- Bits
1e013e69- Merkle root
e0bc349c97d0d5cb5800718236cd623cf12937e5d67dab8d1bec9814f80446e5- Previous block
- 00000063cce9abbf4626e3988a72399590c46a9fd7ff49752217a18c94ba2ce5
- Next block
- 00000076e9ffca80c08a8a193caa4fe30f10c52fcf81a92064fb396d278a7a68
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 21538 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
c390576f6ba925ec5a79c8d08635aff0…(2420 B)- Format version
0x01- Context string
SIGNET/PQBLOCK/EXP0- Block key the nodes require
- SHA-256
eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad
Transactions
| txid | Inputs | Outputs | Amount | Fee |
|---|---|---|---|---|
| e0bc349c97d0…9814f80446e5 coinbase | 1 | 2 | 50 |