Block 21451
- Hash
000000fa40e2d736b18a7a96d622d079300b7a4c0eeea93cf6872e489da07bd4- Confirmations
- 20195
- Time
- 2026-10-12 20:57:03 UTC
- Median time
- 2026-10-12 20:48:29 UTC
- Transactions
- 1
- Size
- 2,772
- Weight
- 10,980
- Difficulty
- 0.0031405554
- Bits
1e013e69- Merkle root
7fdd49481590d7ef49b43957a38d599dd6432eb0c0a57301726f2694aa93788a- Previous block
- 000000f7068480f67eab84b6a86f107b8f8482108af1a801ebd49f3139c39714
- Next block
- 0000003894a1e9d9c570f600998881f4feadcbcdfa0b317a5ac7ced45c72a7d0
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 21451 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
f32edfa7a2568fbe8b6f10b6316ac42e…(2420 B)- Format version
0x01- Context string
SIGNET/PQBLOCK/EXP0- Block key the nodes require
- SHA-256
eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad
Transactions
| txid | Inputs | Outputs | Amount | Fee |
|---|---|---|---|---|
| 7fdd49481590…2694aa93788a coinbase | 1 | 2 | 50 |