Block 21553
- Hash
00000042181a0fa4f10f70eb54d499dbcac467cd5d26937c047d4c77799af50c- Confirmations
- 19244
- Time
- 2026-10-12 23:46:23 UTC
- Median time
- 2026-10-12 23:37:14 UTC
- Transactions
- 2
- Size
- 2,977
- Weight
- 11,596
- Difficulty
- 0.0031405554
- Bits
1e013e69- Merkle root
607c1b2a3636a63cb3b824cf8d49111df5c688d4aa1a21120dd489508541645c- Previous block
- 00000135026539b4224fca940bcbbaedda12d24baca34897f84d73b7adddaf6a
- Next block
- 0000010ca481d8e8a9f2d75bf3ebe620fafe097324a594605fd3833dd4c1e2d0
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 21553 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
d5806ae2e0337a4f90bbf1cb014b3c8e…(2420 B)- Format version
0x01- Context string
SIGNET/PQBLOCK/EXP0- Block key the nodes require
- SHA-256
eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad
Transactions
| txid | Inputs | Outputs | Amount | Fee |
|---|---|---|---|---|
| 3db73f57fc0e…4771ed3a1903 coinbase | 1 | 2 | 50.0000031 | |
| 9f858336e636…116d990b2cd5 pays to P2MR | 1 | 2 | 1.9998479 | 0.0000031 |