Block 21977
- Hash
000000c46f9aef6abb987ebe33a9b58dfda5241ec86d44718ed857700ee3f590- Confirmations
- 18598
- Time
- 2026-10-13 11:36:22 UTC
- Median time
- 2026-10-13 11:28:26 UTC
- Transactions
- 1
- Size
- 2,772
- Weight
- 10,980
- Difficulty
- 0.0031405554
- Bits
1e013e69- Merkle root
7d6e3823cc0647c70c5afc1b13dcd323150c350dcac288d0348c5afd7848d41d- Previous block
- 000000ad63cec12f438f67b660d28dec8b99bb64808b3ab5f34e40d2a11fddaa
- Next block
- 0000003e6953fe8b95447454367fcd0684de1c52567f9370b69496f719d222a5
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 21977 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
1f3ffd455a62508935de770eb0251551…(2420 B)- Format version
0x01- Context string
SIGNET/PQBLOCK/EXP0- Block key the nodes require
- SHA-256
eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad
Transactions
| txid | Inputs | Outputs | Amount | Fee |
|---|---|---|---|---|
| 7d6e3823cc06…5afd7848d41d coinbase | 1 | 2 | 50 |