sanket1729

rust-bitcoin:
- OP_VAULT: Add opcode support, support for creating basic VAULT scripts (can also be done in rust-miniscript)
- OP_CTV: Add opcode support, support creating transaction hash

rust-miniscript:
- Vault descriptor construction:
- Recovery descriptor construction:

bdk:
- sycning descriptors. (vault and recovery).

sanket1729

{
  "Add16": 78.1200463950235,
  "Add32": 81.328125,
  "Add64": 82.70625,
  "Add8": 58.98373315072345,
  "All16": 45.49776333874612,
  "All32": 67.3492669616389,
  "All64": 66.5235294117647,
  "All8": 58.224245667598524,
  "And16": 84.74355405586726,

sanket1729

class Solution:
    def minimizeArrayValue(self, nums: List[int]) -> int:
        total_sum = 0
        ans = 0
        for i, v in enumerate(nums):
            capacity = ans * (i + 1)
            total_sum += v
            # Can we accomodate last value within current answer 
            if total_sum > capacity:
                # Restribute equally.

sanket1729

{
  "Add32": 60.6159814446884,
  "AnnexHash": 211.09026343236047,
  "AssetAmountHash": 180.8254919736737,
  "Bip0340Verify": 45984.13321032714,
  "BuildTapbranch": 1435.412867661228,
  "BuildTapleafSimplicity": 1015.4756900209926,
  "CalculateAsset": 360.06007299543614,
  "CalculateConfidentialToken": 350.8989606414178,
  "CalculateExplicitToken": 348.558227539948,

sanket1729

Methodolody:

Run each jet for the selected input and choose the worst case amongst those inputs. For example, when running Add32, we run bench 50 random inputs and select the worst case amongst those

Jets based on Bits

• Verify, Random inputs,
• Low32, Random inputs,
• Eq32, Both numbers equal,
• Eq256, Both numbers equal,
• Le32, Random inputs,

sanket1729

#unsigned_psbt,signed_psbt,(pk;sk,)*
70736274ff01005202000000014f1081b4b3f3527113058a48b6fd84d968f212c1c0d334d637f77d294b3289f80100000000010000000148d5f50500000000160014b6e35acec5146ef531a6372137cd45f104f8f8f8da0e995f0001011f00e1f50500000000160014773dfa9e21789bf357c19b7db8a4c7df97d930c6220603ab1ac1872a38a2f196bed5a6047f0da2c8130fe8de49fc4d5dfb201f7611d8e204773dfa9e0000,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,03ab1ac1872a38a2f196bed5a6047f0da2c8130fe8de49fc4d5dfb201f7611d8e2;cMeb8vatuSpDLwokavVgGWFc2gF8xKDRfA

sanket1729

(Feel free to suggest add/copy/edit anything from this doc into anything that we need)

Notable Events:

• Inflation at an all time high:
• Bitcoin price crash:
• Terra UST/ Celcius:
• Coinbase layoffs:
• 3AC: (https://news.bitcoin.com/report-three-arrows-capital-liquidated-for-millions-sources-say-crypto-hedge-fund-may-face-insolvency/)
• Wasabi wallet blacklisting: (https://blog.wasabiwallet.io/zksnacks-blacklisting-update/)

sanket1729

Musig2 signing in Psbt

New fields required:

• PSBT_IN_MUSIG_PARTICIPANT_PUBLIC_KEYS: (<x_only_pk(agg_pk_to_sign)><x_only_pk(agg_pk)>) -> <[x_only_pk]*>: For example, (a, b) -> [c] where b = Musig2_KeyAgg([c]) and a is a tweaked(BIP32 tweak or x-only tweak or both) key derived from b where the tweaking information is present in PSBT_IN_TAP_BIP32_DERIVATION in case of BIP32 tweak. In case, a is the output key, an additional BIP341 tweak is applied. The tweak information is provided in PSBT_IN_TAP_INTERNAL_KEY or PSBT_IN_TAP_MERKLE_ROOT. The full xpub for the aggregated agg_pk can be provided in PBST_GLOBAL_XPUB field

• PSBT_IN_TAP_MUSIG2_PUB_NONCE: (<x_only_pk(participant_key), x_only_pk(agg_pk_to_sign), leaf_hash>) -> <pub_nonce> (serialized pub_nonce including R1 and R2).

• PSBT_IN_TAP_PARTIAL_SIGNATURE: (<x_only_pk(participant_key), x_only_pk(agg_pk_to_sign), leaf_hash>) -> <partial_sig> (serialized partial_sig)

Aggregating pubkeys and tweaking:

sanket1729

// Some user struct for trees
enum Tree {
  Node(Tree,Tree),
  Leaf(Miniscript),
}

impl Tree {

  fn update_builder(&self, builder: TaprootBuilder, depth: usize) -> TaprootBuilder {
    match self { 

sanket1729

Output Descriptors

Descriptor Trait/Typeclass:

Table of API on along the rows, and columns showing the descriptor type. Each box represents

• y = always succeeds
• n = always fails
• yn = may succeed

All descriptors sh/wsh/shwsh/tr/bare support miniscript descriptors