Connection

Connection

The websocket endpoint is,EnvironmentURIprodwss://ws.blockchain.info/mercury-gateway/v1/ws

In order to connect you have to add the following headers to the connection requestEnvironmentHeadersprodOrigin: https://exchange.blockchain.com

Requests

FY23 Defense Funding Levels (in billions of dollars) Department of Defense $ 816.7 Department of Energy $ 30.3 NDAA Topline $ 847.3 Defense-related Activities Outside NDAA Jurisdiction $ 10.6 National Defense Topline $ 857.9

Authorizes funding to support a 4.6 percent pay raise for both military servicemembers and the DOD civilian workforce.  Authorizes additional funding to address the effects of inflation on compensation.  Authorizes an increase of $70 million for Impact Aid ($50 million for supplemental Impact Aid and $20 million for Impact Aid for military children with severe disabilities).  Broadens the reach and impact of the Basic Needs Allowance by increasing the eligibility threshold and allowance size from 130% of the Federal poverty line to 150% of the Federal poverty line as a baseline, and authorizes the Secretary of Defense to increase this benefit to 200% of the poverty line when appropriate.  Increases maximum amounts for bonus and special pay authorities for servicemembers in certain critical-skill positions.  Revives and extends temporary authority for targeted recruitment incentives to ensure the military can meet its recruiting and retention needs.  Expands the scope of financial reimbursement related to spouse relicensing and business costs arising from a permanent change of station.  Initiates a pilot program to reimburse military families for certain child care costs related to a permanent change of station.  Creates an open season during calendar year 2023 for eligible retired or former members to opt in or out of the Survivor Benefit Plan.  Ensures servicemembers have access to quality housing, including by: extending the authority to adjust the basic allowance for housing (BAH) in high-cost areas; encouraging DOD to coordinate efforts to address housing shortages; and codifying that the Assistant Secretary of Defense for Energy, Installations, and Environment should serve as the Chief Housing Officer. End Strength  Army – 452,000  Navy – 354,000  Air Force – 325,344  Marine Corps – 177,000  Space Force – 8,600  Authorizes reserve component military end strengths in line with President's request, with the exception of Air National Guard military technicians and full-time Reserve and Guard personnel, which are to remain at FY2022 levels.

Connection

The websocket endpoint is,EnvironmentURIprodwss://ws.blockchain.info/mercury-gateway/v1/ws

In order to connect you have to add the following headers to the connection requestEnvironmentHeadersprodOrigin: https://exchange.blockchain.com

Requests

COULD YOU SOCIAL ENGINEER SO YOU NEED TO WATCH BEFORE THE MEETINGS TO HAPPEN BEFORE AFTER AND MIMIC OR ELSE WHERE

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Connection

The websocket endpoint is,EnvironmentURIprodwss://ws.blockchain.info/mercury-gateway/v1/ws

In order to connect you have to add the following headers to the connection requestEnvironmentHeadersprodOrigin: https://exchange.blockchain.com

Requests

I won't be able to contribute to any of the projects.

Use what was provided for you but my extent of my assistance has ended.

I no longer can tolerate your behaviors and with all things going on with whatever this is.

I was very depressed and I really saved my words and will not be.

I'm sorry dde navigator and Jamie, I walked out and your clone body started asking if I was going to sleep with Jamie.

So I want you to know, the Asians will be visiting Vegas but I will not step a foot in this country ever again.

ethereum.org

JSON-RPC API | ethereum.org

A stateless, light-weight remote procedure call (RPC) protocol for Ethereum clients.

Free Stanford Webinar: The Future of Blockchain and Cryptocurrencies

learn.stanford.edu

Webinar: The Future of Blockchain and Cryptocurrencies

Dan Boneh shares developments in blockchain and cryptocurrency technologies and how to keep data secure

Running A Full Node - Bitcoin

Running A Full Node - Bitcoin

Running A Full Node - Bitcoin

osts And Warnings

Running a Bitcoin full node comes with certain costs and can expose you to certain risks. This section will explain those costs and risks so you can decide whether you’re able to help the network.

Special Cases

Miners, businesses, and privacy-conscious users rely on particular behavior from the full nodes they use, so they will often run their own full nodes and take special safety precautions. This document does not cover those precautions—it only describes running a full node to help support the Bitcoin network in general.

Please seek out assistance in the community if you need help setting up your full node correctly to handle high-value and privacy-sensitive tasks. Do your own diligence to ensure who you get help from is ethical, reputable and qualified to assist you.

Secure Your Wallet

It’s possible and safe to run a full node to support the network and use its wallet to store your bitcoins, but you must take the same precautions you would when using any Bitcoin wallet. Please see the securing your wallet page for more information.

Minimum Requirements

Bitcoin Core full nodes have certain requirements. If you try running a node on weak hardware, it may work—but you’ll likely spend more time dealing with issues. If you can meet the following requirements, you’ll have an easy-to-use node.

@watsonlyme

@ytnkcat

@jarvislamar

https://www.bing.com/ck/a?!&&p=f14276dbb00453edJmltdHM9MTcwNTAxNzYwMCZpZ3VpZD0zMjAzZGRmNi1kNDBhLTZmYjEtMjk4YS1jOWYyZDUyNzZlNDAmaW5zaWQ9NTM1OQ&ptn=3&ver=2&hsh=3&fclid=3203ddf6-d40a-6fb1-298a-c9f2d5276e40&psq=blockchain+four+websocket+distribution+hash&u=a1aHR0cHM6Ly9tZWRpdW0uY29tL0BkYXZpZGdyb3NmZWxkL3VzaW5nLXdlYnNvY2tldC10by1ydW4tYS1yZWFsLXRpbWUtYml0Y29pbi12aXN1YWxpemF0aW9uLTYwYzk3MWVjZWMzNQ&ntb=1

WebSocket API

Connect to the Blocknative service over WebSocket protocol

Creating a Socket Connection

A WebSocket connection should be created with the Blocknative service at wss://api.blocknative.com/v0. A successful connection will receive a response object that contains a status parameter with a value of 'ok'.

Required Parameters

The following parameters are required for all messages that are sent to the Blocknative service:

parameter

type

description

timeStamp

string

an ISO datetime string formatted YYYY-MM-DDThh:mm:ss.sTZD (see example for usage and https://www.w3.org/TR/NOTE-datetime for more details)

dappId

string

your API key

version

string

a version string usually used by the Blocknative SDK, but any version string can be used

blockchain

object

object specifying a the system and network of the blockchain (see next)

system

string

blockchain name, valid value is ethereum

network

string

blockchain network, valid values for support systems are:

Ethereum (and EVM compatible) - main, goerli, kovan, xdai, matic-main,

​

{

"timeStamp": "2021-01-11T06:21:40.197Z",

"dappId": "<YOUR_API_KEY>",

"version": "1",

"blockchain": {

"system": "ethereum"

"network": "main"

}

// ...rest of the message specific parameter

}

Initialization

Once a connection has been created with the Blocknative WebSocket service, an initialization message must be sent before any other messages so that the API key can be validated.

You API Key is created/managed from the Mempool Explorer account management page at https://explorer.blocknative.com/account. Note that API Key is called dappId in the Blocknative websocket protocol.

{

"categoryCode": "initialize",

"eventCode": "checkDappId",

// ...rest of the required parameters

}

​

Subscriptions

You can subscribe to receive transaction state change events by either watching a transaction hash/id or an address.

Ethereum Transaction Hash

// subscribe

{

"categoryCode": "activeTransaction",

"eventCode": "txSent",

"transaction": {

"hash": "0x0b4c94c414f71ddd5e7a625fcaa83ff1f93e9a7ca37e0f577b488ac8fd786655"

}

// ...rest of the required parameters

}

​

// unsubscribe

{

"categoryCode": "activeTransaction",

"eventCode": "unwatch",

"transaction": {

"hash": "0x0b4c94c414f71ddd5e7a625fcaa83ff1f93e9a7ca37e0f577b488ac8fd786655"

}

// ...rest of the required parameters

}

Address (Ethereum)

// subscribe

{

"categoryCode": "accountAddress",

"eventCode": "watch",

"account": {

"address": "0xf5b5bd85157587771db6d49315b1712201569bdd"

}

// ...rest of the required parameters

}

​

// unsubscribe

{

"categoryCode": "accountAddress",

"eventCode": "unwatch",

"account": {

"address": "0xf5b5bd85157587771db6d49315b1712201569bdd"

}

// ...rest of the required parameters

}

Configurations

A configuration can be sent to the service to filter and/or decode transactions.

Transaction decoding is only available for Ethereum transactions

There is a limit of 50 configurations per connection / API key. If you need to watch more than 50 addresses and also filter them, it is recommended that you subscribe to all of the addresses and then add a 'global' scoped filter that will apply to all of those addresses.

{

"categoryCode": "configs",

"eventCode": "put",

"config": {

"scope": "0xf5b5bd85157587771db6d49315b1712201569bdd",

"filters": [{"contractCall.methodName":"transfer"}],

"abi": [{

"constant": false,

"inputs": [{ "name": "newOwner", "type": "address" }],

"name": "setOwner",

"outputs": [],

"payable": false,

"stateMutability": "nonpayable",

"type": "function"

}],

"watchAddress": true

}

// ...rest of the required parameters

}

parameter

type

description

scope

string

A valid Ethereum address or 'global'

filters

string[]

An array of valid filters. The Blocknative service uses jsql, a JavaScript query language to filter events. Documentation for how to create filter queries can be found here​

abi

string[]

A valid JSON ABI that will be used to decode input data for transactions that occur on the contract address defined in scope

watchAddress

boolean

defines whether the service should automatically watch the address as defined in scope

scope establishes the context in which a filter is applied. The global scope applies the filter to all transactions/addresses watched. Therefore a global scope only supports generic transaction elements. A scope set to an address can include filters, such as methodName,that are specific to the contract at that address. Similarly, the abi field only works for a contract specific scope.

Connection Drops

In the event of a WebSocket connection drop, no state is persisted between connections, so upon reconnection there will need to be logic defined that will:

1.Send an initialization message

2.Send all previously subscribed addresses, transactions and configs

Transaction Events

Each message sent to the service will receive an echo of that message back, this echo may be ignored for most purposes.

Every payload contains an eventCode parameter in the event object which indicates the type of event. Detailed documentation for event codes can be found in the here.

Ethereum Transaction Payload

{

"version":0,

"serverVersion":"0.85.8",

"timeStamp":"2021-01-06T01:25:24.716Z",

"connectionId":"49babf8c03a18ca8577b8dc42e4ab9e8cbdf3148d4b4b1e311f54f24c19e0e57",

"status":"ok",

"event":{

"timeStamp":"2021-01-06T01:25:24.716Z",

"categoryCode":"activeAddress",

"eventCode":"txConfirmed",

"dappId":"<DAPP ID>",

"blockchain":{

"system":"ethereum",

"network":"main"

},

"transaction":{

"status":"confirmed",

"monitorId":"GETH_1_F_PROD",

"monitorVersion":"0.77.3",

"timePending":"5482902",

"blocksPending":410,

"hash":"0x045fbad4090a25fc8267cf80f0f095a202cdac465d534e4c942b2068086e9aa3",

"from":"0xbA99926Be550865a956febAF4A747FFA0648797A",

"to":"0x111111125434b319222CdBf8C261674aDB56F3ae",

"value":"0",

"gas":324499,

"gasPrice":"61000000000",

"nonce":179,

"blockHash":"0x543bd57151cb7ab3024a18a459844790278861c712e9e4b58e1939a207e9fb82",

"blockNumber":11598068,

"transactionIndex":307,

"input": "0x34b0793b000000000000000...",

"gasUsed": 138022,

"asset":"ETH",

"watchedAddress":"0x111111125434b319222cdbf8c261674adb56f3ae",

"direction":"incoming",

"counterparty":"0xbA99926Be550865a956febAF4A747FFA0648797A"

}

}

}

​

Address subscription payload additional properties

If the transaction event is linked to an address subscription it will have the following properties that are unique to address subscriptions:

parameter

type

description

watchedAddress

string

the address subscription that this transaction is linked to, allowing you to match the transaction to a subscription

direction

string

a value of incoming or outgoing indicating whether the watched address is sending or receiving the transaction

counterparty

string

the counter-party to the watched address

Confirmed/failed transaction payload additional properties

Transactions with a status of confirmed will have the following additional properties that are not included in other statuses:

parameter

type

description

timePending

string

the time, in milliseconds, the transaction was pending before being included in a block

blocksPending

string

the number of blocks the transaction was pending before being included in a block

blockHash

string

the hash of the block containing the confirmed (or failed) transaction

blockNumber

number

the number of the block containing the confirmed (or failed) transaction

gasUsed

number

the amount of gas used to confirm (or fail) the transaction

Replaced transactions payload additional properties

Transactions that have been replaced and have a status of speedup or cancel will have the following additional properties that are not included in other statuses:

parameter

type

description

originalHash

string

the hash of the transaction that is being replaced

Errors

Errors from the service are returned as messages with a status = 'error' and a reason string explaining the error.

Websocket payload is too large (60,000 bytes):

{

//...other params

status: 'error',

reason: 'message too large'

}

API key (dappId) parameter is missing:

{

//...other params

status: 'error',

reason: 'missing dappId'

}

API key (dappId) is invalid:

{

//...other params

status: 'error',

reason: '<DAPP-ID> is not a valid API key'

}

Attempt to watch an invalid address:

Address validity is based on the specific blockchain system used (bitcoin or ethereum).

{

//...other params

"status":"error",

"reason":"(string `address`) 0 is an invalid address in object `account` in object `websocket-event`"

}

Amount of messages has exceeded limit, see Rate Limits section below.

{

//...other params

status: 'error',

reason: 'ratelimit',

retryMs: 1000,

blockedMsg: <Message that was blocked>

}

Exceeded daily event limit for your API key, see Rate Limits section below.

{

//...other params

status: 'error',

reason: 'You have reached your event rate limit for today. See account.blocknative.com for details.'

}

IP has been rate limited, see Rate Limits section below.

{

//...other params

status: 'error',

reason: 'IP ratelimited**'**

}

Error received for using incorrect API version.

{

//...other params

status: 'error',

message: 'api version not supported',

}

Supported Networks

See Mempool API Support Networks.

Rate Limits

Daily per API key event rate limits that apply to Webhook events also apply to WebSocket events. Details on those limits can be found here.

The Blocknative service also limits how many messages can be sent over a duration of time, limiting to 50 messages per second.

A strategy that the Blocknative SDK uses to handle these limits is to create a message queue that processes messages and ensures that messages are spaced adequately. This can be especially important to implement when re-sending addresses to be subscribed after a connection dropout.

If a rate limit error message is received you can use the retryMs parameter to wait for that time period to continue sending messages. If a message was blocked due to a rate limit it will be included in the payload in the blockedMsg parameter so you can re-send that message after the retry delay, ensuring that no messages are dropped.

Connection

The websocket endpoint is,EnvironmentURIprodwss://ws.blockchain.info/mercury-gateway/v1/ws

In order to connect you have to add the following headers to the connection requestEnvironmentHeadersprodOrigin: https://exchange.blockchain.com

Requests

by Milan R

Connection

The websocket endpoint is,EnvironmentURIprodwss://ws.blockchain.info/mercury-gateway/v1/ws

In order to connect you have to add the following headers to the connection requestEnvironmentHeadersprodOrigin: https://exchange.blockchain.com

Requests

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