NEX-FS09 Blockchain Page
The Peerplays NEX application functional requirements specification for the blockchain page.
1. Purpose
The purpose of this functional specification (FS) document is to detail functional requirements for the Peerplays NEX application (the “app”) relating to the blockchain page from a business and user perspective.
2. Document Tracking
2.1. Parent Document
This document is a child document of the NEX Requirements Specification (NEX-RS).
2.2. Categorization
This document relates to the following tags.
App Component
page
3. Scope
This FS will describe the requirements and basic design for the app’s blockchain page.
3.1. Components
Specific components and features covered in this FS include:
blockchain page layout
blockchain blocks
blockchain block details
blockchain block transaction details
blockchain assets
blockchain witnesses
blockchain committee members
blockchain SONs
blockchain fees
4. Document Conventions
For the purpose of traceability, the following code(s) will be used in this functional specification:
NEX-FS09-#
NEX App Requirement - Blockchain Page
The keyword shall indicates a requirement statement.
The keywords may, could, and should are not requirements but rather indicate items related to requirements that are worthy of consideration.
5. Context
The app must provide a way for users to view most of the blockchain transactional data. This keeps the information open and therefore decentralized. The blockchain page will act as a singular point of reference where users can browse, search, and even download reports of the blockchain data.
6. Design Wire-frames
The wire-frames listed below are meant to represent the app’s blockchain page in various states. These are provided to assist in understanding of what features may look like or their potential use. Final designs may be vastly different from these images.
Figure 1. Blockchain page Blocks
Figure 2. Block Details
Figure 3. Transaction Details
Figure 4. Assets
Figure 5. Witnesses
Figure 6. Committee Members
Figure 7. SONs
Figure 8. Fees
7. Requirements
Requirements specific to the items listed in this FS are as follows.
7.1. Blockchain Page Layout
The blockchain page layout:
NEX-FS09-1: shall be available for authenticated and unauthenticated users within the application menu.
NEX-FS09-2: shall provide the user with navigation to the following pages:
the app dashboard
the market page
the user profile page
the user wallet
the app settings
the blockchain blocks page
the voting (GPOS) page (if advanced mode is active)
NEX-FS09-3: shall provide menus for displaying the following components:
blockchain blocks
blockchain assets
blockchain Witnesses
blockchain Committee members
blockchain SONs
blockchain fees
NEX-FS09-4: shall use graphic design elements which adhere to Peerplays branding guidelines.
NEX-FS09-5: shall use graphic design elements which remain consistent throughout the app.
NEX-FS09-6: shall allow user input in relevant form fields to perform the functions of the related component.
NEX-FS09-7: shall perform input field validation and inform the user of acceptable form inputs.
NEX-FS09-8: shall provide the user with help and/or hint text to explain available options and input fields.
NEX-FS09-9: shall provide unobtrusive help text to the user about each function. This may take any of the following forms:
tooltip when hovering an element (button, title, etc.)
pop-up when clicking an element (icon, link, etc.)
expanding panels or menus with help text
one time tutorial flow for new users
similar techniques for revealing content
NEX-FS09-10: shall indicate to the user when content is loading and avoid showing incorrect, outdated, or blank content.
NEX-FS09-11: displayed lists shall provide pagination controls for large record sets requiring multiple pages.
NEX-FS09-12: displayed lists shall display information about their records in a tabular format.
NEX-FS09-13: displayed lists shall display a header row with column names.
NEX-FS09-14: displayed lists shall provide controls in the header to sort columns based on their values, if appropriate.
NEX-FS09-15: displayed lists shall display columns of a width appropriate for their values.
NEX-FS09-16: displayed lists shall highlight row which the user is hovering on.
NEX-FS09-17: displayed lists shall highlight row which the user has clicked on (focused).
7.2. Blockchain Blocks
NEX-FS09-18: shall display the following dynamic information about the blockchain, to be updated in real time:
current block number
last irreversible block number with difference from the current block number
moving average confirmation time
current total supply of PPY
approximate value of 1 PPY (in user’s preferred currency)
PPY market cap value (in user’s preferred currency)
NEX-FS09-19: shall, for each of the dynamic items listed above, display a chart or graph representing the change of these values for a reasonable time range (ex: last 24 hours, rolling).
NEX-FS09-20: shall, for each of the dynamic items listed above, display the label as well as information.
NEX-FS09-21: shall display a table (list) of recent blocks that have been produced on the blockchain.
NEX-FS09-22: shall include the following fields for each available recent block:
block number
block creation date and time
name of the witness who produced the block
number of transactions in the block
NEX-FS09-23: shall display date and time in the user’s local format.
NEX-FS09-24: shall allow the user to click a block number to navigate to a block details view.
NEX-FS09-25: shall allow the user to click a witness name to navigate to the witness’s account page.
NEX-FS09-26: shall allow the user to sort the list by its data fields.
NEX-FS09-27: shall allow the user to filter the list by its data fields.
NEX-FS09-28: shall allow users to perform text search of keywords like block numbers and witness names.
NEX-FS09-29: shall allow the user to download a copy of the list, as it has been filtered and sorted, as either a PDF file or CSV file.
7.3. Blockchain Block Details
NEX-FS09-30: shall provide pagination controls to navigate to the previous or next (if appropriate) block details view in block number order.
NEX-FS09-31: shall display the block number for the current block details view.
NEX-FS09-32: shall display the block creation time, in the user’s local date and time format, for the current block details view.
NEX-FS09-33: shall display the name and ID of the witness who created the block, which links to the witness’s account page.
NEX-FS09-34: shall display the number of transactions in the block.
NEX-FS09-35: shall display an expandable panel or menu which hides the advanced block details by default. This menu can be opened by the user to reveal the full details of the block which includes, but is not limited to, the following:
block ID
merkle root
previous secret hash
next secret hash
signing key used to sign the block
witness signature
block extensions
NEX-FS09-36: shall display a table (list) of all the transactions contained in the block.
NEX-FS09-37: shall include the following fields for each available transaction within the block:
transaction index
transaction ID
expiration date and time
number of operations in the transaction
reference block prefix
reference block number
number of transaction extensions
NEX-FS09-38: shall allow the user to click a transaction ID to navigate to a block transaction details view.
NEX-FS09-39: shall allow the user to sort the list by its data fields.
NEX-FS09-40: shall allow the user to filter the list by its data fields.
NEX-FS09-41: shall allow the user to download a copy of the list, as it has been filtered and sorted, as either a PDF file or CSV file.
7.4. Blockchain Block Transaction Details
NEX-FS09-42: shall provide pagination controls to navigate to the previous or next (if appropriate) block transaction details view in transaction index order.
NEX-FS09-43: shall display the block number for the current block transaction details view.
NEX-FS09-44: shall display the transaction expiration date and time, in the user’s local date and time format, for the current block transaction details view.
NEX-FS09-45: shall display the number of operations in the transaction.
NEX-FS09-46: shall display an expandable panel or menu which hides the advanced transaction details by default. This menu can be opened by the user to reveal the full details of the transaction which includes, but is not limited to, the following:
transaction ID
reference block prefix
reference block number
transaction extensions
signatures applied to the transaction
NEX-FS09-47: shall display a table (list) of all the operations contained in the transaction.
NEX-FS09-48: shall include the following fields for each available operation within the transaction:
operation index
operation ID
operation type (name of the operation. ex: SON Heartbeat, transfer, or issue asset)
fees
operation details (including memo)
operation results
NEX-FS09-49: shall allow the user to sort the list by its data fields.
NEX-FS09-50: shall allow the user to filter the list by its data fields.
NEX-FS09-51: shall allow users to perform text search of keywords like operation type, or text within operation details.
NEX-FS09-52: shall allow the user to download a copy of the list, as it has been filtered and sorted, as either a PDF file or CSV file.
7.5. Blockchain Assets
Note: “Assets” in this context is referring to the blockchain objects beginning with object ID 1.3.x. This is not intended to include NFT assets.
NEX-FS09-53: shall display the following dynamic information about the blockchain assets, to be updated in real time:
number of assets on the chain
NEX-FS09-54: shall, for each of the dynamic items listed above, display a chart or graph representing the change of these values for a reasonable time range (ex: last 24 hours, rolling).
NEX-FS09-55: shall, for each of the dynamic items listed above, display the label as well as information.
NEX-FS09-56: shall display a table (list) of blockchain assets that have been created on the blockchain.
NEX-FS09-57: shall include the following fields for each available asset:
asset ID (1.3.x)
asset symbol (PPY, BTC, HIVE, etc.)
asset name (Peerplays, Bitcoin, Hive, etc.)
maximum supply
asset precision
asset issuer name
NEX-FS09-58: shall display the maximum supply amount in nominal value with significant digits appropriate to the asset.
NEX-FS09-59: shall allow the user to click an asset issuer name to navigate to the asset issuer’s account page.
NEX-FS09-60: shall allow the user to sort the list by its data fields.
NEX-FS09-61: shall allow the user to filter the list by its data fields.
NEX-FS09-62: shall allow users to perform text search of keywords like symbol, name, or issuer name.
NEX-FS09-63: shall allow the user to download a copy of the list, as it has been filtered and sorted, as either a PDF file or CSV file.
7.6. Blockchain Witnesses
NEX-FS09-64: shall display the following dynamic information about the blockchain witnesses, to be updated in real time:
current number of active witnesses
current block creation rewards per block
estimated monthly rewards per witness
remaining witness hourly budget
date and time of the next vote update (maintenance period)
current scheduled witness
NEX-FS09-65: shall, for each of the dynamic items listed above, display a chart or graph representing the change of these values for a reasonable time range (ex: last 24 hours, rolling) where appropriate.
NEX-FS09-66: shall, for each of the dynamic items listed above, display the label as well as information.
NEX-FS09-67: shall display a table (list) of witness accounts that have been created on the blockchain.
NEX-FS09-68: shall include the following fields for each witness account:
witness rank (highest votes, length of time being active, and then least missed blocks.)
witness name
currently active (true / false)
witness proposal URL
last block number produced by the witness
number of missed blocks
total votes for the witness
the witness’s public key
NEX-FS09-69: shall allow the user to click a witness name to navigate to the witness’s account page.
NEX-FS09-70: shall allow the user to click a witness URL to navigate to the witness’s proposal website (external link).
NEX-FS09-71: shall display the total votes amount in nominal value with five significant digits.
NEX-FS09-72: shall allow the user to sort the list by its data fields.
NEX-FS09-73: shall allow the user to filter the list by its data fields.
NEX-FS09-74: shall allow users to perform text search of keywords like witness names.
NEX-FS09-75: shall allow the user to download a copy of the list, as it has been filtered and sorted, as either a PDF file or CSV file.
7.7. Blockchain Committee Members
NEX-FS09-76: shall display the following dynamic information about the blockchain committee members, to be updated in real time:
current number of active committee members
NEX-FS09-77: shall, for each of the dynamic items listed above, display a chart or graph representing the change of these values for a reasonable time range (ex: last 24 hours, rolling) where appropriate.
NEX-FS09-78: shall, for each of the dynamic items listed above, display the label as well as information.
NEX-FS09-79: shall display a table (list) of committee member accounts that have been created on the blockchain.
NEX-FS09-80: shall include the following fields for each committee member account:
committee member rank (highest votes, then length of time being active)
committee member name
currently active (true / false)
committee member proposal URL
total votes for the committee member
NEX-FS09-81: shall allow the user to click a committee member name to navigate to the committee member’s account page.
NEX-FS09-82: shall allow the user to click a committee member URL to navigate to the committee member’s proposal website (external link).
NEX-FS09-83: shall display the total votes amount in nominal value with five significant digits.
NEX-FS09-84: shall allow the user to sort the list by its data fields.
NEX-FS09-85: shall allow the user to filter the list by its data fields.
NEX-FS09-86: shall allow users to perform text search of keywords like committee member names.
NEX-FS09-87: shall allow the user to download a copy of the list, as it has been filtered and sorted, as either a PDF file or CSV file.
7.8. Blockchain SONs
NEX-FS09-88: shall display the following dynamic information about the blockchain SONs, to be updated in real time:
current number of active SONs
SON daily budget
date and time of the next vote update (maintenance period)
NEX-FS09-89: shall, for each of the dynamic items listed above, display a chart or graph representing the change of these values for a reasonable time range (ex: last 24 hours, rolling) where appropriate.
NEX-FS09-90: shall, for each of the dynamic items listed above, display the label as well as information.
NEX-FS09-91: shall display a table (list) of SON accounts that have been created on the blockchain.
NEX-FS09-92: shall include the following fields for each SON account:
SON rank (highest votes, then length of time being active)
SON name
currently active (true / false)
SON proposal URL
total votes for the SON
NEX-FS09-93: shall allow the user to click a SON name to navigate to the SON’s account page.
NEX-FS09-94: shall allow the user to click a SON URL to navigate to the SON’s proposal website (external link).
NEX-FS09-95: shall display the total votes amount in nominal value with five significant digits.
NEX-FS09-96: shall allow the user to sort the list by its data fields.
NEX-FS09-97: shall allow the user to filter the list by its data fields.
NEX-FS09-98: shall allow users to perform text search of keywords like SON names.
NEX-FS09-99: shall allow the user to download a copy of the list, as it has been filtered and sorted, as either a PDF file or CSV file.
7.9. Blockchain Fees
NEX-FS09-100: shall display a table (list) of fees that have been created on the blockchain.
NEX-FS09-101: shall include the following fields for each fee:
fee category (general, asset specific, account specific, etc.)
blockchain operation
fee type (regular, price per KByte, etc.)
fee amount (0.01 PPY, Free, etc.)
NEX-FS09-102: shall allow the user to sort the list by its data fields.
NEX-FS09-103: shall allow the user to filter the list by its data fields.
NEX-FS09-104: shall allow users to perform text search of keywords like blockchain operation, category, or fee amount.
NEX-FS09-105: shall allow the user to download a copy of the list, as it has been filtered and sorted, as either a PDF file or CSV file.
8. Appendix A: Glossary
RS
Requirements Specification
FS
Functional Specification
UI
User Interface
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