On the Mechanics of NFT Valuation: AI Ethics and Social Media

Supplementary resources, data, and code

by Luyao Zhang*, Yutong Sun, Yutong Quan, Jessie Cao and Xin Tong*

(* corresponding authors)

Datasets on Harvard Dataverse:

Zhang, Luyao; Yutong Sun; Yutong Quan; Jiaxun Cao; Tong Xin, 2023, "Replication Data for: On the Mechanics of NFT Valuation: AI Ethics and Social Media", https://doi.org/10.7910/DVN/YMZC30, Harvard Dataverse, V2, UNF:6:K18EFjOhNtecu0xnrmB6Wg== [fileUNF]

@data{DVN/YMZC30_2023,
author = {Zhang, Luyao and Yutong Sun and Yutong Quan and Jiaxun Cao and Tong Xin},
publisher = {Harvard Dataverse},
title = {{Replication Data for: On the Mechanics of NFT Valuation: AI Ethics and Social Media}},
UNF = {UNF:6:K18EFjOhNtecu0xnrmB6Wg==},
year = {2023},
version = {V2},
doi = {10.7910/DVN/YMZC30},
url = {https://doi.org/10.7910/DVN/YMZC30}
}

Table of Contents

Data

Collected Data

File Name	Data Category	Discription
queried_tweets_cryptopunk_2017_2022.csv	Social Media Data	All CryptoPunks-related tweets
tweets_cryptopunk_gender_skintone.csv	Social Media Data	Tweets related to gender and skin tone in CryptoPunks
cryptopunks_gender_skintone_info_new.csv	Transaction Data	CryptoPunks general information including skin tone, gender, price (in ETH), and trading wallet address
Ethereum Gas Price_Daily Average.csv	Transaction Data	Ethereum daily average gas price
ETH_USD.csv	Transaction Data	The ETH/USD exchange rate

Analyzed Data

File Name	Discription	Section of Paper
analyzed_tweet_volume_cryptopunk_2017_2022.csv	Daily tweet volume of CryptoPunks from 2017 to 2022	4.1.1 Twitter Sentiment Analysis
analyzed_sentiment_cryptopunk_2017_2022.csv	Daily sentiment score of CryptoPunks from 2017 to 2022	4.1.1 Twitter Sentiment Analysis
analyzed_gender_skintone_transaction data.csv	The number and proportion of CryptoPunks traded from 2017 to 2022 according to gender and skin tone information	4.1.2 Gender and Skin Tone Analysis of Transaction Data
analyzed_keyword_sentiment and frequency.csv	Word frequency and sentiment score of gender and skin tone keywords in Tweets	4.1.3 Twitter Discussion Analysis of Ethical Keywords
merged dataset_without_sentiment.csv	Merged dataset for regression without sentiment score	4.3. The Structural Changes in CryptoPunks Valuation After 2021
merged dataset_with_sentiment.csv	Merged dataset for regression with sentiment score	4.2. The Influence of CryptoPunks Twitter Sentiment to CryptoPunks Valuation & 4.3. The Structural Changes in CryptoPunks Valuation After 2021

Code

Content	Section of Paper	URL
CryptoPunks Twitter Data Collection	3.1. Data Collection	https://github.com/HCI-Blockchain/NFT-2023/blob/main/code/query/twitter/Twitter_Query_CryptoPunks.ipynb
CryptoPunks Twitter Sentiment Analysis	4.1.1 Twitter Sentiment Analysis	https://github.com/HCI-Blockchain/NFT-2023/blob/main/code/analyze/social%20media%20analysis/Sentiment_Analysis_CryptoPunks.ipynb
CryptoPunks Transaction Gender and Skin Tone Analysis	4.1.2 Gender and Skin Tone Analysis of Transaction Data	https://github.com/HCI-Blockchain/NFT-2023/blob/main/code/analyze/transaction%20data%20visualization/Transaction_Data_Analysis_CryptoPunks_Gender_Skin_tone.ipynb
Word Frequency and Sentiment Analysis of Twitter Ethical Keywords	4.1.3 Twitter Discussion Analysis of Ethical Keywords	https://github.com/HCI-Blockchain/NFT-2023/blob/main/code/analyze/social%20media%20analysis/Twitter_Analysis_CryptoPunks_Gender_Skin_tone.ipynb
Hedonic Regression	4.2. The Influence of CryptoPunks Twitter Sentiment to CryptoPunks Valuation & 4.3. The Structural Changes in CryptoPunks Valuation After 2021	https://github.com/HCI-Blockchain/NFT-2023/blob/main/code/analyze/hedonic%20regression/Hedonic%20Regression_skin_gender_sentiment.ipynb
Regression Result Visualization (Lollipop Plot)	4.2. The Influence of CryptoPunks Twitter Sentiment to CryptoPunks Valuation & 4.3. The Structural Changes in CryptoPunks Valuation After 2021	https://github.com/HCI-Blockchain/NFT-2023/blob/main/code/analyze/hedonic%20regression/Lollipop_plot_Hedonic_Regression.ipynb

Data Visualization

Section 4.1.1 Twitter Sentiment Analysis

Fig.1: CryptoPunks daily tweet volume

Fig.2: CryptoPunks daily sentiment score

Fig.3: CryptoPunks sentiment distribution (days)

Section 4.1.2 Gender and Skin Tone Analysis of Transaction Data

Fig.4: CryptoPunks gender and skin tone distribution heatmap

Section 4.1.3 Twitter Discussion Analysis of Ethical Keywords

Fig.5: Word frequency of gender and skin tone keywords in tweets

Fig.6: Sentiment scores for gender and skin tone keywords

Section 4.2. The Influence of CryptoPunks Twitter Sentiment to CryptoPunks Valuation

Fig.7: The comparison of the performance of price predictors (with and without sentiment score)

Section 4.3. The Structural Changes in CryptoPunks Valuation After 2021

Fig.8: The comparison of the performance of price predictors (before and after 2021)