Ocean Data Challenges

We run community annotation challenges that turn cluttered, inconsistent data into reliable, well-labeled datasets. Contributors complete short tasks, pass quality checks, and earn rewards. The result is high-quality and dependable datasets that improve model accuracy and fairness.

Active challenges

Participate in Ocean Data Challenges to earn money and rewards using your data science skills.

EARN

Get rewarded for accurate, consistent labeling.

LEARN

Improve your knowledge and skills with clear guides and examples.

BUILD

Help create high-quality and reliable datasets that power better AI.

Annotators Hub

Annotators Hub is a community initiative where anyone can contribute to building high-quality AI datasets. Participants take part in structured challenges to label and enrich publicly available data provided by Ocean Protocol. The result is curated, AI-ready datasets that fuel better models while giving contributors rewards

2025 Leaderboard

Scale the ranking to win our yearly championship

RankParticipantScoreReward
#1EKYNOX5,208$1405.63
#2NeuralNinja2,924$789.18
#3Udotmfon Udim2,022$545.73
#4cyril1,698$458.29
#5Joseph joe1,677$452.62
#6Boniface Udo1,355$365.71
#7Malihe1,354$365.44
#8yas AF893$241.02
#9Joseph Edet890$240.21
#10David Michael820$221.32
#11GODEN810$218.62
#12Sophia Carter777$209.71
#13Ekemini Ntuen762$205.66
#14Joel Moses759$204.85
#15Emmanuel Moses755$203.77
#16Asaidu adeboye690$186.23
#17Abinesh S611$164.91
#18Tony Curtis571$154.11
#19David Nwosu565$152.49
#20Dhanunjaya Bora554$149.52
#21Olivia Brooks530$143.05
#22DSilmann505$136.30
#23John Kearins502$135.49
#24DebarFx501$135.22
#25e_okpo494$133.33
#26Azariah Ekanem477$128.74
#27Priscillia Archibong442$119.30
#28PINK DANIEL402$108.50
#29Henry368$99.32
#30Abraham Sunday366$98.78
#31crypto zeal342$92.31
#32Basira Ibrahim321$86.64
#33sak vile308$83.13
#34Daniel Emmanuel303$81.78
#35Yuti Digital301$81.24
#36Richard Bisong289$78.00
#37Sunday Stella259$69.90
#38Reema pal252$68.01
#39Troy Viyn250$67.47
#40Kaothara Balogun246$66.39
#41Sharon Ugochukwu222$59.92
#42keshav namdev222$59.92
#43Christian Nebo188$50.74
#44Hamdallah Akanni182$49.12
#45Gideon Joseph158$42.64
#46Rhythm Suthar156$42.10
#47Mfonabasi Bassey154$41.56
#48John R146$39.41
#49ThankGod Sunday144$38.87
#50yellow berasa137$36.98
#51Dave Job135$36.44
#52Kailre Vij133$35.90
#53Shadrach Abah133$35.90
#54daneva saliswal133$35.90
#55Afonso127$34.28
#56Tanya Niyer115$31.04
#57Deevan Kelviin111$29.96
#58Daniel Nwid111$29.96
#59Benjamin Clarke105$28.34
#60GumusHan105$28.34
#61ENOCK Maikasuwa94$25.37
#62Jacob Caesar91$24.56
#63Parv Pareek85$22.94
#64Abigail Emmanuel75$20.24
#65Chineme Nebo73$19.70
#66Felicity Ruby66$17.81
#67Eugene Tulu65$17.54
#68Mercy Antok64$17.27
#69Young John54$14.57
#70iamnotji54$14.57
#71skponchain37$9.99
#72Sunaina Shivadas36$9.72
#73Aleks30$8.10
#74Khushi Keswani24$6.48
#75Rising King23$6.21
#76Andreea Zaharescu20$5.40
#77Samson Odesina16$4.32
#78Hossein Karami13$3.51
#79Mfon Assam13$3.51
#80Jose Giraldo10$2.70
#81Merlin San10$2.70
#82hauwa7$1.89
#83Magali Morin6$1.62
#84Samah4$1.08
#85Defi Xpert4$1.08
#86Mohd Rizwan4$1.08
#87Ahan M R2$0.54
#88Kpepime Ikpong1$0.27

Past challenges

Review previous challenges to gather valuable insights and inspiration for your participation.

CivicLens - Turning Speeches into Signals

Data Annotation

Annotate short passages and questions. Label topic focus, stance/vote intent, tone, and key claims.

This challenge has now ended

Annotate and compete in the LiteracyForge Challenge - win your share of $10K

Competition

This challenge has now ended

Electricity Price Forecasting

Energy Markets

This challenge has now ended

Net-Zero Buildings Data Challenge

Data Challenge

This challenge has now ended

Dubai Real Estate Price Prediction

Competition

This challenge has now ended

Formula 1 2024 Mexico Grand Prix

Competition

This challenge has now ended

Formula 1 Racing Challenge

Competition

This challenge has now ended

Crypto Factor Modeling Data Challenge

Competition

This challenge has now ended