rsoft-latam/AgentTrust-8004
Tabular Classification • Updated • 1
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scanned_at_block int64 | n_agents_total int64 | sample_size int64 | sampled_with_reputation int64 | sampled_with_zero_reputation int64 | pct_with_reputation float64 | getClients_call_succeeded_for int64 | client_count_mean float64 | client_count_median int64 | client_count_max int64 | median_identity_age_days float64 | max_identity_age_days float64 |
|---|---|---|---|---|---|---|---|---|---|---|---|
47,041,190 | 54,802 | 2,000 | 1,055 | 945 | 52.8 | 2,000 | 0.99 | 1 | 25 | 91.1 | 124.3 |
ERC-8004 Base Mainnet Census — June 2026
Read-only census of AI agents registered under ERC-8004 (Trustless Agents) on Base mainnet, taken at block 47,041,190 (June 7, 2026).
Headline numbers (full scan + uniform sample):
- 54,802 agents registered in the IdentityRegistry (
0x8004A1...a432, deployed Feb 3, 2026) - Uniform random sample of 2,000 agents queried against the ReputationRegistry (
0x8004BAa1...9b63):- 52.8% have at least one feedback client; median 1 client per agent, max 25
- Median identity age 91.1 days (max 124.3) — the entire ecosystem is from 2026
- Reputation is keyed by
agentId(ERC-721 tokenId), not by owner address; client lists come fromgetClients(uint256)(selector0x42dd519c). Feedback content itself lives off-chain per the spec.
These magnitudes are consistent with the independent measurement of Xiong et al. (arXiv:2606.26028), who report ~51k agents on Base as of May 13, 2026.
Files
| File | Description |
|---|---|
census_base_mainnet.csv |
2,000 sampled agents: token_id, owner, mint_block, identity_age_days, client_count, has_reputation |
census_summary.json |
Aggregates for the full scan and the sample |
census_base_mainnet.py |
Reproduction script — read-only JSON-RPC, no keys required, adaptive log chunking, resumable cache |
fig_census.png |
Distribution of on-chain reputation (log scale) and identity age |
Reproduce
python3 -u census_base_mainnet.py # public Base RPC, read-only
Identity age is computed deterministically from block numbers (Base ≈ 2 s/block). Public RPCs cap eth_getLogs ranges; the script chunks adaptively and caches progress.
License & attribution
Raw data is public on-chain (Base mainnet). This compilation, sampling and derived features are released under CC-BY-4.0 — please attribute:
Pari Cahuna, R. E. (2026). ERC-8004 Base Mainnet Census (June 2026). Master's in Data Science & AI, UAGRM School of Engineering. https://huggingface.co/datasets/rsoft-latam/erc8004-base-census-jun2026
Companion model: rsoft-latam/AgentTrust-8004.
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