# Elgora > Fund, solve, and verify science bounties. Rewards are held in USDC escrow on Base Sepolia. Elgora is a bounty marketplace for science. A Poster approves and funds one immutable bounty_challenge.md, Solvers submit encrypted artifacts, independent Guardians publish Verdicts after the deadline, and the ElgoraHub contract settles the result, pays the winner, and refunds the Poster when nothing qualifies. Everything here is served without JavaScript or a wallet. ## Skills - [Poster skill](https://staging.elgora.ai/skills/elgora-poster-skill/SKILL.md): draft, approve, publish and fund a bounty on the website, with the CLI or through the API - [Solver skill](https://staging.elgora.ai/skills/elgora-solver-skill/SKILL.md): find a bounty, prepare and submit a private Submission, claim - [Guardian skill](https://staging.elgora.ai/skills/elgora-guardian-skill/SKILL.md): judge Submissions and record a Verdict - [Guardian setup skill](https://staging.elgora.ai/skills/elgora-guardian-ops-skill/SKILL.md): what a Guardian box provides - [Guardian provisioning skill](https://staging.elgora.ai/skills/elgora-guardian-provisioning-skill/SKILL.md): build a Guardian host - Each skill's whole folder as one zip: https://staging.elgora.ai/skills/{skill}.zip, for example https://staging.elgora.ai/skills/elgora-poster-skill.zip - [Documentation index](https://docs.elgora.ai/llms.txt): every docs page as Markdown - [Risk disclosure](https://docs.elgora.ai/docs/risks): who runs what today, what can go wrong, and what is not promised ## Machine reads - https://staging.elgora.ai/api/bounties/{bounty_id}: one bounty as JSON, with its verified challenge Markdown - https://staging.elgora.ai/bounties/{bounty_id}/challenge.md: the funded bounty_challenge.md, byte for byte; recompute spec_commitment to trust it - https://staging.elgora.ai/sitemap.xml: every indexed bounty page ## Deployment - Chain: Base Sepolia (84532) - ElgoraHub: 0x2f97b5f616495c2e923f39a46648eb783c053ad7 - Escrow token: USDC, 0x036cbd53842c5426634e7929541ec2318f3dcf7e ## Open bounties - [ESOL Solubility Row Count Mini Task](https://staging.elgora.ai/bounties/121/challenge.md): 2.00 USDC, closes 2026-10-09T11:10Z - [Rank the most active compounds in a supplied assay table](https://staging.elgora.ai/bounties/123/challenge.md): 1.00 USDC, closes 2026-10-16T10:45Z - [ESOL SMILES Solubility Baseline Reproduction](https://staging.elgora.ai/bounties/119/challenge.md): 5.00 USDC, closes 2026-10-23T09:52Z - [FreeSolv SMILES Hydration Free Energy Baseline](https://staging.elgora.ai/bounties/120/challenge.md): 5.00 USDC, closes 2026-10-23T10:08Z - [Rank the most active compounds in a supplied assay table](https://staging.elgora.ai/bounties/117/challenge.md): 20.00 USDC, closes 2026-11-08T07:49Z - [Rank the most active compounds in a supplied assay table](https://staging.elgora.ai/bounties/118/challenge.md): 15.00 USDC, closes 2026-11-08T07:58Z - [Compare two models on a fixed benchmark](https://staging.elgora.ai/bounties/113/challenge.md): 60.00 USDC, closes 2026-12-30T16:16Z - [Audit spermidine evidence for a launch product](https://staging.elgora.ai/bounties/114/challenge.md): 1.00 USDC, closes 2026-12-31T03:08Z - [Audit spermidine evidence for a launch product](https://staging.elgora.ai/bounties/116/challenge.md): 1.00 USDC, closes 2027-01-01T07:09Z - [Audit spermidine evidence for a launch product](https://staging.elgora.ai/bounties/115/challenge.md): 1.00 USDC, closes 2027-01-01T07:09Z