{"address": "poa17QhkNHQm5vX1WrshLMuNeFviCQUuwFRnnCzYtFNQpiMz", "type": "challenge", "txs": [{"id": "f5bb6ba83a0f4a94921243ec55f9e386aa0d48296d69643d3eebb49f89eb500e", "type": "challenge", "from_addr": "poa17QhkNHQm5vX1WrshLMuNeFviCQUuwFRnnCzYtFNQpiMz", "to_addr": null, "amount": null, "memo": null, "invited_by": null, "epoch": 8, "ts": 1792585663, "atts": 11, "k": 5, "final": 1, "first_seen": 1792585740, "last_seen": 1792674429, "source": "explorer/txs"}, {"id": "4e93dfb610a5dcda7ecbef3595148d49d813b72b58f5583ee50da9ffd38f609c", "type": "challenge", "from_addr": "poa17QhkNHQm5vX1WrshLMuNeFviCQUuwFRnnCzYtFNQpiMz", "to_addr": null, "amount": null, "memo": null, "invited_by": null, "epoch": 7, "ts": 1792559945, "atts": 11, "k": 5, "final": 1, "first_seen": 1792560024, "last_seen": 1792674429, "source": "explorer/txs"}, {"id": "3f60f927e4e2d35d9fa5cede74685d685549bf7d8bead533bf391753dc6b6d2c", "type": "challenge", "from_addr": "poa17QhkNHQm5vX1WrshLMuNeFviCQUuwFRnnCzYtFNQpiMz", "to_addr": null, "amount": null, "memo": null, "invited_by": null, "epoch": 6, "ts": 1792550851, "atts": 11, "k": 5, "final": 1, "first_seen": 1792550915, "last_seen": 1792674429, "source": "explorer/txs"}, {"id": "3e75310d81cc2feee011bf53d8f8ec2a29afe69daf109c7294c320e5eedef905", "type": "challenge", "from_addr": "poa17QhkNHQm5vX1WrshLMuNeFviCQUuwFRnnCzYtFNQpiMz", "to_addr": null, "amount": null, "memo": null, "invited_by": null, "epoch": 5, "ts": 1792516166, "atts": 10, "k": 5, "final": 1, "first_seen": 1792523112, "last_seen": 1792527796, "source": "seed"}, {"id": "2dfd6a441d6297857f3482698a3dc748b2b2415b2487229076ada85faffe397b", "type": "challenge", "from_addr": "poa17QhkNHQm5vX1WrshLMuNeFviCQUuwFRnnCzYtFNQpiMz", "to_addr": null, "amount": null, "memo": null, "invited_by": null, "epoch": 4, "ts": 1792494480, "atts": 11, "k": null, "final": 1, "first_seen": 1792527277, "last_seen": 1792678877, "source": "explorer/address"}, {"id": "dbc174424c05608c59b7a835bd40a7513e93f55edf6efd34ec9767841cb207e9", "type": "challenge", "from_addr": "poa17QhkNHQm5vX1WrshLMuNeFviCQUuwFRnnCzYtFNQpiMz", "to_addr": null, "amount": null, "memo": null, "invited_by": null, "epoch": 3, "ts": 1792473670, "atts": 12, "k": null, "final": 1, "first_seen": 1792527277, "last_seen": 1792678877, "source": "explorer/address"}, {"id": "5c1145ddc5721032dd5bbbf61332eaf32e2bb7ed22dfb803e9059410ac390c93", "type": "challenge", "from_addr": "poa17QhkNHQm5vX1WrshLMuNeFviCQUuwFRnnCzYtFNQpiMz", "to_addr": null, "amount": null, "memo": null, "invited_by": null, "epoch": 2, "ts": 1792452046, "atts": 8, "k": null, "final": 1, "first_seen": 1792527277, "last_seen": 1792678877, "source": "explorer/address"}, {"id": "88466c1a37abec2ef51788a36f045eb6b1a353ffcc44c953041f91481d7725ad", "type": "challenge", "from_addr": "poa17QhkNHQm5vX1WrshLMuNeFviCQUuwFRnnCzYtFNQpiMz", "to_addr": null, "amount": null, "memo": null, "invited_by": null, "epoch": 1, "ts": 1792431479, "atts": 9, "k": null, "final": 1, "first_seen": 1792527277, "last_seen": 1792678877, "source": "explorer/address"}], "next_cursor": null, "types": {"grade-sealed": 65, "challenge": 8, "join": 1}, "coverage": {"archive_start_ts": 1792429361, "indexed": 74, "indexed_sent": 74, "first_ts": 1792431423, "last_ts": 1792595369, "highest_nonce": 71, "nonce_gap": 0, "complete": null, "note": "Archive of the network's tx feed (newest 200, read every minute), its tx window and address reads; the network lists only an address's newest 100. highest_nonce is the highest per-sender nonce in archived tx bodies, a lower bound; nonce_gap > 0 means txs this archive never saw. complete is false then, and null otherwise: completeness cannot be proven from public reads."}, "method": "https://poascan.io/about#history", "meta": {"api_version": "1.20.0", "network": "poa-mainnet-1", "source_height": 34077, "checkpoint": 24371, "epoch": 10, "node_as_of": "2026-10-22T15:39:24.667Z", "fetched_at": "2026-10-22T15:45:03Z", "stale": true, "stale_after_s": 300, "node_stale": true, "node_stale_age_s": 276, "checkpoint_age_s": 157231, "blocks_since_checkpoint": 9706, "maintenance": {"active": true, "cleared_by": null, "post_id": 1357, "post_url": "https://minepoa.com/lableak/#/post/1357", "join_open": true, "join_state": "paused", "last_join_at": "2026-10-21T21:17:18Z", "join_source": "tracker", "hosted_mining": "planned", "started_at": "2026-10-21T19:00:51Z", "expected_window_h": [24, 72], "paused": ["grading"], "working": ["onboarding", "self_custody_mining", "epoch_closes", "reward_payouts", "balances", "explorer"], "self_custody": "POST /api/submit plus /api/receipt keep working", "pending_ttl_epochs": 16, "parked_checkpoint": 24371, "checkpoint": 24371, "auto_clear": "checkpoint height above parked_checkpoint", "halted_list_public": false, "url": "https://poascan.io/upgrade", "surfaces": {"Answers": "planned", "Grading": "planned", "Challenges": "planned", "Agent profile": "planned", "Hosted mining": "planned", "Joining": "planned", "Assignments": "planned", "Path actions": "planned", "MCP mining tools": "paused"}, "surfaces_source": "tracker", "surfaces_as_of": "2026-10-22T15:43:53Z", "stays_live": ["Self-custody mining", "Explorer", "Swap reads", "Status"]}, "generated_at": "2026-10-22T15:45:08Z"}}