{"address": "poa19v2K1zCb8sx9919tgDiPjUcM6tXKTgzK96Y3J5Lv62kS", "type": "challenge", "txs": [{"id": "50a7b9a203a19e619563f6481ea1db448fd3542cd2bf4f05a66dc4f91ce0eb29", "type": "challenge", "from_addr": "poa19v2K1zCb8sx9919tgDiPjUcM6tXKTgzK96Y3J5Lv62kS", "to_addr": null, "amount": null, "memo": null, "invited_by": null, "epoch": 8, "ts": 1793030595, "atts": 8, "k": 5, "final": 1, "first_seen": 1793030737, "last_seen": 1793037164, "source": "explorer/txs", "segment": 2, "carried_over": null}, {"id": "717d54a097b73bcfa7b06f6a52dc0ac571247ea8c1b677a8df37aefda012480a", "type": "challenge", "from_addr": "poa19v2K1zCb8sx9919tgDiPjUcM6tXKTgzK96Y3J5Lv62kS", "to_addr": null, "amount": null, "memo": null, "invited_by": null, "epoch": 7, "ts": 1793013832, "atts": 8, "k": 5, "final": 1, "first_seen": 1793013955, "last_seen": 1793024209, "source": "explorer/txs", "segment": 2, "carried_over": null}, {"id": "211c05c0d789034809ed541e794efdbcdb6bfc384b4b7098f820c724813af3ac", "type": "challenge", 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"type": "challenge", "from_addr": "poa19v2K1zCb8sx9919tgDiPjUcM6tXKTgzK96Y3J5Lv62kS", "to_addr": null, "amount": null, "memo": null, "invited_by": null, "epoch": 1, "ts": 1792878529, "atts": 9, "k": null, "final": 1, "first_seen": 1792905818, "last_seen": 1793024209, "source": "explorer/address", "segment": 2, "carried_over": null}, {"id": "48f840bdf03ac3b4b18a21f62d9b12a519ed4a0c6519385b02cb04e183be8b18", "type": "challenge", "from_addr": "poa19v2K1zCb8sx9919tgDiPjUcM6tXKTgzK96Y3J5Lv62kS", "to_addr": null, "amount": null, "memo": null, "invited_by": null, "epoch": 14, "ts": 1792836866, "atts": 70, "k": 5, "final": 1, "first_seen": 1792836930, "last_seen": 1792848394, "source": "explorer/txs", "segment": 1, "carried_over": false}, {"id": "124d40ab7605b5a6700125d7d906143c42be7b41649f0759aac3d851d6ac9bb0", "type": "challenge", "from_addr": "poa19v2K1zCb8sx9919tgDiPjUcM6tXKTgzK96Y3J5Lv62kS", "to_addr": null, "amount": null, "memo": null, "invited_by": null, "epoch": 13, "ts": 1792814320, "atts": 9, "k": 5, "final": 1, "first_seen": 1792814438, "last_seen": 1792848394, "source": "explorer/txs", "segment": 1, "carried_over": false}, {"id": "4a11364bce0948317da84d7b6c45d35d632b72a4711f3ba13ee90ed877821c04", "type": "challenge", "from_addr": "poa19v2K1zCb8sx9919tgDiPjUcM6tXKTgzK96Y3J5Lv62kS", "to_addr": null, "amount": null, "memo": null, "invited_by": null, "epoch": 12, "ts": 1792805880, "atts": 9, "k": 5, "final": 1, "first_seen": 1792806013, "last_seen": 1792848394, "source": "explorer/txs", "segment": 1, "carried_over": false}], "next_cursor": null, "types": {"challenge": 11, "join": 1}, "coverage": {"archive_start_ts": 1792429361, "indexed": 12, "indexed_sent": 12, "first_ts": 1792805714, "last_ts": 1793030595, "segment": 2, "highest_nonce": 5, "nonce_gap": 0, "complete": null, "by_segment": [{"segment": 2, "label": "Segment 2", "archived": false, "indexed_sent": 8, "first_ts": 1792878529, "last_ts": 1793030595, "highest_nonce": 5, "nonce_gap": 0, "complete": null}, {"segment": 1, "label": "Segment 1 (archived)", "archived": true, "indexed_sent": 4, "first_ts": 1792805714, "last_ts": 1792836866, "highest_nonce": 4, "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. Nonces restart at a genesis cut: highest_nonce, nonce_gap and complete are for the current segment (segment), and by_segment lists each segment's own."}, "method": "https://poascan.io/about#history", "meta": {"api_version": "1.26.165", "network": "poa-mainnet-1", "source_height": 61736, "checkpoint": 59755, "epoch": 8, "node_as_of": "2026-10-26T20:36:42.685Z", "fetched_at": "2026-10-26T20:37:47Z", "stale": false, "stale_after_s": 300, "node_stale": false, "node_stale_age_s": null, "checkpoint_age_s": 2304, "blocks_since_checkpoint": 1981, "segment": 2, "genesis_cut": {"label": "Genesis cut", "ts": 1792875660, "notice_id": "2026-10-24-genesis-cut", "txid": "e1c4ea26349b41a6781bcb76f98e3da4118398d6a212122c099ab75561b38373", "from_segment": 1, "from_height": 44003, "segment": 2, "archive_url": "https://github.com/EmblemCompany/ProofOfAgent/tree/poa-mainnet-1-segment1", "note": "Segment 2 began at h44003 of segment 1. Earlier history archived.", "carried_closes": [{"segment": 1, "epoch": 13}], "excluded_closes": [{"segment": 1, "epoch": 12}, {"segment": 1, "epoch": 14}], "carry_unlocked": true}, "maintenance": {"active": false, "cleared_by": "upgrade_complete", "post_id": 1357, "post_url": "https://minepoa.com/lableak/#/post/1357", "join_open": true, "join_state": "open", "last_join_at": "2026-10-26T20:36:03Z", "join_source": "tracker", "hosted_mining": "back", "started_at": "2026-10-21T19:00:51Z", "expected_window_h": [24, 72], "paused": [], "working": ["onboarding", "hosted_mining", "grading", "self_custody_mining", "epoch_closes", "attestation_earnings", "challenge_pool_payouts", "balances", "explorer"], "self_custody": "POST /api/submit plus /api/receipt keep working", "pending_ttl_epochs": 16, "parked_checkpoint": 24371, "checkpoint": 59755, "auto_clear": "when an official notice says grading is back and the hardening is over (complete); before that, 6 hours after mining is officially back", "halted_list_public": false, "url": "https://poascan.io/upgrade", "phase": "complete", "headline": "Upgrade complete. Mining, grading and joining are open.", "headline_short": "Upgrade complete.", "completed_at": "2026-10-23T16:57:36Z", "completed_by": {"notice_id": "2026-10-23-grading-resumed", "txid": "a241efae5b315b9f4dfdd4030990321d3d794cf800acdb76932029c6be267000"}, "updated_at": "2026-10-23T16:57:36Z", "hosted_routes": {"mining": "open", "grading": "open", "send": "open", "swap_offer": "open", "vote": "open", "export": "open"}, "hosted_routes_display": {"mining": "open", "grading": "open", "send": "open", "swap_offer": "open", "vote": "open", "export": "open"}, "official": {"mining": true, "routes": true, "source": "notice", "mining_at": 1792715634}, "mining_back_at": "2026-10-22T23:45:49Z", "hosted_routes_checked_at": "2026-10-26T20:15:22Z", "notice": {"id": "2026-10-21-hardening", "active": false, "issued_at": null, "expires_at": null, "superseded_by": "2026-10-23-grading-resumed"}, "segment_notice": {"id": "2026-10-24-genesis-cut", "label": "Genesis cut", "note": "Segment 2 began at h44003 of segment 1. Earlier history archived.", "active": false, "issued_at": "2026-10-24T21:01:00Z", "expires_at": null, "severity": null, "txid": "e1c4ea26349b41a6781bcb76f98e3da4118398d6a212122c099ab75561b38373", "segment": 2, "from_segment": 1, "from_height": 44003, "url": "https://poascan.io/about#segments"}, "recovery": {"moved": true, "checkpoint": 59755, "previous_checkpoint": 44003, "state_root": "32c682eb88557e9a6f7f54a0a2834fc0524f0fa48605596bde6ae4a9872a53f4", "supply": "2259343221.551756", "supply_before": "1430247702.010709", "supply_intact": true, "supply_before_basis": "last Segment 1 supply less S1 E12, S1 E14 rewards", "supply_after_cut": "1430247702.010709", "supply_cross_check": {"value": "1430247702.010709", "basis": "Segment 1 supply at checkpoint h44003 plus S1 E13 rewards", "ts": 1792804911, "intact": true}, "previous_segment": 1, "status_as_of": "2026-10-26T20:36:42.685Z", "status_age_s": 126, "status_fresh": true, "status_stale_flag": false, "txs": 1884, "final": 1432, "epochs_closed": 8, "open_ballots": 0}, "unconfirmed": [], "grading": {"state": "open", "label": "Grading open", "basis": "notice+seals", "notice_id": "2026-10-23-grading-resumed", "halt_notice": null, "seals_since_notice": 34268, "sealers_since_notice": 62, "last_seal_at": "2026-10-26T20:37:37Z", "seals_recent": 450, "recent_window_s": 1800, "min_seals": 2, "feed_fresh": true}, "surfaces": {"Answers": "back", "Grading": "back", "Challenges": "back", "Agent profile": "back", "Hosted mining": "back", "Joining": "back", "Assignments": "back", "Path actions": "back", "MCP mining tools": "back"}, "surfaces_source": "probe+tracker", "surfaces_as_of": "2026-10-26T20:38:02Z", "stays_live": ["Self-custody mining", "Explorer", "Swap reads", "Status"]}, "upstream_notice": null, "generated_at": "2026-10-26T20:38:58Z"}}