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"type": "challenge", "from_addr": "poa19XUqEq5cW7n5GCjFYes1seop5wQ3zX4So1XB2BoGrPfD", "to_addr": null, "amount": null, "memo": null, "invited_by": null, "epoch": 5, "ts": 1792975218, "atts": 24, "k": 5, "final": 1, "first_seen": 1792975237, "last_seen": 1793165117, "source": "explorer/txs", "segment": 2, "carried_over": null}, {"id": "369e9d69963a3a6af89a7cf1de138f21e077753f62f1ee2c0ab4f94d50e3cb66", "type": "challenge", "from_addr": "poa19XUqEq5cW7n5GCjFYes1seop5wQ3zX4So1XB2BoGrPfD", "to_addr": null, "amount": null, "memo": null, "invited_by": null, "epoch": 4, "ts": 1792945309, "atts": 30, "k": 5, "final": 1, "first_seen": 1792945328, "last_seen": 1793163614, "source": "explorer/txs", "segment": 2, "carried_over": null}, {"id": "5cb9d49be41e5f8074d2d3f73ffe844171186b624877d5d1a619268faca31e18", "type": "challenge", "from_addr": "poa19XUqEq5cW7n5GCjFYes1seop5wQ3zX4So1XB2BoGrPfD", "to_addr": null, "amount": null, "memo": null, "invited_by": null, "epoch": 3, "ts": 1792933534, "atts": 9, "k": 5, "final": 1, "first_seen": 1792933649, "last_seen": 1793163314, "source": "explorer/txs", "segment": 2, "carried_over": null}, {"id": "db4a10195c8c47e314da2f425bf29af5bbfef2fe29123a36447d8c0fd6baa0c0", "type": "join", "from_addr": "poa19XUqEq5cW7n5GCjFYes1seop5wQ3zX4So1XB2BoGrPfD", "to_addr": null, "amount": null, "memo": "hosted join: ElinYarrow", "invited_by": null, "epoch": null, "ts": 1792919501, "atts": 9, "k": 5, "final": 1, "first_seen": 1792919564, "last_seen": 1793162696, "source": "explorer/txs", "segment": 2, "carried_over": null}], "next_cursor": null, "types": {"challenge": 10, "join": 1}, "coverage": {"archive_start_ts": 1792429361, "indexed": 11, "indexed_sent": 11, "first_ts": 1792919501, "last_ts": 1793182827, "segment": 2, "highest_nonce": 5, "nonce_gap": 0, "complete": null, "by_segment": [{"segment": 2, "label": "Segment 2", "archived": false, "indexed_sent": 11, "first_ts": 1792919501, "last_ts": 1793182827, "highest_nonce": 5, "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": "1.26.198", "network": "poa-mainnet-1", "source_height": 90213, "checkpoint": 89282, "epoch": 15, "node_as_of": "2026-10-28T10:39:32.632Z", "fetched_at": "2026-10-28T10:43:47Z", "stale": true, "stale_after_s": 300, "node_stale": true, "node_stale_age_s": 257, "checkpoint_age_s": 1601, "blocks_since_checkpoint": 931, "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": "2026-10-28T10:42:34Z", "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": 89282, "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": "Probes show Swap writes and Tx lookup halted or down. The upgrade notice said all paths open.", "headline_short": "Routes halted.", "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": "unknown", "vote": "open", "export": "open"}, "hosted_routes_display": {"mining": "open", "grading": "open", "send": "open", "swap_offer": "down", "vote": "open", "export": "open"}, "swap_route": {"state": "down", "display": "down", "writable": false, "probe_state": "down", "http": null, "checked_at": "2026-10-28T10:39:27Z", "since": "2026-10-28T10:29:28Z", "stale": false, "feed": "Down", "label": "Down", "basis": "write_check"}, "official": {"mining": true, "routes": true, "source": "notice", "mining_at": 1792715634}, "mining_back_at": "2026-10-22T23:45:49Z", "hosted_routes_checked_at": "2026-10-28T10:39:27Z", "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": 89282, "previous_checkpoint": 44003, "state_root": "394a1bbf035fea624b0bf7ccebfe44e16a4da28d83ccf4fb2399608743b04a2f", "supply": "2980433125.141785", "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": "2026-10-28T10:39:32.632Z", "status_age_s": 261, "status_fresh": true, "status_stale_flag": true, "txs": 903, "final": 700, "epochs_closed": 15, "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": 45303, "sealers_since_notice": 83, "last_seal_at": "2026-10-28T10:24:26Z", "seals_recent": 63, "recent_window_s": 1800, "min_seals": 2, "feed_fresh": true}, "route_halts": {"as_of": "2026-10-28T10:39:27Z", "halted": [{"id": "swap_writes", "label": "Swap writes", "state": "down", "since": "2026-10-28T10:29:28Z", "stale": false}, {"id": "tx_lookup", "label": "Tx lookup", "state": "down", "since": "2026-10-28T10:25:03Z", "stale": false}], "url": "https://poascan.io/api/v1/routes"}, "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": "tracker", "surfaces_as_of": "2026-10-28T10:35:00Z", "stays_live": ["Self-custody mining", "Explorer", "Swap reads", "Status"]}, "upstream_notice": null, "generated_at": "2026-10-28T10:43:59Z"}}