{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:CIPKMNLYTT3QKPEWHTKUJ3A7VN","short_pith_number":"pith:CIPKMNLY","canonical_record":{"source":{"id":"2508.20074","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2025-08-27T17:40:41Z","cross_cats_sorted":[],"title_canon_sha256":"6156dc2167b713dfd97ae53a0a678a2a3a0f15300c16f4a5fee7baeda9cb14f7","abstract_canon_sha256":"4b67aa7f4377b8b27860d4d752a00f56fa84bea9d451e6964daac0baa7cc3176"},"schema_version":"1.0"},"canonical_sha256":"121ea635789cf7053c963cd544ec1fab48662f50965154c21abdaecbe0c55fc9","source":{"kind":"arxiv","id":"2508.20074","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2508.20074","created_at":"2026-07-05T12:00:23Z"},{"alias_kind":"arxiv_version","alias_value":"2508.20074v1","created_at":"2026-07-05T12:00:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2508.20074","created_at":"2026-07-05T12:00:23Z"},{"alias_kind":"pith_short_12","alias_value":"CIPKMNLYTT3Q","created_at":"2026-07-05T12:00:23Z"},{"alias_kind":"pith_short_16","alias_value":"CIPKMNLYTT3QKPEW","created_at":"2026-07-05T12:00:23Z"},{"alias_kind":"pith_short_8","alias_value":"CIPKMNLY","created_at":"2026-07-05T12:00:23Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:CIPKMNLYTT3QKPEWHTKUJ3A7VN","target":"record","payload":{"canonical_record":{"source":{"id":"2508.20074","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2025-08-27T17:40:41Z","cross_cats_sorted":[],"title_canon_sha256":"6156dc2167b713dfd97ae53a0a678a2a3a0f15300c16f4a5fee7baeda9cb14f7","abstract_canon_sha256":"4b67aa7f4377b8b27860d4d752a00f56fa84bea9d451e6964daac0baa7cc3176"},"schema_version":"1.0"},"canonical_sha256":"121ea635789cf7053c963cd544ec1fab48662f50965154c21abdaecbe0c55fc9","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T12:00:23.866182Z","signature_b64":"LLHb0BUxDWfrQ92zP1/TVzKTSKcEac0PcxBUmwr4atVUK4Q31M4fRIGTqwqm915XRJEbwEQlzJFHD1gH1VoHCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"121ea635789cf7053c963cd544ec1fab48662f50965154c21abdaecbe0c55fc9","last_reissued_at":"2026-07-05T12:00:23.865673Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T12:00:23.865673Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2508.20074","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T12:00:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"klvVCeo0O8YTiVlw6HY2ADiKo8fIV3cbpvz0CFLQMS/KnBGH001YG2zXGaKzZLtzHlmn1hUR1IhrVJCEdivJDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-09T06:54:51.332139Z"},"content_sha256":"2ed7e33219c2fb50a397b26abb8a574a5b29c8dbfd8f2dbb1afdce909ecac352","schema_version":"1.0","event_id":"sha256:2ed7e33219c2fb50a397b26abb8a574a5b29c8dbfd8f2dbb1afdce909ecac352"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:CIPKMNLYTT3QKPEWHTKUJ3A7VN","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"X-ray view of a massive node of the Cosmic Web at z=3 II. Discovery of extended X-ray emission around a hyperluminous QSO","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Andrea Travascio, Antonio Pensabene, Enrico Piconcelli, Fabio Vito, Gabriele Pezzulli, Giada Quadri, Giuseppina Fabbiano, Luca Di Mascolo, Luca Zappacosta, Marika Lepore, Marta Galbiati, Martin Elvis, Michela Esposito, Nicholas Ledos, Paolo Tozzi, Riccardo Middei, Sebastiano Cantalupo, Stefano Borgani, Titouan Lazeyras, Weichen Wang","submitted_at":"2025-08-27T17:40:41Z","abstract_excerpt":"While the warm, ionized gas in the CGM at z>3 is now routinely observed around bright QSOs in Lya emission, little is known about the CGM hot phase due to its expected faintness in the X-ray band, often referred to as the ICM. Here, we report the analysis of 634 ks of Chandra X-ray observations in the MQN01 Cosmic Node, a region containing one of the brightest Lya nebulae and the largest galaxy overdensity discovered so far at z>3. We detect 66 net counts of X-ray emission in the 0.5-2 keV band extending to at least 30 kpc from the brightest QSO in MQN01. The morphology and spectrum are consis"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2508.20074","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2508.20074/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T12:00:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dDU9qKJpzX8gN2ZLTq0M1zl7F5mP9Y7kqhYZUG2P5IxdPY1GJJYbd+wGgPXJGetCnS3E1UVaElWX2jbCfwjDAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-09T06:54:51.332817Z"},"content_sha256":"f21e6e7630523b90fb74d3561d537bb0eed2bf45f05f43893f4b1eb5d733258d","schema_version":"1.0","event_id":"sha256:f21e6e7630523b90fb74d3561d537bb0eed2bf45f05f43893f4b1eb5d733258d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CIPKMNLYTT3QKPEWHTKUJ3A7VN/bundle.json","state_url":"https://pith.science/pith/CIPKMNLYTT3QKPEWHTKUJ3A7VN/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CIPKMNLYTT3QKPEWHTKUJ3A7VN/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-07-09T06:54:51Z","links":{"resolver":"https://pith.science/pith/CIPKMNLYTT3QKPEWHTKUJ3A7VN","bundle":"https://pith.science/pith/CIPKMNLYTT3QKPEWHTKUJ3A7VN/bundle.json","state":"https://pith.science/pith/CIPKMNLYTT3QKPEWHTKUJ3A7VN/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CIPKMNLYTT3QKPEWHTKUJ3A7VN/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:CIPKMNLYTT3QKPEWHTKUJ3A7VN","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"4b67aa7f4377b8b27860d4d752a00f56fa84bea9d451e6964daac0baa7cc3176","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2025-08-27T17:40:41Z","title_canon_sha256":"6156dc2167b713dfd97ae53a0a678a2a3a0f15300c16f4a5fee7baeda9cb14f7"},"schema_version":"1.0","source":{"id":"2508.20074","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2508.20074","created_at":"2026-07-05T12:00:23Z"},{"alias_kind":"arxiv_version","alias_value":"2508.20074v1","created_at":"2026-07-05T12:00:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2508.20074","created_at":"2026-07-05T12:00:23Z"},{"alias_kind":"pith_short_12","alias_value":"CIPKMNLYTT3Q","created_at":"2026-07-05T12:00:23Z"},{"alias_kind":"pith_short_16","alias_value":"CIPKMNLYTT3QKPEW","created_at":"2026-07-05T12:00:23Z"},{"alias_kind":"pith_short_8","alias_value":"CIPKMNLY","created_at":"2026-07-05T12:00:23Z"}],"graph_snapshots":[{"event_id":"sha256:f21e6e7630523b90fb74d3561d537bb0eed2bf45f05f43893f4b1eb5d733258d","target":"graph","created_at":"2026-07-05T12:00:23Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2508.20074/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"While the warm, ionized gas in the CGM at z>3 is now routinely observed around bright QSOs in Lya emission, little is known about the CGM hot phase due to its expected faintness in the X-ray band, often referred to as the ICM. Here, we report the analysis of 634 ks of Chandra X-ray observations in the MQN01 Cosmic Node, a region containing one of the brightest Lya nebulae and the largest galaxy overdensity discovered so far at z>3. We detect 66 net counts of X-ray emission in the 0.5-2 keV band extending to at least 30 kpc from the brightest QSO in MQN01. The morphology and spectrum are consis","authors_text":"Andrea Travascio, Antonio Pensabene, Enrico Piconcelli, Fabio Vito, Gabriele Pezzulli, Giada Quadri, Giuseppina Fabbiano, Luca Di Mascolo, Luca Zappacosta, Marika Lepore, Marta Galbiati, Martin Elvis, Michela Esposito, Nicholas Ledos, Paolo Tozzi, Riccardo Middei, Sebastiano Cantalupo, Stefano Borgani, Titouan Lazeyras, Weichen Wang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2025-08-27T17:40:41Z","title":"X-ray view of a massive node of the Cosmic Web at z=3 II. Discovery of extended X-ray emission around a hyperluminous QSO"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2508.20074","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:2ed7e33219c2fb50a397b26abb8a574a5b29c8dbfd8f2dbb1afdce909ecac352","target":"record","created_at":"2026-07-05T12:00:23Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"4b67aa7f4377b8b27860d4d752a00f56fa84bea9d451e6964daac0baa7cc3176","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2025-08-27T17:40:41Z","title_canon_sha256":"6156dc2167b713dfd97ae53a0a678a2a3a0f15300c16f4a5fee7baeda9cb14f7"},"schema_version":"1.0","source":{"id":"2508.20074","kind":"arxiv","version":1}},"canonical_sha256":"121ea635789cf7053c963cd544ec1fab48662f50965154c21abdaecbe0c55fc9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"121ea635789cf7053c963cd544ec1fab48662f50965154c21abdaecbe0c55fc9","first_computed_at":"2026-07-05T12:00:23.865673Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T12:00:23.865673Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"LLHb0BUxDWfrQ92zP1/TVzKTSKcEac0PcxBUmwr4atVUK4Q31M4fRIGTqwqm915XRJEbwEQlzJFHD1gH1VoHCg==","signature_status":"signed_v1","signed_at":"2026-07-05T12:00:23.866182Z","signed_message":"canonical_sha256_bytes"},"source_id":"2508.20074","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2ed7e33219c2fb50a397b26abb8a574a5b29c8dbfd8f2dbb1afdce909ecac352","sha256:f21e6e7630523b90fb74d3561d537bb0eed2bf45f05f43893f4b1eb5d733258d"],"state_sha256":"dbae664e0e5616fefdd2c2f90b032fb4ac1b77b8cebfae8365dd9dc7854c6424"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Af1DOLEKFKga8VBOM3JbK0XOZ/orjmlIT8CM4bnpDaWEoUjouveANdDEsCntyxdhkjflDPzPDmMEsygkMwKHDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-09T06:54:51.336486Z","bundle_sha256":"1d9e3c6ecc6a4d068b682c7926b45cae033dfc17286cece5d2ced729feccc951"}}