{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:ZZNNKMJVXO7C7XSUU5ATYKHFKX","short_pith_number":"pith:ZZNNKMJV","canonical_record":{"source":{"id":"2606.31917","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2026-06-30T16:22:33Z","cross_cats_sorted":["astro-ph.IM"],"title_canon_sha256":"75c15bf459450121e77cb93a90e8fe50cc2ad69a81291fabebbcb125ebba2084","abstract_canon_sha256":"41592480e87f67821376eaa0f55b5a8f1797de0e804228c5b70d1508f242746a"},"schema_version":"1.0"},"canonical_sha256":"ce5ad53135bbbe2fde54a7413c28e555c44108d18cd22f0345f782b3ba3c75ec","source":{"kind":"arxiv","id":"2606.31917","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.31917","created_at":"2026-07-01T01:18:19Z"},{"alias_kind":"arxiv_version","alias_value":"2606.31917v1","created_at":"2026-07-01T01:18:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.31917","created_at":"2026-07-01T01:18:19Z"},{"alias_kind":"pith_short_12","alias_value":"ZZNNKMJVXO7C","created_at":"2026-07-01T01:18:19Z"},{"alias_kind":"pith_short_16","alias_value":"ZZNNKMJVXO7C7XSU","created_at":"2026-07-01T01:18:19Z"},{"alias_kind":"pith_short_8","alias_value":"ZZNNKMJV","created_at":"2026-07-01T01:18:19Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:ZZNNKMJVXO7C7XSUU5ATYKHFKX","target":"record","payload":{"canonical_record":{"source":{"id":"2606.31917","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2026-06-30T16:22:33Z","cross_cats_sorted":["astro-ph.IM"],"title_canon_sha256":"75c15bf459450121e77cb93a90e8fe50cc2ad69a81291fabebbcb125ebba2084","abstract_canon_sha256":"41592480e87f67821376eaa0f55b5a8f1797de0e804228c5b70d1508f242746a"},"schema_version":"1.0"},"canonical_sha256":"ce5ad53135bbbe2fde54a7413c28e555c44108d18cd22f0345f782b3ba3c75ec","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-01T01:18:19.503652Z","signature_b64":"hnRZ7d7AucJaouGU0g7c0Ayq3L7ney8RCPfReowAR5UiLb8+20nFxobw2bfcZvxFL/Vf0u/Y6mhH1SEMlPc7Bg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ce5ad53135bbbe2fde54a7413c28e555c44108d18cd22f0345f782b3ba3c75ec","last_reissued_at":"2026-07-01T01:18:19.503151Z","signature_status":"signed_v1","first_computed_at":"2026-07-01T01:18:19.503151Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2606.31917","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":"2026-07-01T01:18:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ILtotPFcJ0b3MZaR3YwxHnF2qhBarJ7NmqiWUFtUJw3IGwBlxoHka2yO4c74sc8egp6T4lQzkjuqfYbH4sylAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-01T22:50:03.159003Z"},"content_sha256":"3c2d047dfde608880f6503eca824245817ec9c8dee8e75e39cedc437782f3bc4","schema_version":"1.0","event_id":"sha256:3c2d047dfde608880f6503eca824245817ec9c8dee8e75e39cedc437782f3bc4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:ZZNNKMJVXO7C7XSUU5ATYKHFKX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Unveiling the Cosmic Dawn with SHARP: Probing extended Lyman-$\\alpha$ nebulae in a Universe less than 600 Myr old","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.IM"],"primary_cat":"astro-ph.GA","authors_text":"Adriana Gargiulo, Andrea Travascio, Chiara Mancini, Enrico Piconcelli, Federica Ricci, Giustina Vietri, Paolo Franzetti, Susanna Bisogni","submitted_at":"2026-06-30T16:22:33Z","abstract_excerpt":"The existence of luminous quasars just a few hundred million years after the Big Bang challenges our understanding of both black hole growth and galaxy formation and evolution. These objects harbour supermassive black holes exceeding a billion solar masses (M$_{BH} > 10^{9} M_{\\odot}$) by redshift $z\\sim 6.5$-$7.5$, powered by extreme gas accretion. At the same time, their host galaxies are also undergoing intense star formation, consuming gas at the rate of hundreds of solar masses per year. Characterising the circumgalactic medium (CGM) and intergalactic medium (IGM) surrounding high-redshif"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.31917","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/2606.31917/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":"2026-07-01T01:18:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cGvHRq6i2HflTfAab126h6+FqPuoFeYaGxt2Mzk/vo6QXpUstvGL0LsmMF1gelEmGJXsHfIi3nBRc4aeHlqiCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-01T22:50:03.159408Z"},"content_sha256":"849cfc11b711f93f4e418d69c1b6899758996b51ed9dabd74dc44d032363a2e3","schema_version":"1.0","event_id":"sha256:849cfc11b711f93f4e418d69c1b6899758996b51ed9dabd74dc44d032363a2e3"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ZZNNKMJVXO7C7XSUU5ATYKHFKX/bundle.json","state_url":"https://pith.science/pith/ZZNNKMJVXO7C7XSUU5ATYKHFKX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ZZNNKMJVXO7C7XSUU5ATYKHFKX/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":"2026-07-01T22:50:03Z","links":{"resolver":"https://pith.science/pith/ZZNNKMJVXO7C7XSUU5ATYKHFKX","bundle":"https://pith.science/pith/ZZNNKMJVXO7C7XSUU5ATYKHFKX/bundle.json","state":"https://pith.science/pith/ZZNNKMJVXO7C7XSUU5ATYKHFKX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ZZNNKMJVXO7C7XSUU5ATYKHFKX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:ZZNNKMJVXO7C7XSUU5ATYKHFKX","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":"41592480e87f67821376eaa0f55b5a8f1797de0e804228c5b70d1508f242746a","cross_cats_sorted":["astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2026-06-30T16:22:33Z","title_canon_sha256":"75c15bf459450121e77cb93a90e8fe50cc2ad69a81291fabebbcb125ebba2084"},"schema_version":"1.0","source":{"id":"2606.31917","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.31917","created_at":"2026-07-01T01:18:19Z"},{"alias_kind":"arxiv_version","alias_value":"2606.31917v1","created_at":"2026-07-01T01:18:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.31917","created_at":"2026-07-01T01:18:19Z"},{"alias_kind":"pith_short_12","alias_value":"ZZNNKMJVXO7C","created_at":"2026-07-01T01:18:19Z"},{"alias_kind":"pith_short_16","alias_value":"ZZNNKMJVXO7C7XSU","created_at":"2026-07-01T01:18:19Z"},{"alias_kind":"pith_short_8","alias_value":"ZZNNKMJV","created_at":"2026-07-01T01:18:19Z"}],"graph_snapshots":[{"event_id":"sha256:849cfc11b711f93f4e418d69c1b6899758996b51ed9dabd74dc44d032363a2e3","target":"graph","created_at":"2026-07-01T01:18:19Z","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/2606.31917/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The existence of luminous quasars just a few hundred million years after the Big Bang challenges our understanding of both black hole growth and galaxy formation and evolution. These objects harbour supermassive black holes exceeding a billion solar masses (M$_{BH} > 10^{9} M_{\\odot}$) by redshift $z\\sim 6.5$-$7.5$, powered by extreme gas accretion. At the same time, their host galaxies are also undergoing intense star formation, consuming gas at the rate of hundreds of solar masses per year. Characterising the circumgalactic medium (CGM) and intergalactic medium (IGM) surrounding high-redshif","authors_text":"Adriana Gargiulo, Andrea Travascio, Chiara Mancini, Enrico Piconcelli, Federica Ricci, Giustina Vietri, Paolo Franzetti, Susanna Bisogni","cross_cats":["astro-ph.IM"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2026-06-30T16:22:33Z","title":"Unveiling the Cosmic Dawn with SHARP: Probing extended Lyman-$\\alpha$ nebulae in a Universe less than 600 Myr old"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.31917","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":"sha256:3c2d047dfde608880f6503eca824245817ec9c8dee8e75e39cedc437782f3bc4","target":"record","created_at":"2026-07-01T01:18:19Z","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":"41592480e87f67821376eaa0f55b5a8f1797de0e804228c5b70d1508f242746a","cross_cats_sorted":["astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2026-06-30T16:22:33Z","title_canon_sha256":"75c15bf459450121e77cb93a90e8fe50cc2ad69a81291fabebbcb125ebba2084"},"schema_version":"1.0","source":{"id":"2606.31917","kind":"arxiv","version":1}},"canonical_sha256":"ce5ad53135bbbe2fde54a7413c28e555c44108d18cd22f0345f782b3ba3c75ec","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ce5ad53135bbbe2fde54a7413c28e555c44108d18cd22f0345f782b3ba3c75ec","first_computed_at":"2026-07-01T01:18:19.503151Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-01T01:18:19.503151Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"hnRZ7d7AucJaouGU0g7c0Ayq3L7ney8RCPfReowAR5UiLb8+20nFxobw2bfcZvxFL/Vf0u/Y6mhH1SEMlPc7Bg==","signature_status":"signed_v1","signed_at":"2026-07-01T01:18:19.503652Z","signed_message":"canonical_sha256_bytes"},"source_id":"2606.31917","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3c2d047dfde608880f6503eca824245817ec9c8dee8e75e39cedc437782f3bc4","sha256:849cfc11b711f93f4e418d69c1b6899758996b51ed9dabd74dc44d032363a2e3"],"state_sha256":"903f6e9920b2763619f128218fd3e4e222f6e62fff85eb28e28efe3727ab555d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nChLdjf1Q+H7F+RWqiAPewwgNcNnf34PCxgyK0d656zu0QHTwIww4QBCQP1upP+8ubzSvz24uvYGUaaycXkADg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-01T22:50:03.161845Z","bundle_sha256":"971588ec639838ab0e6cfb9a3a2442d13981b262c1127b7b4a8b8f7fe406502e"}}