{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2007:P227VCLIWWBDCW5PYSEOOJNDP7","short_pith_number":"pith:P227VCLI","canonical_record":{"source":{"id":"0704.0187","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2007-04-02T13:31:00Z","cross_cats_sorted":[],"title_canon_sha256":"cb224ac7540fd450ead4d10c43bae743153ad207868b89a1b5782c1fa6df413c","abstract_canon_sha256":"c27d77b849ee3e8273c90c2b755448697285a08e499424754d2f74bee7ab6cd5"},"schema_version":"1.0"},"canonical_sha256":"7eb5fa8968b582315bafc488e725a37fcf10ca0380d024de91660722e1467cc1","source":{"kind":"arxiv","id":"0704.0187","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0704.0187","created_at":"2026-05-18T04:09:24Z"},{"alias_kind":"arxiv_version","alias_value":"0704.0187v2","created_at":"2026-05-18T04:09:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0704.0187","created_at":"2026-05-18T04:09:24Z"},{"alias_kind":"pith_short_12","alias_value":"P227VCLIWWBD","created_at":"2026-05-18T12:25:55Z"},{"alias_kind":"pith_short_16","alias_value":"P227VCLIWWBDCW5P","created_at":"2026-05-18T12:25:55Z"},{"alias_kind":"pith_short_8","alias_value":"P227VCLI","created_at":"2026-05-18T12:25:55Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2007:P227VCLIWWBDCW5PYSEOOJNDP7","target":"record","payload":{"canonical_record":{"source":{"id":"0704.0187","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2007-04-02T13:31:00Z","cross_cats_sorted":[],"title_canon_sha256":"cb224ac7540fd450ead4d10c43bae743153ad207868b89a1b5782c1fa6df413c","abstract_canon_sha256":"c27d77b849ee3e8273c90c2b755448697285a08e499424754d2f74bee7ab6cd5"},"schema_version":"1.0"},"canonical_sha256":"7eb5fa8968b582315bafc488e725a37fcf10ca0380d024de91660722e1467cc1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:09:24.281126Z","signature_b64":"ktsw8D2IlfPE+SQB4D9/SPfqM7AG9wiDjXPYiyzP84FoAX2qp5g4/YbeH6tNVWRr0+7rQ+Nz5EYX2lR72WWrDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7eb5fa8968b582315bafc488e725a37fcf10ca0380d024de91660722e1467cc1","last_reissued_at":"2026-05-18T04:09:24.280346Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:09:24.280346Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0704.0187","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T04:09:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"iEWnz3MsQdiCw5rxKHxOD/uTsYMlSi27GgNPvJWa0gFDPP2wNPwgLnsrXVnpBXz8jEE0luxpxs/mnywnMCFyAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T20:18:57.305682Z"},"content_sha256":"cd3f654d9135da4e117768d6634f0654f98fc0967ca17eb00a3ff81e11236e0a","schema_version":"1.0","event_id":"sha256:cd3f654d9135da4e117768d6634f0654f98fc0967ca17eb00a3ff81e11236e0a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2007:P227VCLIWWBDCW5PYSEOOJNDP7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The transverse proximity effect in spectral hardness on the line of sight towards HE 2347-4342","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"(2) Hamburger Sternwarte, 3), (3) Universit\\\"at Potsdam), A. Dall'Aglio (1) ((1) Astrophysikalisches Institut Potsdam, C. Fechner (2, G. Worseck (1), L. Wisotzki (1)","submitted_at":"2007-04-02T13:31:00Z","abstract_excerpt":"We report the discovery of 14 quasars in the vicinity of HE2347-4342, one of the two quasars whose intergalactic HeII forest has been resolved with FUSE. By analysing the HI and the HeII opacity variations separately, no transverse proximity effect is detected near three foreground quasars of HE2347-4342: QSOJ23503-4328 (z=2.282, $\\vartheta=3.59$ arcmin), QSOJ23500-4319 (z=2.302, $\\vartheta=8.77$ arcmin) and QSOJ23495-4338 (z=2.690, $\\vartheta=16.28$ arcmin). This is primarily due to line contamination and overdensities probably created by large-scale structure. By comparing the HI absorption "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0704.0187","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"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":"2026-05-18T04:09:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"oN2F+wHpQRPEnjYgueXKwQbUsw0DK5LhOw8faV5STU9yLJJTUN/b3XceywloukytCcx0vgA34TQ4WFA/Eh9NCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T20:18:57.306385Z"},"content_sha256":"b8a5b9032788e575ff2efc484b213e7dc89bbed5593a8b809710d7e73227ceea","schema_version":"1.0","event_id":"sha256:b8a5b9032788e575ff2efc484b213e7dc89bbed5593a8b809710d7e73227ceea"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/P227VCLIWWBDCW5PYSEOOJNDP7/bundle.json","state_url":"https://pith.science/pith/P227VCLIWWBDCW5PYSEOOJNDP7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/P227VCLIWWBDCW5PYSEOOJNDP7/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":"2026-05-26T20:18:57Z","links":{"resolver":"https://pith.science/pith/P227VCLIWWBDCW5PYSEOOJNDP7","bundle":"https://pith.science/pith/P227VCLIWWBDCW5PYSEOOJNDP7/bundle.json","state":"https://pith.science/pith/P227VCLIWWBDCW5PYSEOOJNDP7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/P227VCLIWWBDCW5PYSEOOJNDP7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2007:P227VCLIWWBDCW5PYSEOOJNDP7","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":"c27d77b849ee3e8273c90c2b755448697285a08e499424754d2f74bee7ab6cd5","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2007-04-02T13:31:00Z","title_canon_sha256":"cb224ac7540fd450ead4d10c43bae743153ad207868b89a1b5782c1fa6df413c"},"schema_version":"1.0","source":{"id":"0704.0187","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0704.0187","created_at":"2026-05-18T04:09:24Z"},{"alias_kind":"arxiv_version","alias_value":"0704.0187v2","created_at":"2026-05-18T04:09:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0704.0187","created_at":"2026-05-18T04:09:24Z"},{"alias_kind":"pith_short_12","alias_value":"P227VCLIWWBD","created_at":"2026-05-18T12:25:55Z"},{"alias_kind":"pith_short_16","alias_value":"P227VCLIWWBDCW5P","created_at":"2026-05-18T12:25:55Z"},{"alias_kind":"pith_short_8","alias_value":"P227VCLI","created_at":"2026-05-18T12:25:55Z"}],"graph_snapshots":[{"event_id":"sha256:b8a5b9032788e575ff2efc484b213e7dc89bbed5593a8b809710d7e73227ceea","target":"graph","created_at":"2026-05-18T04:09:24Z","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"},"paper":{"abstract_excerpt":"We report the discovery of 14 quasars in the vicinity of HE2347-4342, one of the two quasars whose intergalactic HeII forest has been resolved with FUSE. By analysing the HI and the HeII opacity variations separately, no transverse proximity effect is detected near three foreground quasars of HE2347-4342: QSOJ23503-4328 (z=2.282, $\\vartheta=3.59$ arcmin), QSOJ23500-4319 (z=2.302, $\\vartheta=8.77$ arcmin) and QSOJ23495-4338 (z=2.690, $\\vartheta=16.28$ arcmin). This is primarily due to line contamination and overdensities probably created by large-scale structure. By comparing the HI absorption ","authors_text":"(2) Hamburger Sternwarte, 3), (3) Universit\\\"at Potsdam), A. Dall'Aglio (1) ((1) Astrophysikalisches Institut Potsdam, C. Fechner (2, G. Worseck (1), L. Wisotzki (1)","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2007-04-02T13:31:00Z","title":"The transverse proximity effect in spectral hardness on the line of sight towards HE 2347-4342"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0704.0187","kind":"arxiv","version":2},"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:cd3f654d9135da4e117768d6634f0654f98fc0967ca17eb00a3ff81e11236e0a","target":"record","created_at":"2026-05-18T04:09:24Z","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":"c27d77b849ee3e8273c90c2b755448697285a08e499424754d2f74bee7ab6cd5","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2007-04-02T13:31:00Z","title_canon_sha256":"cb224ac7540fd450ead4d10c43bae743153ad207868b89a1b5782c1fa6df413c"},"schema_version":"1.0","source":{"id":"0704.0187","kind":"arxiv","version":2}},"canonical_sha256":"7eb5fa8968b582315bafc488e725a37fcf10ca0380d024de91660722e1467cc1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7eb5fa8968b582315bafc488e725a37fcf10ca0380d024de91660722e1467cc1","first_computed_at":"2026-05-18T04:09:24.280346Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:09:24.280346Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ktsw8D2IlfPE+SQB4D9/SPfqM7AG9wiDjXPYiyzP84FoAX2qp5g4/YbeH6tNVWRr0+7rQ+Nz5EYX2lR72WWrDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T04:09:24.281126Z","signed_message":"canonical_sha256_bytes"},"source_id":"0704.0187","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:cd3f654d9135da4e117768d6634f0654f98fc0967ca17eb00a3ff81e11236e0a","sha256:b8a5b9032788e575ff2efc484b213e7dc89bbed5593a8b809710d7e73227ceea"],"state_sha256":"5d141854e05e6cdd0945957f972a5c90d64d2406a3e94559218d22c5d7fa5991"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"io7dFgt34pwMppQNskmeR7f/goljvD59+EHxWY77Jt2VOztDUQmjSqVPDuTgn0seSdpkL+Y69S6fO7hnkMb9CA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T20:18:57.309881Z","bundle_sha256":"37038487db25ede31c1cc1f547d17d42a0395365587d1ce52af142b983f5c8d2"}}