{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2007:X4HL2DGUB3IGWLJWD4X3RAIGTF","short_pith_number":"pith:X4HL2DGU","canonical_record":{"source":{"id":"0705.0981","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2007-05-07T20:07:33Z","cross_cats_sorted":[],"title_canon_sha256":"c0e16816b82150d8a6821866b4af11617993763248be7bea9c590a5c40e9049c","abstract_canon_sha256":"297939579bee560195ecc2f3658658f98f33f975b997d752cd6938c3f9767a73"},"schema_version":"1.0"},"canonical_sha256":"bf0ebd0cd40ed06b2d361f2fb881069958dfd1c594b668f6843b042abaffd22b","source":{"kind":"arxiv","id":"0705.0981","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0705.0981","created_at":"2026-07-04T17:03:46Z"},{"alias_kind":"arxiv_version","alias_value":"0705.0981v2","created_at":"2026-07-04T17:03:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0705.0981","created_at":"2026-07-04T17:03:46Z"},{"alias_kind":"pith_short_12","alias_value":"X4HL2DGUB3IG","created_at":"2026-07-04T17:03:46Z"},{"alias_kind":"pith_short_16","alias_value":"X4HL2DGUB3IGWLJW","created_at":"2026-07-04T17:03:46Z"},{"alias_kind":"pith_short_8","alias_value":"X4HL2DGU","created_at":"2026-07-04T17:03:46Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2007:X4HL2DGUB3IGWLJWD4X3RAIGTF","target":"record","payload":{"canonical_record":{"source":{"id":"0705.0981","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2007-05-07T20:07:33Z","cross_cats_sorted":[],"title_canon_sha256":"c0e16816b82150d8a6821866b4af11617993763248be7bea9c590a5c40e9049c","abstract_canon_sha256":"297939579bee560195ecc2f3658658f98f33f975b997d752cd6938c3f9767a73"},"schema_version":"1.0"},"canonical_sha256":"bf0ebd0cd40ed06b2d361f2fb881069958dfd1c594b668f6843b042abaffd22b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T17:03:46.282995Z","signature_b64":"394+MRs1i/GRdx+jGrPcqtZTgMViBxUjg38JuWQGoBQZcGQQFQqK73XTR7EKGCcrEklIrHvwfk9YNa3iCM0rCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"bf0ebd0cd40ed06b2d361f2fb881069958dfd1c594b668f6843b042abaffd22b","last_reissued_at":"2026-07-04T17:03:46.282588Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T17:03:46.282588Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0705.0981","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":"2026-07-04T17:03:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SqqyFfvmdODRRa2s97lg86BLxCmfJ3NyYMw+ChpqLA3lRXdLNSwQh12xfNqv0sdpH40m7+uwJL+TZmSnmLuoBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-16T15:36:47.478196Z"},"content_sha256":"b4a5c4ccbdae96f85f407da6668108d68f5ee9a3c068d05445c5892aa127b6b8","schema_version":"1.0","event_id":"sha256:b4a5c4ccbdae96f85f407da6668108d68f5ee9a3c068d05445c5892aa127b6b8"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2007:X4HL2DGUB3IGWLJWD4X3RAIGTF","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Can We Detect the Anisotropic Shapes of Quasar HII Regions During Reionization Through The Small-Scale Redshifted 21cm Power Spectrum?","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Shiv Sethi (Raman Research Institute), Zolt\\'an Haiman (Columbia University)","submitted_at":"2007-05-07T20:07:33Z","abstract_excerpt":"Light travel time delays distort the apparent shapes of HII regions surrounding bright quasars during early stages of cosmic reionization. Individual HII regions may remain undetectable in forthcoming redshifted 21 cm experiments. However, the systematic deformation along the line of sight may be detectable statistically, either by stacking tomographic 21cm images of quasars identified, for example, by JWST, or as small-scale anisotropy in the three-dimensional 21cm power spectrum. Here we consider the detectability of this effect. The anisotropy is largest when HII regions are large and expan"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0705.0981","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/0705.0981/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":"2026-07-04T17:03:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FMJPULIBKPNUYhm984Nw2qYVzJJAKq0z7MWPRq4HSmtZYWcPl86/SPE2tqekkfzLJTeQcmlFVqKAqd6/pTvIDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-16T15:36:47.478696Z"},"content_sha256":"24853bc05481223d66e63bdaeabd5601109a0ee1764ac256f785d8a7a82353e1","schema_version":"1.0","event_id":"sha256:24853bc05481223d66e63bdaeabd5601109a0ee1764ac256f785d8a7a82353e1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/X4HL2DGUB3IGWLJWD4X3RAIGTF/bundle.json","state_url":"https://pith.science/pith/X4HL2DGUB3IGWLJWD4X3RAIGTF/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/X4HL2DGUB3IGWLJWD4X3RAIGTF/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":"2026-08-16T15:36:47Z","links":{"resolver":"https://pith.science/pith/X4HL2DGUB3IGWLJWD4X3RAIGTF","bundle":"https://pith.science/pith/X4HL2DGUB3IGWLJWD4X3RAIGTF/bundle.json","state":"https://pith.science/pith/X4HL2DGUB3IGWLJWD4X3RAIGTF/state.json","well_known_bundle":"https://pith.science/.well-known/pith/X4HL2DGUB3IGWLJWD4X3RAIGTF/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2007:X4HL2DGUB3IGWLJWD4X3RAIGTF","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":"297939579bee560195ecc2f3658658f98f33f975b997d752cd6938c3f9767a73","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2007-05-07T20:07:33Z","title_canon_sha256":"c0e16816b82150d8a6821866b4af11617993763248be7bea9c590a5c40e9049c"},"schema_version":"1.0","source":{"id":"0705.0981","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0705.0981","created_at":"2026-07-04T17:03:46Z"},{"alias_kind":"arxiv_version","alias_value":"0705.0981v2","created_at":"2026-07-04T17:03:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0705.0981","created_at":"2026-07-04T17:03:46Z"},{"alias_kind":"pith_short_12","alias_value":"X4HL2DGUB3IG","created_at":"2026-07-04T17:03:46Z"},{"alias_kind":"pith_short_16","alias_value":"X4HL2DGUB3IGWLJW","created_at":"2026-07-04T17:03:46Z"},{"alias_kind":"pith_short_8","alias_value":"X4HL2DGU","created_at":"2026-07-04T17:03:46Z"}],"graph_snapshots":[{"event_id":"sha256:24853bc05481223d66e63bdaeabd5601109a0ee1764ac256f785d8a7a82353e1","target":"graph","created_at":"2026-07-04T17:03:46Z","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/0705.0981/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Light travel time delays distort the apparent shapes of HII regions surrounding bright quasars during early stages of cosmic reionization. Individual HII regions may remain undetectable in forthcoming redshifted 21 cm experiments. However, the systematic deformation along the line of sight may be detectable statistically, either by stacking tomographic 21cm images of quasars identified, for example, by JWST, or as small-scale anisotropy in the three-dimensional 21cm power spectrum. Here we consider the detectability of this effect. The anisotropy is largest when HII regions are large and expan","authors_text":"Shiv Sethi (Raman Research Institute), Zolt\\'an Haiman (Columbia University)","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2007-05-07T20:07:33Z","title":"Can We Detect the Anisotropic Shapes of Quasar HII Regions During Reionization Through The Small-Scale Redshifted 21cm Power Spectrum?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0705.0981","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:b4a5c4ccbdae96f85f407da6668108d68f5ee9a3c068d05445c5892aa127b6b8","target":"record","created_at":"2026-07-04T17:03:46Z","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":"297939579bee560195ecc2f3658658f98f33f975b997d752cd6938c3f9767a73","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2007-05-07T20:07:33Z","title_canon_sha256":"c0e16816b82150d8a6821866b4af11617993763248be7bea9c590a5c40e9049c"},"schema_version":"1.0","source":{"id":"0705.0981","kind":"arxiv","version":2}},"canonical_sha256":"bf0ebd0cd40ed06b2d361f2fb881069958dfd1c594b668f6843b042abaffd22b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bf0ebd0cd40ed06b2d361f2fb881069958dfd1c594b668f6843b042abaffd22b","first_computed_at":"2026-07-04T17:03:46.282588Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T17:03:46.282588Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"394+MRs1i/GRdx+jGrPcqtZTgMViBxUjg38JuWQGoBQZcGQQFQqK73XTR7EKGCcrEklIrHvwfk9YNa3iCM0rCA==","signature_status":"signed_v1","signed_at":"2026-07-04T17:03:46.282995Z","signed_message":"canonical_sha256_bytes"},"source_id":"0705.0981","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b4a5c4ccbdae96f85f407da6668108d68f5ee9a3c068d05445c5892aa127b6b8","sha256:24853bc05481223d66e63bdaeabd5601109a0ee1764ac256f785d8a7a82353e1"],"state_sha256":"a762660812f01595839624d83da24f3c2f666011a6c619beb86933514f4e9a9c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5PV6teOdz1yKLzW6/p69icXiHcuXFjjqktSVgbc7PdmMQ2XF5DgYCR9UpAJTtrRZGSh1iMpgw4C0LmVL6yUSAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-16T15:36:47.482274Z","bundle_sha256":"e9ec9a3bc42ccde8d9b7614dc997dcf2f7cf1910ace2e6999db22f59cb925263"}}