{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:PQUFH2QHKY6O5JGIZKN5UEB3IA","short_pith_number":"pith:PQUFH2QH","canonical_record":{"source":{"id":"1006.0430","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-06-02T16:01:00Z","cross_cats_sorted":[],"title_canon_sha256":"9bbb2323386055b5200dfc2ad22bb209f6c1d90678cf3481337974bce7d2410b","abstract_canon_sha256":"c723c24550165a29841a8155c3ccb8e4679dcf9007e89388f61abde496bdea3c"},"schema_version":"1.0"},"canonical_sha256":"7c2853ea07563ceea4c8ca9bda103b403c31fe31e5c0eaee797ebf2e2fcdf0a3","source":{"kind":"arxiv","id":"1006.0430","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1006.0430","created_at":"2026-05-18T02:07:05Z"},{"alias_kind":"arxiv_version","alias_value":"1006.0430v2","created_at":"2026-05-18T02:07:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1006.0430","created_at":"2026-05-18T02:07:05Z"},{"alias_kind":"pith_short_12","alias_value":"PQUFH2QHKY6O","created_at":"2026-05-18T12:26:12Z"},{"alias_kind":"pith_short_16","alias_value":"PQUFH2QHKY6O5JGI","created_at":"2026-05-18T12:26:12Z"},{"alias_kind":"pith_short_8","alias_value":"PQUFH2QH","created_at":"2026-05-18T12:26:12Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:PQUFH2QHKY6O5JGIZKN5UEB3IA","target":"record","payload":{"canonical_record":{"source":{"id":"1006.0430","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-06-02T16:01:00Z","cross_cats_sorted":[],"title_canon_sha256":"9bbb2323386055b5200dfc2ad22bb209f6c1d90678cf3481337974bce7d2410b","abstract_canon_sha256":"c723c24550165a29841a8155c3ccb8e4679dcf9007e89388f61abde496bdea3c"},"schema_version":"1.0"},"canonical_sha256":"7c2853ea07563ceea4c8ca9bda103b403c31fe31e5c0eaee797ebf2e2fcdf0a3","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:07:05.529662Z","signature_b64":"DlZL2g2+pR/dOsbvMCd63/vnLLQtdjLcVC+z1UWGMkPWBbnbGo/THsJtLHjLCCVD6VnNdTWlE1JW4+D/5Rl5AA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7c2853ea07563ceea4c8ca9bda103b403c31fe31e5c0eaee797ebf2e2fcdf0a3","last_reissued_at":"2026-05-18T02:07:05.528823Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:07:05.528823Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1006.0430","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":"2026-05-18T02:07:05Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZQpt2oR0oYU7Tm8r2KegYEiDvsI7GmDo0xw/yc5ArTdZENEP1ujcdCi9yLu732lIX1mZ/a/50Hm6Tc5+IebTDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T10:08:15.207993Z"},"content_sha256":"ec83bb4b27b67620e7b63901d81abfbc309266b8dab2f658b59bdde242e8c9e7","schema_version":"1.0","event_id":"sha256:ec83bb4b27b67620e7b63901d81abfbc309266b8dab2f658b59bdde242e8c9e7"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:PQUFH2QHKY6O5JGIZKN5UEB3IA","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The impact of anisotropy from finite light travel time on detecting ionized bubbles in redshifted 21-cm maps","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Kanan K. Datta, Somnath Bharadwaj, Suman Majumdar, T. Roy Choudhury","submitted_at":"2010-06-02T16:01:00Z","abstract_excerpt":"The detection of ionized bubbles around quasars in redshifted 21-cm maps is possibly one of the most direct future probes of reionization. We consider two models for the growth of spherical ionized bubbles to study the apparent shapes of the bubbles in redshifted 21-cm maps, taking into account the finite light travel time (FLTT) across the bubble. We find that the FLTT, whose effect is particularly pronounced for large bubbles, causes the bubble's image to continue to grow well after it's actual growth is over. There are two distinct FLTT distortions in the bubble's image: (i) its apparent ce"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1006.0430","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":"2026-05-18T02:07:05Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xGw2gIT0GFu+YOs5pvWCTr8STYjTuIIFsnx4UT/27QG0rGeTr3jDy31GrfJvSTSLX/8lUq4rwHgtPE90z3qxCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T10:08:15.208561Z"},"content_sha256":"498d08629c717dfdc116ef0cefe4e1c026dbcf9008cc0c9025f93bfd69569f62","schema_version":"1.0","event_id":"sha256:498d08629c717dfdc116ef0cefe4e1c026dbcf9008cc0c9025f93bfd69569f62"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/PQUFH2QHKY6O5JGIZKN5UEB3IA/bundle.json","state_url":"https://pith.science/pith/PQUFH2QHKY6O5JGIZKN5UEB3IA/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/PQUFH2QHKY6O5JGIZKN5UEB3IA/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":"2026-06-07T10:08:15Z","links":{"resolver":"https://pith.science/pith/PQUFH2QHKY6O5JGIZKN5UEB3IA","bundle":"https://pith.science/pith/PQUFH2QHKY6O5JGIZKN5UEB3IA/bundle.json","state":"https://pith.science/pith/PQUFH2QHKY6O5JGIZKN5UEB3IA/state.json","well_known_bundle":"https://pith.science/.well-known/pith/PQUFH2QHKY6O5JGIZKN5UEB3IA/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:PQUFH2QHKY6O5JGIZKN5UEB3IA","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":"c723c24550165a29841a8155c3ccb8e4679dcf9007e89388f61abde496bdea3c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-06-02T16:01:00Z","title_canon_sha256":"9bbb2323386055b5200dfc2ad22bb209f6c1d90678cf3481337974bce7d2410b"},"schema_version":"1.0","source":{"id":"1006.0430","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1006.0430","created_at":"2026-05-18T02:07:05Z"},{"alias_kind":"arxiv_version","alias_value":"1006.0430v2","created_at":"2026-05-18T02:07:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1006.0430","created_at":"2026-05-18T02:07:05Z"},{"alias_kind":"pith_short_12","alias_value":"PQUFH2QHKY6O","created_at":"2026-05-18T12:26:12Z"},{"alias_kind":"pith_short_16","alias_value":"PQUFH2QHKY6O5JGI","created_at":"2026-05-18T12:26:12Z"},{"alias_kind":"pith_short_8","alias_value":"PQUFH2QH","created_at":"2026-05-18T12:26:12Z"}],"graph_snapshots":[{"event_id":"sha256:498d08629c717dfdc116ef0cefe4e1c026dbcf9008cc0c9025f93bfd69569f62","target":"graph","created_at":"2026-05-18T02:07:05Z","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":"The detection of ionized bubbles around quasars in redshifted 21-cm maps is possibly one of the most direct future probes of reionization. We consider two models for the growth of spherical ionized bubbles to study the apparent shapes of the bubbles in redshifted 21-cm maps, taking into account the finite light travel time (FLTT) across the bubble. We find that the FLTT, whose effect is particularly pronounced for large bubbles, causes the bubble's image to continue to grow well after it's actual growth is over. There are two distinct FLTT distortions in the bubble's image: (i) its apparent ce","authors_text":"Kanan K. Datta, Somnath Bharadwaj, Suman Majumdar, T. Roy Choudhury","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-06-02T16:01:00Z","title":"The impact of anisotropy from finite light travel time on detecting ionized bubbles in redshifted 21-cm maps"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1006.0430","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:ec83bb4b27b67620e7b63901d81abfbc309266b8dab2f658b59bdde242e8c9e7","target":"record","created_at":"2026-05-18T02:07:05Z","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":"c723c24550165a29841a8155c3ccb8e4679dcf9007e89388f61abde496bdea3c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-06-02T16:01:00Z","title_canon_sha256":"9bbb2323386055b5200dfc2ad22bb209f6c1d90678cf3481337974bce7d2410b"},"schema_version":"1.0","source":{"id":"1006.0430","kind":"arxiv","version":2}},"canonical_sha256":"7c2853ea07563ceea4c8ca9bda103b403c31fe31e5c0eaee797ebf2e2fcdf0a3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7c2853ea07563ceea4c8ca9bda103b403c31fe31e5c0eaee797ebf2e2fcdf0a3","first_computed_at":"2026-05-18T02:07:05.528823Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:07:05.528823Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"DlZL2g2+pR/dOsbvMCd63/vnLLQtdjLcVC+z1UWGMkPWBbnbGo/THsJtLHjLCCVD6VnNdTWlE1JW4+D/5Rl5AA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:07:05.529662Z","signed_message":"canonical_sha256_bytes"},"source_id":"1006.0430","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ec83bb4b27b67620e7b63901d81abfbc309266b8dab2f658b59bdde242e8c9e7","sha256:498d08629c717dfdc116ef0cefe4e1c026dbcf9008cc0c9025f93bfd69569f62"],"state_sha256":"e7dcdca092c503ac78c0eb616390a00d4017c7d6ec3248794ba518f5b24d9948"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"In/HUVVHr7tB69wRgPdpBDShmHJZPfzmGjiScFA0dRP+LE3yHKZDmjsXrWknrckKgYrBBXMc/830SaGTpUkQBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-07T10:08:15.211449Z","bundle_sha256":"7f0c719d09105f965ad4dd4733f534b2f00a6316a9f2f48b3f9c01161f6dd0d8"}}