{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:PKQARLSFZEPBC5UBSVGTIXXDE6","short_pith_number":"pith:PKQARLSF","canonical_record":{"source":{"id":"2008.02266","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2020-08-05T17:48:08Z","cross_cats_sorted":[],"title_canon_sha256":"216e7e17f20d29cf811a01136fcd5a61be34cb67654cc91089c1afc9dde68134","abstract_canon_sha256":"32970bcbea89f6b0cc9c88011854d5ba70835793e7265ea500629e2d8fa47ff6"},"schema_version":"1.0"},"canonical_sha256":"7aa008ae45c91e117681954d345ee3278b9a2a63608e78b17eae29223f2619d7","source":{"kind":"arxiv","id":"2008.02266","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2008.02266","created_at":"2026-07-05T01:58:11Z"},{"alias_kind":"arxiv_version","alias_value":"2008.02266v3","created_at":"2026-07-05T01:58:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2008.02266","created_at":"2026-07-05T01:58:11Z"},{"alias_kind":"pith_short_12","alias_value":"PKQARLSFZEPB","created_at":"2026-07-05T01:58:11Z"},{"alias_kind":"pith_short_16","alias_value":"PKQARLSFZEPBC5UB","created_at":"2026-07-05T01:58:11Z"},{"alias_kind":"pith_short_8","alias_value":"PKQARLSF","created_at":"2026-07-05T01:58:11Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:PKQARLSFZEPBC5UBSVGTIXXDE6","target":"record","payload":{"canonical_record":{"source":{"id":"2008.02266","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2020-08-05T17:48:08Z","cross_cats_sorted":[],"title_canon_sha256":"216e7e17f20d29cf811a01136fcd5a61be34cb67654cc91089c1afc9dde68134","abstract_canon_sha256":"32970bcbea89f6b0cc9c88011854d5ba70835793e7265ea500629e2d8fa47ff6"},"schema_version":"1.0"},"canonical_sha256":"7aa008ae45c91e117681954d345ee3278b9a2a63608e78b17eae29223f2619d7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:58:11.198391Z","signature_b64":"DMyuGubrVFzMiibuijHt7/R4tClAySggI/WJeQdxgxn+/QvsK4kDGTQUN9abKdL7G4ps7xTAIkog7+kvqls/DQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7aa008ae45c91e117681954d345ee3278b9a2a63608e78b17eae29223f2619d7","last_reissued_at":"2026-07-05T01:58:11.197938Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:58:11.197938Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2008.02266","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T01:58:11Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"epsXJitDpT8sXwFBOnd93M0BvNX5/toAiZjAfUK6iHS2ddPakm8I5yTxCRV8F8ac+jYAcw9Yszz6lT0fL6lCDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T21:07:29.441996Z"},"content_sha256":"b0ddd726f48a3220604ec2000508d0353f1d1475fed1985304be0485a8653a1d","schema_version":"1.0","event_id":"sha256:b0ddd726f48a3220604ec2000508d0353f1d1475fed1985304be0485a8653a1d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:PKQARLSFZEPBC5UBSVGTIXXDE6","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Full-sky bispectrum in redshift space for 21cm intensity maps","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Francesco Montanari, Mona Jalilvand, Rahul Kothari, Roy Maartens, Ruth Durrer","submitted_at":"2020-08-05T17:48:08Z","abstract_excerpt":"We compute the tree-level bispectrum of 21cm intensity mapping after reionisation. We work in the directly observable angular and redshift space, focusing on equal-redshift correlations and thin redshift bins, for which the lensing contribution is negligible. We demonstrate the importance of the contributions from redshift-space distortions which typically dominate the result. Taking into account the effects of telescope beams and foreground cleaning, we estimate the signal to noise and show that the bispectrum is detectable by both SKA in single-dish mode and HIRAX in interferometer mode, esp"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2008.02266","kind":"arxiv","version":3},"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/2008.02266/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":"2026-07-05T01:58:11Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"o9hkCuxf/p01dL7hIdC5Ch4837BlLZ2Ah6uL0JeVdMYtynw2HVoqZJ3lg66alL0vipB6fG7K5mJQxjhCz6BpAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T21:07:29.442507Z"},"content_sha256":"79d0c1d4c4ccb77de8d1ca0dac1448fa4aab62ebba8023d4ab5a58ca6dc07c3e","schema_version":"1.0","event_id":"sha256:79d0c1d4c4ccb77de8d1ca0dac1448fa4aab62ebba8023d4ab5a58ca6dc07c3e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/PKQARLSFZEPBC5UBSVGTIXXDE6/bundle.json","state_url":"https://pith.science/pith/PKQARLSFZEPBC5UBSVGTIXXDE6/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/PKQARLSFZEPBC5UBSVGTIXXDE6/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":"2026-08-06T21:07:29Z","links":{"resolver":"https://pith.science/pith/PKQARLSFZEPBC5UBSVGTIXXDE6","bundle":"https://pith.science/pith/PKQARLSFZEPBC5UBSVGTIXXDE6/bundle.json","state":"https://pith.science/pith/PKQARLSFZEPBC5UBSVGTIXXDE6/state.json","well_known_bundle":"https://pith.science/.well-known/pith/PKQARLSFZEPBC5UBSVGTIXXDE6/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:PKQARLSFZEPBC5UBSVGTIXXDE6","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":"32970bcbea89f6b0cc9c88011854d5ba70835793e7265ea500629e2d8fa47ff6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2020-08-05T17:48:08Z","title_canon_sha256":"216e7e17f20d29cf811a01136fcd5a61be34cb67654cc91089c1afc9dde68134"},"schema_version":"1.0","source":{"id":"2008.02266","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2008.02266","created_at":"2026-07-05T01:58:11Z"},{"alias_kind":"arxiv_version","alias_value":"2008.02266v3","created_at":"2026-07-05T01:58:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2008.02266","created_at":"2026-07-05T01:58:11Z"},{"alias_kind":"pith_short_12","alias_value":"PKQARLSFZEPB","created_at":"2026-07-05T01:58:11Z"},{"alias_kind":"pith_short_16","alias_value":"PKQARLSFZEPBC5UB","created_at":"2026-07-05T01:58:11Z"},{"alias_kind":"pith_short_8","alias_value":"PKQARLSF","created_at":"2026-07-05T01:58:11Z"}],"graph_snapshots":[{"event_id":"sha256:79d0c1d4c4ccb77de8d1ca0dac1448fa4aab62ebba8023d4ab5a58ca6dc07c3e","target":"graph","created_at":"2026-07-05T01:58:11Z","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/2008.02266/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We compute the tree-level bispectrum of 21cm intensity mapping after reionisation. We work in the directly observable angular and redshift space, focusing on equal-redshift correlations and thin redshift bins, for which the lensing contribution is negligible. We demonstrate the importance of the contributions from redshift-space distortions which typically dominate the result. Taking into account the effects of telescope beams and foreground cleaning, we estimate the signal to noise and show that the bispectrum is detectable by both SKA in single-dish mode and HIRAX in interferometer mode, esp","authors_text":"Francesco Montanari, Mona Jalilvand, Rahul Kothari, Roy Maartens, Ruth Durrer","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2020-08-05T17:48:08Z","title":"Full-sky bispectrum in redshift space for 21cm intensity maps"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2008.02266","kind":"arxiv","version":3},"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:b0ddd726f48a3220604ec2000508d0353f1d1475fed1985304be0485a8653a1d","target":"record","created_at":"2026-07-05T01:58:11Z","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":"32970bcbea89f6b0cc9c88011854d5ba70835793e7265ea500629e2d8fa47ff6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2020-08-05T17:48:08Z","title_canon_sha256":"216e7e17f20d29cf811a01136fcd5a61be34cb67654cc91089c1afc9dde68134"},"schema_version":"1.0","source":{"id":"2008.02266","kind":"arxiv","version":3}},"canonical_sha256":"7aa008ae45c91e117681954d345ee3278b9a2a63608e78b17eae29223f2619d7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7aa008ae45c91e117681954d345ee3278b9a2a63608e78b17eae29223f2619d7","first_computed_at":"2026-07-05T01:58:11.197938Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:58:11.197938Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"DMyuGubrVFzMiibuijHt7/R4tClAySggI/WJeQdxgxn+/QvsK4kDGTQUN9abKdL7G4ps7xTAIkog7+kvqls/DQ==","signature_status":"signed_v1","signed_at":"2026-07-05T01:58:11.198391Z","signed_message":"canonical_sha256_bytes"},"source_id":"2008.02266","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b0ddd726f48a3220604ec2000508d0353f1d1475fed1985304be0485a8653a1d","sha256:79d0c1d4c4ccb77de8d1ca0dac1448fa4aab62ebba8023d4ab5a58ca6dc07c3e"],"state_sha256":"118bf801521dbe02cec3a83817660a23a66336e619b07b123757148eaa6ad661"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jE7/3ohYzcrzZVOSMLLSeXq0ka6oo19f8E263eviJfGShWOjCUfML9+lBLPEoFdaF2wyCDIKDQTYCahXJHYsAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-06T21:07:29.446323Z","bundle_sha256":"7c833396063a8fc8cd65cfe1e9d0a17c4484f57590cde03156abebcf259768a8"}}