{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:ADIMBIIBT4CWX5CNDLOIFTEE4O","short_pith_number":"pith:ADIMBIIB","canonical_record":{"source":{"id":"1709.06350","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2017-09-19T11:20:30Z","cross_cats_sorted":[],"title_canon_sha256":"2a44a4b064d80321f6f6aaababb9a326eb9627c5e63950f6320f4e1d92d90258","abstract_canon_sha256":"2a81dddb9245ba5887afa21743595e2584e8b0613d3a17d79607193ceb137558"},"schema_version":"1.0"},"canonical_sha256":"00d0c0a1019f056bf44d1adc82cc84e39f23b6ea9845dfbbf65c62b1e638d232","source":{"kind":"arxiv","id":"1709.06350","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1709.06350","created_at":"2026-05-18T00:25:45Z"},{"alias_kind":"arxiv_version","alias_value":"1709.06350v2","created_at":"2026-05-18T00:25:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1709.06350","created_at":"2026-05-18T00:25:45Z"},{"alias_kind":"pith_short_12","alias_value":"ADIMBIIBT4CW","created_at":"2026-05-18T12:31:05Z"},{"alias_kind":"pith_short_16","alias_value":"ADIMBIIBT4CWX5CN","created_at":"2026-05-18T12:31:05Z"},{"alias_kind":"pith_short_8","alias_value":"ADIMBIIB","created_at":"2026-05-18T12:31:05Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:ADIMBIIBT4CWX5CNDLOIFTEE4O","target":"record","payload":{"canonical_record":{"source":{"id":"1709.06350","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2017-09-19T11:20:30Z","cross_cats_sorted":[],"title_canon_sha256":"2a44a4b064d80321f6f6aaababb9a326eb9627c5e63950f6320f4e1d92d90258","abstract_canon_sha256":"2a81dddb9245ba5887afa21743595e2584e8b0613d3a17d79607193ceb137558"},"schema_version":"1.0"},"canonical_sha256":"00d0c0a1019f056bf44d1adc82cc84e39f23b6ea9845dfbbf65c62b1e638d232","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:25:45.140655Z","signature_b64":"/4SE5xjUabl4F3aAiCIWBQk1v/TMF9UzI/7huo/3Vm+KRhzoqJ+sxU7HE5ZIvLPnrDMUs0Q5DHd0/Zrfsi1xAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"00d0c0a1019f056bf44d1adc82cc84e39f23b6ea9845dfbbf65c62b1e638d232","last_reissued_at":"2026-05-18T00:25:45.140148Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:25:45.140148Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1709.06350","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":"2026-05-18T00:25:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HwkQQFEgOMrpk/Lwtwt+6WlZmLglTvZ6IRUHSBcZ5UP4hMmHyRqg24MEyLdnKaRWTtfDH/8EKVK88FbrHjc+AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T14:23:29.223731Z"},"content_sha256":"72aa4d08257528d74213458cff4c53e0ae5aa8674f2648bbab6cff5ccf444b3c","schema_version":"1.0","event_id":"sha256:72aa4d08257528d74213458cff4c53e0ae5aa8674f2648bbab6cff5ccf444b3c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:ADIMBIIBT4CWX5CNDLOIFTEE4O","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"New method for initial density reconstruction","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Baojiu Li (ICC, Durham), ICC, Marius Cautun (ICC, Yanlong Shi (USTC","submitted_at":"2017-09-19T11:20:30Z","abstract_excerpt":"A theoretically interesting and practically important question in cosmology is the reconstruction of the initial density distribution provided a late-time density field. This is a long-standing question with a revived interest recently, especially in the context of optimally extracting the baryonic acoustic oscillation (BAO) signals from observed galaxy distributions. We present a new efficient method to carry out this reconstruction, which is based on numerical solutions to the nonlinear partial differential equation that governs the mapping between the initial Lagrangian and final Eulerian c"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1709.06350","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":"2026-05-18T00:25:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QR0mIvJpq6glZXOIMkd4kGW6cD9kK41jlYy3SK4CoXjnxbp3oAPd5VyPF38L+MopN5DRtqvjnUiDCGJAdcinDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T14:23:29.224445Z"},"content_sha256":"2c78d337e4d7c560a25922bcd0ddbe2087f2e73c39f3ac6ec438693f29c15398","schema_version":"1.0","event_id":"sha256:2c78d337e4d7c560a25922bcd0ddbe2087f2e73c39f3ac6ec438693f29c15398"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ADIMBIIBT4CWX5CNDLOIFTEE4O/bundle.json","state_url":"https://pith.science/pith/ADIMBIIBT4CWX5CNDLOIFTEE4O/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ADIMBIIBT4CWX5CNDLOIFTEE4O/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":"2026-05-25T14:23:29Z","links":{"resolver":"https://pith.science/pith/ADIMBIIBT4CWX5CNDLOIFTEE4O","bundle":"https://pith.science/pith/ADIMBIIBT4CWX5CNDLOIFTEE4O/bundle.json","state":"https://pith.science/pith/ADIMBIIBT4CWX5CNDLOIFTEE4O/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ADIMBIIBT4CWX5CNDLOIFTEE4O/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:ADIMBIIBT4CWX5CNDLOIFTEE4O","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":"2a81dddb9245ba5887afa21743595e2584e8b0613d3a17d79607193ceb137558","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2017-09-19T11:20:30Z","title_canon_sha256":"2a44a4b064d80321f6f6aaababb9a326eb9627c5e63950f6320f4e1d92d90258"},"schema_version":"1.0","source":{"id":"1709.06350","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1709.06350","created_at":"2026-05-18T00:25:45Z"},{"alias_kind":"arxiv_version","alias_value":"1709.06350v2","created_at":"2026-05-18T00:25:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1709.06350","created_at":"2026-05-18T00:25:45Z"},{"alias_kind":"pith_short_12","alias_value":"ADIMBIIBT4CW","created_at":"2026-05-18T12:31:05Z"},{"alias_kind":"pith_short_16","alias_value":"ADIMBIIBT4CWX5CN","created_at":"2026-05-18T12:31:05Z"},{"alias_kind":"pith_short_8","alias_value":"ADIMBIIB","created_at":"2026-05-18T12:31:05Z"}],"graph_snapshots":[{"event_id":"sha256:2c78d337e4d7c560a25922bcd0ddbe2087f2e73c39f3ac6ec438693f29c15398","target":"graph","created_at":"2026-05-18T00:25:45Z","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":"A theoretically interesting and practically important question in cosmology is the reconstruction of the initial density distribution provided a late-time density field. This is a long-standing question with a revived interest recently, especially in the context of optimally extracting the baryonic acoustic oscillation (BAO) signals from observed galaxy distributions. We present a new efficient method to carry out this reconstruction, which is based on numerical solutions to the nonlinear partial differential equation that governs the mapping between the initial Lagrangian and final Eulerian c","authors_text":"Baojiu Li (ICC, Durham), ICC, Marius Cautun (ICC, Yanlong Shi (USTC","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2017-09-19T11:20:30Z","title":"New method for initial density reconstruction"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1709.06350","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":"sha256:72aa4d08257528d74213458cff4c53e0ae5aa8674f2648bbab6cff5ccf444b3c","target":"record","created_at":"2026-05-18T00:25:45Z","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":"2a81dddb9245ba5887afa21743595e2584e8b0613d3a17d79607193ceb137558","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2017-09-19T11:20:30Z","title_canon_sha256":"2a44a4b064d80321f6f6aaababb9a326eb9627c5e63950f6320f4e1d92d90258"},"schema_version":"1.0","source":{"id":"1709.06350","kind":"arxiv","version":2}},"canonical_sha256":"00d0c0a1019f056bf44d1adc82cc84e39f23b6ea9845dfbbf65c62b1e638d232","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"00d0c0a1019f056bf44d1adc82cc84e39f23b6ea9845dfbbf65c62b1e638d232","first_computed_at":"2026-05-18T00:25:45.140148Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:25:45.140148Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"/4SE5xjUabl4F3aAiCIWBQk1v/TMF9UzI/7huo/3Vm+KRhzoqJ+sxU7HE5ZIvLPnrDMUs0Q5DHd0/Zrfsi1xAw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:25:45.140655Z","signed_message":"canonical_sha256_bytes"},"source_id":"1709.06350","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:72aa4d08257528d74213458cff4c53e0ae5aa8674f2648bbab6cff5ccf444b3c","sha256:2c78d337e4d7c560a25922bcd0ddbe2087f2e73c39f3ac6ec438693f29c15398"],"state_sha256":"44cedbca970eb1a2ceecaf49a654bbc7777581132774aa7856e7c13948250f1a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7DS9bmQZ8rdgc9SIp29TQghx96X4qJtgUTRR3h0d7Ba8EKGL22y9g+uoKfgnrSBAS6hlQdsnJVlGA91wRy72AQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T14:23:29.228013Z","bundle_sha256":"1a02ecc6e448c926c921454ac0dbf186cab06b34fd8c167105737104b460128e"}}