{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:MBDUFDQXUO4K5NJZZRX3ASECRL","short_pith_number":"pith:MBDUFDQX","schema_version":"1.0","canonical_sha256":"6047428e17a3b8aeb539cc6fb048828aeed11ce6219d39af480b2bd662cab050","source":{"kind":"arxiv","id":"1803.00010","version":2},"attestation_state":"computed","paper":{"title":"Tangos: the agile numerical galaxy organization system","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.IM","authors_text":"Andrew Pontzen, Michael Tremmel","submitted_at":"2018-02-28T19:00:00Z","abstract_excerpt":"We present Tangos, a Python framework and web interface for database-driven analysis of numerical structure formation simulations. To understand the role that such a tool can play, consider constructing a history for the absolute magnitude of each galaxy within a simulation. The magnitudes must first be calculated for all halos at all timesteps and then linked using a merger tree; folding the required information into a final analysis can entail significant effort. Tangos is a generic solution to this information organization problem, aiming to free users from the details of data management. A"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1803.00010","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2018-02-28T19:00:00Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"0fa72e3ea8083438b36adb4ea4f407c8d398838fbf9dd9eaa5d83b6371184291","abstract_canon_sha256":"12bc6ae48d1899a11462627e04929001a910da5d1a351671cb9e9f6beccde307"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:08:43.192844Z","signature_b64":"Q0TaHK3vDF5zDH2UxLyP4EPTgw54NZ8dDlL3weDEOc1Puz85/3g4UUV7mNK9FSKFL9Lja+mMZom++0246ZWdAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6047428e17a3b8aeb539cc6fb048828aeed11ce6219d39af480b2bd662cab050","last_reissued_at":"2026-05-18T00:08:43.192104Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:08:43.192104Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Tangos: the agile numerical galaxy organization system","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.IM","authors_text":"Andrew Pontzen, Michael Tremmel","submitted_at":"2018-02-28T19:00:00Z","abstract_excerpt":"We present Tangos, a Python framework and web interface for database-driven analysis of numerical structure formation simulations. To understand the role that such a tool can play, consider constructing a history for the absolute magnitude of each galaxy within a simulation. The magnitudes must first be calculated for all halos at all timesteps and then linked using a merger tree; folding the required information into a final analysis can entail significant effort. Tangos is a generic solution to this information organization problem, aiming to free users from the details of data management. A"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1803.00010","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1803.00010","created_at":"2026-05-18T00:08:43.192217+00:00"},{"alias_kind":"arxiv_version","alias_value":"1803.00010v2","created_at":"2026-05-18T00:08:43.192217+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1803.00010","created_at":"2026-05-18T00:08:43.192217+00:00"},{"alias_kind":"pith_short_12","alias_value":"MBDUFDQXUO4K","created_at":"2026-05-18T12:32:37.024351+00:00"},{"alias_kind":"pith_short_16","alias_value":"MBDUFDQXUO4K5NJZ","created_at":"2026-05-18T12:32:37.024351+00:00"},{"alias_kind":"pith_short_8","alias_value":"MBDUFDQX","created_at":"2026-05-18T12:32:37.024351+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/MBDUFDQXUO4K5NJZZRX3ASECRL","json":"https://pith.science/pith/MBDUFDQXUO4K5NJZZRX3ASECRL.json","graph_json":"https://pith.science/api/pith-number/MBDUFDQXUO4K5NJZZRX3ASECRL/graph.json","events_json":"https://pith.science/api/pith-number/MBDUFDQXUO4K5NJZZRX3ASECRL/events.json","paper":"https://pith.science/paper/1803.00010"},"agent_actions":{"view_html":"https://pith.science/pith/MBDUFDQXUO4K5NJZZRX3ASECRL","download_json":"https://pith.science/pith/MBDUFDQXUO4K5NJZZRX3ASECRL.json","view_paper":"https://pith.science/paper/1803.00010","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1803.00010&json=true","fetch_graph":"https://pith.science/api/pith-number/MBDUFDQXUO4K5NJZZRX3ASECRL/graph.json","fetch_events":"https://pith.science/api/pith-number/MBDUFDQXUO4K5NJZZRX3ASECRL/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/MBDUFDQXUO4K5NJZZRX3ASECRL/action/timestamp_anchor","attest_storage":"https://pith.science/pith/MBDUFDQXUO4K5NJZZRX3ASECRL/action/storage_attestation","attest_author":"https://pith.science/pith/MBDUFDQXUO4K5NJZZRX3ASECRL/action/author_attestation","sign_citation":"https://pith.science/pith/MBDUFDQXUO4K5NJZZRX3ASECRL/action/citation_signature","submit_replication":"https://pith.science/pith/MBDUFDQXUO4K5NJZZRX3ASECRL/action/replication_record"}},"created_at":"2026-05-18T00:08:43.192217+00:00","updated_at":"2026-05-18T00:08:43.192217+00:00"}