{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:H7YZTN4JAXZZISL37KB5GQKDK5","short_pith_number":"pith:H7YZTN4J","canonical_record":{"source":{"id":"1802.01000","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.comp-ph","submitted_at":"2018-02-03T17:16:14Z","cross_cats_sorted":["physics.atom-ph","physics.data-an","physics.plasm-ph"],"title_canon_sha256":"5d2648672c9a845869a256e43616ebefcbfa1c2ac0f40de40fabfdb97265afb0","abstract_canon_sha256":"1efcc71ab6ef43345c330598289deaf738c83bedff203cb441c767a01007fa99"},"schema_version":"1.0"},"canonical_sha256":"3ff199b78905f394497bfa83d341435767ceb351c4113b7b01edaafa547a0ee5","source":{"kind":"arxiv","id":"1802.01000","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1802.01000","created_at":"2026-05-18T00:24:27Z"},{"alias_kind":"arxiv_version","alias_value":"1802.01000v1","created_at":"2026-05-18T00:24:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1802.01000","created_at":"2026-05-18T00:24:27Z"},{"alias_kind":"pith_short_12","alias_value":"H7YZTN4JAXZZ","created_at":"2026-05-18T12:32:28Z"},{"alias_kind":"pith_short_16","alias_value":"H7YZTN4JAXZZISL3","created_at":"2026-05-18T12:32:28Z"},{"alias_kind":"pith_short_8","alias_value":"H7YZTN4J","created_at":"2026-05-18T12:32:28Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:H7YZTN4JAXZZISL37KB5GQKDK5","target":"record","payload":{"canonical_record":{"source":{"id":"1802.01000","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.comp-ph","submitted_at":"2018-02-03T17:16:14Z","cross_cats_sorted":["physics.atom-ph","physics.data-an","physics.plasm-ph"],"title_canon_sha256":"5d2648672c9a845869a256e43616ebefcbfa1c2ac0f40de40fabfdb97265afb0","abstract_canon_sha256":"1efcc71ab6ef43345c330598289deaf738c83bedff203cb441c767a01007fa99"},"schema_version":"1.0"},"canonical_sha256":"3ff199b78905f394497bfa83d341435767ceb351c4113b7b01edaafa547a0ee5","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:24:27.659970Z","signature_b64":"0FaXK4fhDdi2jmqYlj+QJuhqFOT9uzjKV7ZHC0tIT4Mymvq+Zsw/iAjrvREBn/8BDpNodCHJndSipC40VXAiAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3ff199b78905f394497bfa83d341435767ceb351c4113b7b01edaafa547a0ee5","last_reissued_at":"2026-05-18T00:24:27.659442Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:24:27.659442Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1802.01000","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:24:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AQCxoW4cmcyCyqOEO7YqkM8wBj/Q0gsW7Z9QcKVFkk9D0FvwSPCKYQcRvQXwBZ8ZJ62loLteJxPoQOMSrkPFBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T01:45:14.125931Z"},"content_sha256":"2eaeb557f1cff11a07a9aaf6f24c182ad8ad81ce547364f0f9a94a61d3703abf","schema_version":"1.0","event_id":"sha256:2eaeb557f1cff11a07a9aaf6f24c182ad8ad81ce547364f0f9a94a61d3703abf"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:H7YZTN4JAXZZISL37KB5GQKDK5","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A Software Package for Rigorously Calculating Optical Plasma Spectra and Automatically Rtrieving Plasma Properties","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.atom-ph","physics.data-an","physics.plasm-ph"],"primary_cat":"physics.comp-ph","authors_text":"Xiaofeng Tan","submitted_at":"2018-02-03T17:16:14Z","abstract_excerpt":"In this article, a software package code named OPSIAL (Optical Plasma Spectral Calculation And Parameters Retrieval) for rigorously calculating optical plasma spectra and for automatically retrieving plasma parameters is presented. OPSIAL calculates the absolute spectral radiance caused by the bound-bound transitions of elemental species in the plasma by rigorously solving the equation of radiative transfer using an ultrafast line-by-line algorithm. OPSIAL supports both the local-thermodynamic-equilibrium (LTE) or partial LTE conditions and takes account of line broadenings due to the Doppler "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1802.01000","kind":"arxiv","version":1},"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":"2026-05-18T00:24:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"eLPB/WpXhGX9V40fMFHtuSsK+LwdHZ551ps/0n0xoRY4JGQW9NBfcbMgDXRRrsfibLibeB7pQrURRntmDIqfAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T01:45:14.126493Z"},"content_sha256":"9a2ad5f769142e3a36b4ca3500208c7f240a4f0eda47be93b676c43caef5557c","schema_version":"1.0","event_id":"sha256:9a2ad5f769142e3a36b4ca3500208c7f240a4f0eda47be93b676c43caef5557c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/H7YZTN4JAXZZISL37KB5GQKDK5/bundle.json","state_url":"https://pith.science/pith/H7YZTN4JAXZZISL37KB5GQKDK5/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/H7YZTN4JAXZZISL37KB5GQKDK5/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":"2026-06-05T01:45:14Z","links":{"resolver":"https://pith.science/pith/H7YZTN4JAXZZISL37KB5GQKDK5","bundle":"https://pith.science/pith/H7YZTN4JAXZZISL37KB5GQKDK5/bundle.json","state":"https://pith.science/pith/H7YZTN4JAXZZISL37KB5GQKDK5/state.json","well_known_bundle":"https://pith.science/.well-known/pith/H7YZTN4JAXZZISL37KB5GQKDK5/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:H7YZTN4JAXZZISL37KB5GQKDK5","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":"1efcc71ab6ef43345c330598289deaf738c83bedff203cb441c767a01007fa99","cross_cats_sorted":["physics.atom-ph","physics.data-an","physics.plasm-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.comp-ph","submitted_at":"2018-02-03T17:16:14Z","title_canon_sha256":"5d2648672c9a845869a256e43616ebefcbfa1c2ac0f40de40fabfdb97265afb0"},"schema_version":"1.0","source":{"id":"1802.01000","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1802.01000","created_at":"2026-05-18T00:24:27Z"},{"alias_kind":"arxiv_version","alias_value":"1802.01000v1","created_at":"2026-05-18T00:24:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1802.01000","created_at":"2026-05-18T00:24:27Z"},{"alias_kind":"pith_short_12","alias_value":"H7YZTN4JAXZZ","created_at":"2026-05-18T12:32:28Z"},{"alias_kind":"pith_short_16","alias_value":"H7YZTN4JAXZZISL3","created_at":"2026-05-18T12:32:28Z"},{"alias_kind":"pith_short_8","alias_value":"H7YZTN4J","created_at":"2026-05-18T12:32:28Z"}],"graph_snapshots":[{"event_id":"sha256:9a2ad5f769142e3a36b4ca3500208c7f240a4f0eda47be93b676c43caef5557c","target":"graph","created_at":"2026-05-18T00:24:27Z","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":"In this article, a software package code named OPSIAL (Optical Plasma Spectral Calculation And Parameters Retrieval) for rigorously calculating optical plasma spectra and for automatically retrieving plasma parameters is presented. OPSIAL calculates the absolute spectral radiance caused by the bound-bound transitions of elemental species in the plasma by rigorously solving the equation of radiative transfer using an ultrafast line-by-line algorithm. OPSIAL supports both the local-thermodynamic-equilibrium (LTE) or partial LTE conditions and takes account of line broadenings due to the Doppler ","authors_text":"Xiaofeng Tan","cross_cats":["physics.atom-ph","physics.data-an","physics.plasm-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.comp-ph","submitted_at":"2018-02-03T17:16:14Z","title":"A Software Package for Rigorously Calculating Optical Plasma Spectra and Automatically Rtrieving Plasma Properties"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1802.01000","kind":"arxiv","version":1},"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":"sha256:2eaeb557f1cff11a07a9aaf6f24c182ad8ad81ce547364f0f9a94a61d3703abf","target":"record","created_at":"2026-05-18T00:24:27Z","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":"1efcc71ab6ef43345c330598289deaf738c83bedff203cb441c767a01007fa99","cross_cats_sorted":["physics.atom-ph","physics.data-an","physics.plasm-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.comp-ph","submitted_at":"2018-02-03T17:16:14Z","title_canon_sha256":"5d2648672c9a845869a256e43616ebefcbfa1c2ac0f40de40fabfdb97265afb0"},"schema_version":"1.0","source":{"id":"1802.01000","kind":"arxiv","version":1}},"canonical_sha256":"3ff199b78905f394497bfa83d341435767ceb351c4113b7b01edaafa547a0ee5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3ff199b78905f394497bfa83d341435767ceb351c4113b7b01edaafa547a0ee5","first_computed_at":"2026-05-18T00:24:27.659442Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:24:27.659442Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"0FaXK4fhDdi2jmqYlj+QJuhqFOT9uzjKV7ZHC0tIT4Mymvq+Zsw/iAjrvREBn/8BDpNodCHJndSipC40VXAiAA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:24:27.659970Z","signed_message":"canonical_sha256_bytes"},"source_id":"1802.01000","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2eaeb557f1cff11a07a9aaf6f24c182ad8ad81ce547364f0f9a94a61d3703abf","sha256:9a2ad5f769142e3a36b4ca3500208c7f240a4f0eda47be93b676c43caef5557c"],"state_sha256":"8972143c440fd3577ca659c72bff9ccce9fc45e6fa492e34bec55c31f7b8479e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+oYQ618bxsXfmFQIJlOptrChCrYU+hkhx/cDU0cR5dCa3EZKqayKuIDxR6KfY0dP9vt4NVoMhADjiN3pO3/cBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-05T01:45:14.129556Z","bundle_sha256":"31e17554128168f8b4a85e2f1e5a80cb98c7301c834a667b6feb4c61b326b5c0"}}