{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:GINOQ5TUCUDRSN6VBMLBRYGDMA","short_pith_number":"pith:GINOQ5TU","canonical_record":{"source":{"id":"2108.01164","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2021-08-02T20:44:29Z","cross_cats_sorted":["astro-ph.HE","physics.comp-ph"],"title_canon_sha256":"03f1128b81c4bafb511331a93fe1a9922c78f4821a86044fd3e8e5cb521f2d72","abstract_canon_sha256":"9b9cf70aaabcbfb8ac583d082876250da004dde60b71628edb58b7af29bf2e2f"},"schema_version":"1.0"},"canonical_sha256":"321ae8767415071937d50b1618e0c360012c4024da6dda5020af95884e85967e","source":{"kind":"arxiv","id":"2108.01164","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2108.01164","created_at":"2026-07-05T03:03:00Z"},{"alias_kind":"arxiv_version","alias_value":"2108.01164v1","created_at":"2026-07-05T03:03:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2108.01164","created_at":"2026-07-05T03:03:00Z"},{"alias_kind":"pith_short_12","alias_value":"GINOQ5TUCUDR","created_at":"2026-07-05T03:03:00Z"},{"alias_kind":"pith_short_16","alias_value":"GINOQ5TUCUDRSN6V","created_at":"2026-07-05T03:03:00Z"},{"alias_kind":"pith_short_8","alias_value":"GINOQ5TU","created_at":"2026-07-05T03:03:00Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:GINOQ5TUCUDRSN6VBMLBRYGDMA","target":"record","payload":{"canonical_record":{"source":{"id":"2108.01164","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2021-08-02T20:44:29Z","cross_cats_sorted":["astro-ph.HE","physics.comp-ph"],"title_canon_sha256":"03f1128b81c4bafb511331a93fe1a9922c78f4821a86044fd3e8e5cb521f2d72","abstract_canon_sha256":"9b9cf70aaabcbfb8ac583d082876250da004dde60b71628edb58b7af29bf2e2f"},"schema_version":"1.0"},"canonical_sha256":"321ae8767415071937d50b1618e0c360012c4024da6dda5020af95884e85967e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:03:00.012287Z","signature_b64":"A+EXSRs81qVIYFgmZM0pH/9QtS/TgfEMgaFhGrVfq/8OC6Dcxj+Q8a/L31SIrOLfMVssEqjUCOaVantLyEIpBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"321ae8767415071937d50b1618e0c360012c4024da6dda5020af95884e85967e","last_reissued_at":"2026-07-05T03:03:00.011866Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:03:00.011866Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2108.01164","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":"2026-07-05T03:03:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FgfEpiMn1IHBw8s0pveHBQBzYrY1b7yKhXlBK0zDj/M6kCNx2ovCJZy4xaxQ8noiFw9jmkusUbALtRT64U3VAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T18:42:52.846826Z"},"content_sha256":"ae9eb8301eeec059784551c959155a04e8818289f8adf6e8225f85ec7b907194","schema_version":"1.0","event_id":"sha256:ae9eb8301eeec059784551c959155a04e8818289f8adf6e8225f85ec7b907194"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:GINOQ5TUCUDRSN6VBMLBRYGDMA","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Generalisation of the Menegozzi & Lamb Maser Algorithm to the Transient Superradiance Regime","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.HE","physics.comp-ph"],"primary_cat":"astro-ph.IM","authors_text":"4), B. Lankhaar (2), C. M. Wyenberg (1), F. Rajabi (3, M. A. Chama (1), M. Houde (1)","submitted_at":"2021-08-02T20:44:29Z","abstract_excerpt":"We investigate the application of the conventional quasi-steady state maser modelling algorithm of Menegozzi & Lamb (ML) to the high field transient regime of the one-dimensional Maxwell-Bloch (MB) equations for a velocity distribution of atoms or molecules. We quantify the performance of a first order perturbation approximation available within the ML framework when modelling regions of increasing electric field strength, and we show that the ML algorithm is unable to accurately describe the key transient features of R. H. Dicke's superradiance (SR). We extend the existing approximation to on"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2108.01164","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2108.01164/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":"2026-07-05T03:03:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1kiYnPSesZ+T1+UJcp0KduoJUe9GkrGfCPbNIH3oA6n2AtaXGoZhpLhZ83z8pweMh19HgwMPhe3uTyISLkr/Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T18:42:52.847717Z"},"content_sha256":"e208bd65cfdc2715687e09f1eb4f1e960ecdf6c54421846fb78a59909fe2b7d0","schema_version":"1.0","event_id":"sha256:e208bd65cfdc2715687e09f1eb4f1e960ecdf6c54421846fb78a59909fe2b7d0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/GINOQ5TUCUDRSN6VBMLBRYGDMA/bundle.json","state_url":"https://pith.science/pith/GINOQ5TUCUDRSN6VBMLBRYGDMA/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/GINOQ5TUCUDRSN6VBMLBRYGDMA/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":"2026-08-04T18:42:52Z","links":{"resolver":"https://pith.science/pith/GINOQ5TUCUDRSN6VBMLBRYGDMA","bundle":"https://pith.science/pith/GINOQ5TUCUDRSN6VBMLBRYGDMA/bundle.json","state":"https://pith.science/pith/GINOQ5TUCUDRSN6VBMLBRYGDMA/state.json","well_known_bundle":"https://pith.science/.well-known/pith/GINOQ5TUCUDRSN6VBMLBRYGDMA/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:GINOQ5TUCUDRSN6VBMLBRYGDMA","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":"9b9cf70aaabcbfb8ac583d082876250da004dde60b71628edb58b7af29bf2e2f","cross_cats_sorted":["astro-ph.HE","physics.comp-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2021-08-02T20:44:29Z","title_canon_sha256":"03f1128b81c4bafb511331a93fe1a9922c78f4821a86044fd3e8e5cb521f2d72"},"schema_version":"1.0","source":{"id":"2108.01164","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2108.01164","created_at":"2026-07-05T03:03:00Z"},{"alias_kind":"arxiv_version","alias_value":"2108.01164v1","created_at":"2026-07-05T03:03:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2108.01164","created_at":"2026-07-05T03:03:00Z"},{"alias_kind":"pith_short_12","alias_value":"GINOQ5TUCUDR","created_at":"2026-07-05T03:03:00Z"},{"alias_kind":"pith_short_16","alias_value":"GINOQ5TUCUDRSN6V","created_at":"2026-07-05T03:03:00Z"},{"alias_kind":"pith_short_8","alias_value":"GINOQ5TU","created_at":"2026-07-05T03:03:00Z"}],"graph_snapshots":[{"event_id":"sha256:e208bd65cfdc2715687e09f1eb4f1e960ecdf6c54421846fb78a59909fe2b7d0","target":"graph","created_at":"2026-07-05T03:03:00Z","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/2108.01164/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We investigate the application of the conventional quasi-steady state maser modelling algorithm of Menegozzi & Lamb (ML) to the high field transient regime of the one-dimensional Maxwell-Bloch (MB) equations for a velocity distribution of atoms or molecules. We quantify the performance of a first order perturbation approximation available within the ML framework when modelling regions of increasing electric field strength, and we show that the ML algorithm is unable to accurately describe the key transient features of R. H. Dicke's superradiance (SR). We extend the existing approximation to on","authors_text":"4), B. Lankhaar (2), C. M. Wyenberg (1), F. Rajabi (3, M. A. Chama (1), M. Houde (1)","cross_cats":["astro-ph.HE","physics.comp-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2021-08-02T20:44:29Z","title":"Generalisation of the Menegozzi & Lamb Maser Algorithm to the Transient Superradiance Regime"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2108.01164","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:ae9eb8301eeec059784551c959155a04e8818289f8adf6e8225f85ec7b907194","target":"record","created_at":"2026-07-05T03:03:00Z","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":"9b9cf70aaabcbfb8ac583d082876250da004dde60b71628edb58b7af29bf2e2f","cross_cats_sorted":["astro-ph.HE","physics.comp-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2021-08-02T20:44:29Z","title_canon_sha256":"03f1128b81c4bafb511331a93fe1a9922c78f4821a86044fd3e8e5cb521f2d72"},"schema_version":"1.0","source":{"id":"2108.01164","kind":"arxiv","version":1}},"canonical_sha256":"321ae8767415071937d50b1618e0c360012c4024da6dda5020af95884e85967e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"321ae8767415071937d50b1618e0c360012c4024da6dda5020af95884e85967e","first_computed_at":"2026-07-05T03:03:00.011866Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:03:00.011866Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"A+EXSRs81qVIYFgmZM0pH/9QtS/TgfEMgaFhGrVfq/8OC6Dcxj+Q8a/L31SIrOLfMVssEqjUCOaVantLyEIpBg==","signature_status":"signed_v1","signed_at":"2026-07-05T03:03:00.012287Z","signed_message":"canonical_sha256_bytes"},"source_id":"2108.01164","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ae9eb8301eeec059784551c959155a04e8818289f8adf6e8225f85ec7b907194","sha256:e208bd65cfdc2715687e09f1eb4f1e960ecdf6c54421846fb78a59909fe2b7d0"],"state_sha256":"d3d1860a45116ee945b0964f346a40059c148a800c52eb3524b8e6f00905b9fe"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2nsdpGEL1/a0jZGYbzkP/VQgaLLQX6rONI/EhlIrQwLLn7xVyMcBPMZXCSy/TyM3QZ1wuYG7K5KZdLxnF+Q5Aw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-04T18:42:52.929378Z","bundle_sha256":"e293c7fd59a6acb4eacf6cad7cc614252d6700b63fb094c33a6db416998ae06a"}}