{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2002:IK7QT4ENN3OXMSFTNV555GQ7DV","short_pith_number":"pith:IK7QT4EN","canonical_record":{"source":{"id":"astro-ph/0204477","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2002-04-27T22:59:45Z","cross_cats_sorted":[],"title_canon_sha256":"a6c21b59c77aad61cc2e48db1859a60a6fff2e9c3982000748443fbdef767b44","abstract_canon_sha256":"3794ed328889ca485fd79d6899b22dcc6813a26ed1a17c002f7376ef4a4eaeb2"},"schema_version":"1.0"},"canonical_sha256":"42bf09f08d6edd7648b36d7bde9a1f1d44f617da71cd0c686d7201ff11b40038","source":{"kind":"arxiv","id":"astro-ph/0204477","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0204477","created_at":"2026-07-04T16:29:56Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0204477v1","created_at":"2026-07-04T16:29:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0204477","created_at":"2026-07-04T16:29:56Z"},{"alias_kind":"pith_short_12","alias_value":"IK7QT4ENN3OX","created_at":"2026-07-04T16:29:56Z"},{"alias_kind":"pith_short_16","alias_value":"IK7QT4ENN3OXMSFT","created_at":"2026-07-04T16:29:56Z"},{"alias_kind":"pith_short_8","alias_value":"IK7QT4EN","created_at":"2026-07-04T16:29:56Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2002:IK7QT4ENN3OXMSFTNV555GQ7DV","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0204477","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2002-04-27T22:59:45Z","cross_cats_sorted":[],"title_canon_sha256":"a6c21b59c77aad61cc2e48db1859a60a6fff2e9c3982000748443fbdef767b44","abstract_canon_sha256":"3794ed328889ca485fd79d6899b22dcc6813a26ed1a17c002f7376ef4a4eaeb2"},"schema_version":"1.0"},"canonical_sha256":"42bf09f08d6edd7648b36d7bde9a1f1d44f617da71cd0c686d7201ff11b40038","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:29:56.085067Z","signature_b64":"RRLiv049/xlmjhxmfyea+/Z+qfJAKl36UOt2VwVyqqnQPAf+L4gGNZhG+DPLEwfwN2fMS86Qau4S5fVteRwuCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"42bf09f08d6edd7648b36d7bde9a1f1d44f617da71cd0c686d7201ff11b40038","last_reissued_at":"2026-07-04T16:29:56.084661Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:29:56.084661Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0204477","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":"2026-07-04T16:29:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WgMnVaFjUbVs5XFhUtIIeKKQ0xpG8ZJe/h08+QIoHj2UAtcnvrmRMnuorTrJfgiz+yK9oNp/QHYt1zzBX2qyAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T10:03:59.234223Z"},"content_sha256":"6282a7a0be4bde62c3d6ee495b20b7d21fea5a05c1fa38e916b4411032015f0c","schema_version":"1.0","event_id":"sha256:6282a7a0be4bde62c3d6ee495b20b7d21fea5a05c1fa38e916b4411032015f0c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2002:IK7QT4ENN3OXMSFTNV555GQ7DV","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Extraordinary Late-Time Infrared Emission of Type IIn Supernovae","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"(2) Univ. of Tokyo, (3) Univ. of Notre Dame, (4) CfA, (5) Univ. of Texas), C. L. Gerardy (1), J. C. Wheeler (5) ((1) Dartmouth, K. Nomoto (2), P. Garnavich (3), P. Hoeflich (5), P. M. Challis (4), R. A. Fesen (1), R. P. Kirshner (4), S. Jha (4)","submitted_at":"2002-04-27T22:59:45Z","abstract_excerpt":"Near-Infrared (NIR) observations are presented for five Type IIn supernovae (SN 1995N, SN 1997ab, SN 1998S, SN 1999Z, and SN 1999el) that exhibit strong infrared excesses at late times (t >= 100 d). H- and K-band emission from these objects is dominated by a continuum that rises toward longer wavelengths. The data are interpreted as thermal emission from dust, probably situated in a pre-existing circumstellar nebula. The IR luminosities implied by single temperature blackbody fits are quite large,> 10^(41 - 42) erg s^-1, and the emission evolves slowly, lasting for years after maximum light. F"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0204477","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/astro-ph/0204477/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":"2026-07-04T16:29:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"StrRLwqL5krji7i1xUBKGAL+xyjPrABox/aGVlZmv+V7OtC9xoe29kXTX6FNnFaE5Sa8mc6WM4In3bgxlZqGCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T10:03:59.235024Z"},"content_sha256":"cfaf6f49b17b33141fc667c8b658ccd7ceaf73c8105144c57d8800f08cdb82f9","schema_version":"1.0","event_id":"sha256:cfaf6f49b17b33141fc667c8b658ccd7ceaf73c8105144c57d8800f08cdb82f9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IK7QT4ENN3OXMSFTNV555GQ7DV/bundle.json","state_url":"https://pith.science/pith/IK7QT4ENN3OXMSFTNV555GQ7DV/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IK7QT4ENN3OXMSFTNV555GQ7DV/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":"2026-08-06T10:03:59Z","links":{"resolver":"https://pith.science/pith/IK7QT4ENN3OXMSFTNV555GQ7DV","bundle":"https://pith.science/pith/IK7QT4ENN3OXMSFTNV555GQ7DV/bundle.json","state":"https://pith.science/pith/IK7QT4ENN3OXMSFTNV555GQ7DV/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IK7QT4ENN3OXMSFTNV555GQ7DV/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2002:IK7QT4ENN3OXMSFTNV555GQ7DV","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":"3794ed328889ca485fd79d6899b22dcc6813a26ed1a17c002f7376ef4a4eaeb2","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2002-04-27T22:59:45Z","title_canon_sha256":"a6c21b59c77aad61cc2e48db1859a60a6fff2e9c3982000748443fbdef767b44"},"schema_version":"1.0","source":{"id":"astro-ph/0204477","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0204477","created_at":"2026-07-04T16:29:56Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0204477v1","created_at":"2026-07-04T16:29:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0204477","created_at":"2026-07-04T16:29:56Z"},{"alias_kind":"pith_short_12","alias_value":"IK7QT4ENN3OX","created_at":"2026-07-04T16:29:56Z"},{"alias_kind":"pith_short_16","alias_value":"IK7QT4ENN3OXMSFT","created_at":"2026-07-04T16:29:56Z"},{"alias_kind":"pith_short_8","alias_value":"IK7QT4EN","created_at":"2026-07-04T16:29:56Z"}],"graph_snapshots":[{"event_id":"sha256:cfaf6f49b17b33141fc667c8b658ccd7ceaf73c8105144c57d8800f08cdb82f9","target":"graph","created_at":"2026-07-04T16:29:56Z","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/astro-ph/0204477/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Near-Infrared (NIR) observations are presented for five Type IIn supernovae (SN 1995N, SN 1997ab, SN 1998S, SN 1999Z, and SN 1999el) that exhibit strong infrared excesses at late times (t >= 100 d). H- and K-band emission from these objects is dominated by a continuum that rises toward longer wavelengths. The data are interpreted as thermal emission from dust, probably situated in a pre-existing circumstellar nebula. The IR luminosities implied by single temperature blackbody fits are quite large,> 10^(41 - 42) erg s^-1, and the emission evolves slowly, lasting for years after maximum light. F","authors_text":"(2) Univ. of Tokyo, (3) Univ. of Notre Dame, (4) CfA, (5) Univ. of Texas), C. L. Gerardy (1), J. C. Wheeler (5) ((1) Dartmouth, K. Nomoto (2), P. Garnavich (3), P. Hoeflich (5), P. M. Challis (4), R. A. Fesen (1), R. P. Kirshner (4), S. Jha (4)","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2002-04-27T22:59:45Z","title":"Extraordinary Late-Time Infrared Emission of Type IIn Supernovae"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0204477","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":"sha256:6282a7a0be4bde62c3d6ee495b20b7d21fea5a05c1fa38e916b4411032015f0c","target":"record","created_at":"2026-07-04T16:29:56Z","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":"3794ed328889ca485fd79d6899b22dcc6813a26ed1a17c002f7376ef4a4eaeb2","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2002-04-27T22:59:45Z","title_canon_sha256":"a6c21b59c77aad61cc2e48db1859a60a6fff2e9c3982000748443fbdef767b44"},"schema_version":"1.0","source":{"id":"astro-ph/0204477","kind":"arxiv","version":1}},"canonical_sha256":"42bf09f08d6edd7648b36d7bde9a1f1d44f617da71cd0c686d7201ff11b40038","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"42bf09f08d6edd7648b36d7bde9a1f1d44f617da71cd0c686d7201ff11b40038","first_computed_at":"2026-07-04T16:29:56.084661Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:29:56.084661Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"RRLiv049/xlmjhxmfyea+/Z+qfJAKl36UOt2VwVyqqnQPAf+L4gGNZhG+DPLEwfwN2fMS86Qau4S5fVteRwuCA==","signature_status":"signed_v1","signed_at":"2026-07-04T16:29:56.085067Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0204477","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6282a7a0be4bde62c3d6ee495b20b7d21fea5a05c1fa38e916b4411032015f0c","sha256:cfaf6f49b17b33141fc667c8b658ccd7ceaf73c8105144c57d8800f08cdb82f9"],"state_sha256":"a506acdbe11a25de62e48f76e292b52a049ee49d7ca0f4301193b8f94778f559"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KSE4q+3E8gG7Dyslrq5yGHw+EhWPZW7oMnvfRF5CY2tS8Qltu4HgEm0hOYgfWRQnUk/7trM5g2hWw95rJGFBCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-06T10:03:59.245457Z","bundle_sha256":"26added5f38e81538d1a081942d8245b742a1fb21f7c33b5084913fdbce2d943"}}