{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2016:DC4HDFCYV6G7HBFCNJUJDDGOIX","short_pith_number":"pith:DC4HDFCY","schema_version":"1.0","canonical_sha256":"18b8719458af8df384a26a68918cce45e88d883f774fcaf07efda76ebf6cee80","source":{"kind":"arxiv","id":"1601.01020","version":1},"attestation_state":"computed","paper":{"title":"On the Late-Time Spectral Softening Found in X-ray Afterglows of Gamma-Ray Bursts","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"En-Wei Liang, Lang Shao, Yinan Zhao, Yuan-Zhu Wang, Zu-Jia Lu","submitted_at":"2016-01-05T23:55:13Z","abstract_excerpt":"Strong spectral softening has been revealed in the late X-ray afterglows of some gamma-ray bursts (GRBs). The scenario of X-ray scattering around circum-burst dusty medium has been supported by previous works due to its overall successful prediction of both the temporal and spectral evolution of some X-ray afterglows. To further investigate the observed feature of spectral softening, we now systematically search the X-ray afterglows detected by X-Ray Telescope (XRT) of Swift and collect twelve GRBs with significant late-time spectral softening. We find that dust scattering could be the dominan"},"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":"1601.01020","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2016-01-05T23:55:13Z","cross_cats_sorted":[],"title_canon_sha256":"bbc39ee8062691cf667196b255a6a09aa530e90339cd25222bcf76eaefccf6e4","abstract_canon_sha256":"1d83f219cc34d29492be71b703082042b6667c6d96be6812809d6ac0b5f75cda"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:19:25.232400Z","signature_b64":"bI2JDOLvA96GJuCwKkOobJnroqfhIwyTUKNqNcnUpP/v1od9JPRrlGJZLacVWZceHnk0mHK8fq4yOanTEyG6BA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"18b8719458af8df384a26a68918cce45e88d883f774fcaf07efda76ebf6cee80","last_reissued_at":"2026-05-18T01:19:25.231609Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:19:25.231609Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"On the Late-Time Spectral Softening Found in X-ray Afterglows of Gamma-Ray Bursts","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"En-Wei Liang, Lang Shao, Yinan Zhao, Yuan-Zhu Wang, Zu-Jia Lu","submitted_at":"2016-01-05T23:55:13Z","abstract_excerpt":"Strong spectral softening has been revealed in the late X-ray afterglows of some gamma-ray bursts (GRBs). The scenario of X-ray scattering around circum-burst dusty medium has been supported by previous works due to its overall successful prediction of both the temporal and spectral evolution of some X-ray afterglows. To further investigate the observed feature of spectral softening, we now systematically search the X-ray afterglows detected by X-Ray Telescope (XRT) of Swift and collect twelve GRBs with significant late-time spectral softening. We find that dust scattering could be the dominan"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1601.01020","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1601.01020","created_at":"2026-05-18T01:19:25.231741+00:00"},{"alias_kind":"arxiv_version","alias_value":"1601.01020v1","created_at":"2026-05-18T01:19:25.231741+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1601.01020","created_at":"2026-05-18T01:19:25.231741+00:00"},{"alias_kind":"pith_short_12","alias_value":"DC4HDFCYV6G7","created_at":"2026-05-18T12:30:12.583610+00:00"},{"alias_kind":"pith_short_16","alias_value":"DC4HDFCYV6G7HBFC","created_at":"2026-05-18T12:30:12.583610+00:00"},{"alias_kind":"pith_short_8","alias_value":"DC4HDFCY","created_at":"2026-05-18T12:30:12.583610+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/DC4HDFCYV6G7HBFCNJUJDDGOIX","json":"https://pith.science/pith/DC4HDFCYV6G7HBFCNJUJDDGOIX.json","graph_json":"https://pith.science/api/pith-number/DC4HDFCYV6G7HBFCNJUJDDGOIX/graph.json","events_json":"https://pith.science/api/pith-number/DC4HDFCYV6G7HBFCNJUJDDGOIX/events.json","paper":"https://pith.science/paper/DC4HDFCY"},"agent_actions":{"view_html":"https://pith.science/pith/DC4HDFCYV6G7HBFCNJUJDDGOIX","download_json":"https://pith.science/pith/DC4HDFCYV6G7HBFCNJUJDDGOIX.json","view_paper":"https://pith.science/paper/DC4HDFCY","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1601.01020&json=true","fetch_graph":"https://pith.science/api/pith-number/DC4HDFCYV6G7HBFCNJUJDDGOIX/graph.json","fetch_events":"https://pith.science/api/pith-number/DC4HDFCYV6G7HBFCNJUJDDGOIX/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/DC4HDFCYV6G7HBFCNJUJDDGOIX/action/timestamp_anchor","attest_storage":"https://pith.science/pith/DC4HDFCYV6G7HBFCNJUJDDGOIX/action/storage_attestation","attest_author":"https://pith.science/pith/DC4HDFCYV6G7HBFCNJUJDDGOIX/action/author_attestation","sign_citation":"https://pith.science/pith/DC4HDFCYV6G7HBFCNJUJDDGOIX/action/citation_signature","submit_replication":"https://pith.science/pith/DC4HDFCYV6G7HBFCNJUJDDGOIX/action/replication_record"}},"created_at":"2026-05-18T01:19:25.231741+00:00","updated_at":"2026-05-18T01:19:25.231741+00:00"}