{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:QDZEBXPZV44JNUDDN4HGTGRJJH","short_pith_number":"pith:QDZEBXPZ","canonical_record":{"source":{"id":"1405.4867","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2014-05-19T20:00:26Z","cross_cats_sorted":[],"title_canon_sha256":"36aea1864d59dcb0e99d90671f7bc574bfe8432935d44fa69b8e46e81850707f","abstract_canon_sha256":"b13a12fe840408ce7c84abb49b0b70e9edd423f2835b6fc673e40ecfee96954c"},"schema_version":"1.0"},"canonical_sha256":"80f240ddf9af3896d0636f0e699a2949d7ec3348315a9c41d9634c4632d1d7e7","source":{"kind":"arxiv","id":"1405.4867","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1405.4867","created_at":"2026-05-18T01:17:05Z"},{"alias_kind":"arxiv_version","alias_value":"1405.4867v2","created_at":"2026-05-18T01:17:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1405.4867","created_at":"2026-05-18T01:17:05Z"},{"alias_kind":"pith_short_12","alias_value":"QDZEBXPZV44J","created_at":"2026-05-18T12:28:43Z"},{"alias_kind":"pith_short_16","alias_value":"QDZEBXPZV44JNUDD","created_at":"2026-05-18T12:28:43Z"},{"alias_kind":"pith_short_8","alias_value":"QDZEBXPZ","created_at":"2026-05-18T12:28:43Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:QDZEBXPZV44JNUDDN4HGTGRJJH","target":"record","payload":{"canonical_record":{"source":{"id":"1405.4867","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2014-05-19T20:00:26Z","cross_cats_sorted":[],"title_canon_sha256":"36aea1864d59dcb0e99d90671f7bc574bfe8432935d44fa69b8e46e81850707f","abstract_canon_sha256":"b13a12fe840408ce7c84abb49b0b70e9edd423f2835b6fc673e40ecfee96954c"},"schema_version":"1.0"},"canonical_sha256":"80f240ddf9af3896d0636f0e699a2949d7ec3348315a9c41d9634c4632d1d7e7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:17:05.699967Z","signature_b64":"WbTNHHN7EAAiUPa7AfRTRDONWuGfFosQOHpe2aMp264BH0Wsi1IXBuHJSry9OQDpyAk2ZGwYEABa7QcS5kCMBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"80f240ddf9af3896d0636f0e699a2949d7ec3348315a9c41d9634c4632d1d7e7","last_reissued_at":"2026-05-18T01:17:05.699230Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:17:05.699230Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1405.4867","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:17:05Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"x417z315q1kJEgrUyPn4XDbWafB3ifYCzYDh5n7fNz6idDXUtcf+Qc1R7MSkrBw4T+QZ5wu42AlY7WYrOMZdDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T19:37:57.019894Z"},"content_sha256":"0cce19749bb7186d09c9c1215f5379fd8822b761ea45cfe5b3ce13ab87dbf198","schema_version":"1.0","event_id":"sha256:0cce19749bb7186d09c9c1215f5379fd8822b761ea45cfe5b3ce13ab87dbf198"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:QDZEBXPZV44JNUDDN4HGTGRJJH","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"An Analysis of Chandra Deep Follow-up GRBs: Implications for Off-Axis Jets","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Andrew MacFadyen, Bin-Bin Zhang, David N. Burrows, Eleonora Troja, Geoffrey Scott Ryan, Hendrik van Eerten, Judith L. Racusin, Philip A. Evans","submitted_at":"2014-05-19T20:00:26Z","abstract_excerpt":"We present a sample of 27 GRBs with detailed Swift light curves supplemented by late time Chandra observations. To answer the missing jet-break problem in general, we develop a numerical simulation based model which can be directly fit to the data using Monte Carlo methods. Our numerical model takes into account all the factors that can shape a jet-break: (i) lateral expansion (ii) edge effects and (iii) off-axis effects. Our results provide improved fits to the light curves and constraints on physical parameters. More importantly, our results suggest that off-axis effects are important and mu"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1405.4867","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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:17:05Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Qo6KSCq2ic1RczQbdaTTrUn1uhINRikLR0rkLxEFGnc7FJKJCvyR1vJUe638s0t2FMYsKFOqMZmnDOM9DgLKDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T19:37:57.020260Z"},"content_sha256":"34f8a78f660a71ea7d377a0a992fd04672af270cdb886230de2d7635ac036719","schema_version":"1.0","event_id":"sha256:34f8a78f660a71ea7d377a0a992fd04672af270cdb886230de2d7635ac036719"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QDZEBXPZV44JNUDDN4HGTGRJJH/bundle.json","state_url":"https://pith.science/pith/QDZEBXPZV44JNUDDN4HGTGRJJH/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QDZEBXPZV44JNUDDN4HGTGRJJH/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":"2026-06-04T19:37:57Z","links":{"resolver":"https://pith.science/pith/QDZEBXPZV44JNUDDN4HGTGRJJH","bundle":"https://pith.science/pith/QDZEBXPZV44JNUDDN4HGTGRJJH/bundle.json","state":"https://pith.science/pith/QDZEBXPZV44JNUDDN4HGTGRJJH/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QDZEBXPZV44JNUDDN4HGTGRJJH/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:QDZEBXPZV44JNUDDN4HGTGRJJH","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":"b13a12fe840408ce7c84abb49b0b70e9edd423f2835b6fc673e40ecfee96954c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2014-05-19T20:00:26Z","title_canon_sha256":"36aea1864d59dcb0e99d90671f7bc574bfe8432935d44fa69b8e46e81850707f"},"schema_version":"1.0","source":{"id":"1405.4867","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1405.4867","created_at":"2026-05-18T01:17:05Z"},{"alias_kind":"arxiv_version","alias_value":"1405.4867v2","created_at":"2026-05-18T01:17:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1405.4867","created_at":"2026-05-18T01:17:05Z"},{"alias_kind":"pith_short_12","alias_value":"QDZEBXPZV44J","created_at":"2026-05-18T12:28:43Z"},{"alias_kind":"pith_short_16","alias_value":"QDZEBXPZV44JNUDD","created_at":"2026-05-18T12:28:43Z"},{"alias_kind":"pith_short_8","alias_value":"QDZEBXPZ","created_at":"2026-05-18T12:28:43Z"}],"graph_snapshots":[{"event_id":"sha256:34f8a78f660a71ea7d377a0a992fd04672af270cdb886230de2d7635ac036719","target":"graph","created_at":"2026-05-18T01:17:05Z","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":"We present a sample of 27 GRBs with detailed Swift light curves supplemented by late time Chandra observations. To answer the missing jet-break problem in general, we develop a numerical simulation based model which can be directly fit to the data using Monte Carlo methods. Our numerical model takes into account all the factors that can shape a jet-break: (i) lateral expansion (ii) edge effects and (iii) off-axis effects. Our results provide improved fits to the light curves and constraints on physical parameters. More importantly, our results suggest that off-axis effects are important and mu","authors_text":"Andrew MacFadyen, Bin-Bin Zhang, David N. Burrows, Eleonora Troja, Geoffrey Scott Ryan, Hendrik van Eerten, Judith L. Racusin, Philip A. Evans","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2014-05-19T20:00:26Z","title":"An Analysis of Chandra Deep Follow-up GRBs: Implications for Off-Axis Jets"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1405.4867","kind":"arxiv","version":2},"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":"sha256:0cce19749bb7186d09c9c1215f5379fd8822b761ea45cfe5b3ce13ab87dbf198","target":"record","created_at":"2026-05-18T01:17:05Z","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":"b13a12fe840408ce7c84abb49b0b70e9edd423f2835b6fc673e40ecfee96954c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2014-05-19T20:00:26Z","title_canon_sha256":"36aea1864d59dcb0e99d90671f7bc574bfe8432935d44fa69b8e46e81850707f"},"schema_version":"1.0","source":{"id":"1405.4867","kind":"arxiv","version":2}},"canonical_sha256":"80f240ddf9af3896d0636f0e699a2949d7ec3348315a9c41d9634c4632d1d7e7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"80f240ddf9af3896d0636f0e699a2949d7ec3348315a9c41d9634c4632d1d7e7","first_computed_at":"2026-05-18T01:17:05.699230Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:17:05.699230Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"WbTNHHN7EAAiUPa7AfRTRDONWuGfFosQOHpe2aMp264BH0Wsi1IXBuHJSry9OQDpyAk2ZGwYEABa7QcS5kCMBg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:17:05.699967Z","signed_message":"canonical_sha256_bytes"},"source_id":"1405.4867","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0cce19749bb7186d09c9c1215f5379fd8822b761ea45cfe5b3ce13ab87dbf198","sha256:34f8a78f660a71ea7d377a0a992fd04672af270cdb886230de2d7635ac036719"],"state_sha256":"dad84bcd5bf37b88944be1b68c3ca468ddd3f9db0866933e488126a92d4a2cba"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XqcVEPrjjHxO9aEozZ7KRTuO21x5h/tI7y8OkKAgMErvNpEd3zuOqRNIkFVRdfL5TgX51vbvg6kjA+Ex17paBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-04T19:37:57.022826Z","bundle_sha256":"7e7951c5df505b2502b82a061a816ed244533f605a73fd7703e1f4a57fd5d780"}}