{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:WTIWC43G3GE5IZT776GRXNXWL4","short_pith_number":"pith:WTIWC43G","canonical_record":{"source":{"id":"1107.1236","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2011-07-06T20:00:04Z","cross_cats_sorted":[],"title_canon_sha256":"e556594cc8e9cc45d76cb6ffd548fbee422c2e23f8ab053dfda7d5cb3b8819c7","abstract_canon_sha256":"6ed39d92ea5531c692d76547fd0691bcdbd3224e77959d695f0c0df11147aff7"},"schema_version":"1.0"},"canonical_sha256":"b4d1617366d989d4667fff8d1bb6f65f3504302a29c4f29b387f72da607b5230","source":{"kind":"arxiv","id":"1107.1236","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1107.1236","created_at":"2026-05-18T03:53:29Z"},{"alias_kind":"arxiv_version","alias_value":"1107.1236v1","created_at":"2026-05-18T03:53:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1107.1236","created_at":"2026-05-18T03:53:29Z"},{"alias_kind":"pith_short_12","alias_value":"WTIWC43G3GE5","created_at":"2026-05-18T12:26:44Z"},{"alias_kind":"pith_short_16","alias_value":"WTIWC43G3GE5IZT7","created_at":"2026-05-18T12:26:44Z"},{"alias_kind":"pith_short_8","alias_value":"WTIWC43G","created_at":"2026-05-18T12:26:44Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:WTIWC43G3GE5IZT776GRXNXWL4","target":"record","payload":{"canonical_record":{"source":{"id":"1107.1236","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2011-07-06T20:00:04Z","cross_cats_sorted":[],"title_canon_sha256":"e556594cc8e9cc45d76cb6ffd548fbee422c2e23f8ab053dfda7d5cb3b8819c7","abstract_canon_sha256":"6ed39d92ea5531c692d76547fd0691bcdbd3224e77959d695f0c0df11147aff7"},"schema_version":"1.0"},"canonical_sha256":"b4d1617366d989d4667fff8d1bb6f65f3504302a29c4f29b387f72da607b5230","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:53:29.409632Z","signature_b64":"HfaJMYLkwqpb9+ITRg9tM1bikQV20KOWHc/16v2C3jKeAOGhs/2jTYEoxbcmMKfGYIUaI1W348RWLm2FCQ2ZCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b4d1617366d989d4667fff8d1bb6f65f3504302a29c4f29b387f72da607b5230","last_reissued_at":"2026-05-18T03:53:29.408983Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:53:29.408983Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1107.1236","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":"2026-05-18T03:53:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dgnBwCK/iAvBtDxJXstZYztMMupZt4PqMM+1+tVDKG/djqzFPpJ/QHvuPG2DBnQ2UkjNYnkAhZUsM2WtZTYNDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T19:19:56.315443Z"},"content_sha256":"e2be7e2411df0a0d25836f6224b32755fe73fc8472a1f8d588e2ab906fd6d442","schema_version":"1.0","event_id":"sha256:e2be7e2411df0a0d25836f6224b32755fe73fc8472a1f8d588e2ab906fd6d442"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:WTIWC43G3GE5IZT776GRXNXWL4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Evidence for mild deviation from power-law distribution of electrons in relativistic shocks: GRB 090902B","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Pawan Kumar, Rodolfo Barniol Duran","submitted_at":"2011-07-06T20:00:04Z","abstract_excerpt":"Many previous studies have determined that the long lasting emission at X-ray, optical and radio wavelengths from gamma-ray bursts (GRBs), called the afterglow, is likely produced by the external forward shock model. In this model, the GRB jet interacts with the circum-stellar medium and drives a shock that heats the medium, which radiates via synchrotron emission. In this work, we carried out a detailed analysis of the late time afterglow data of GRB 090902B using a very careful accounting of the Inverse Compton losses. We find that in the context of the external forward shock model, the only"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1107.1236","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":"2026-05-18T03:53:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9OIfx3DdIFjldr8+IyCArBn+xwJp4wydoRokoXA0CIQiqaYXas4gbDT3YS56DXcfQPKmUricLm68eTnSiMkZBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T19:19:56.316113Z"},"content_sha256":"386a1c8fbbe23da9beb42bfafb035039d6c95f8f913edaffbceb1a1390c8a476","schema_version":"1.0","event_id":"sha256:386a1c8fbbe23da9beb42bfafb035039d6c95f8f913edaffbceb1a1390c8a476"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WTIWC43G3GE5IZT776GRXNXWL4/bundle.json","state_url":"https://pith.science/pith/WTIWC43G3GE5IZT776GRXNXWL4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WTIWC43G3GE5IZT776GRXNXWL4/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":"2026-05-31T19:19:56Z","links":{"resolver":"https://pith.science/pith/WTIWC43G3GE5IZT776GRXNXWL4","bundle":"https://pith.science/pith/WTIWC43G3GE5IZT776GRXNXWL4/bundle.json","state":"https://pith.science/pith/WTIWC43G3GE5IZT776GRXNXWL4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WTIWC43G3GE5IZT776GRXNXWL4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:WTIWC43G3GE5IZT776GRXNXWL4","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":"6ed39d92ea5531c692d76547fd0691bcdbd3224e77959d695f0c0df11147aff7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2011-07-06T20:00:04Z","title_canon_sha256":"e556594cc8e9cc45d76cb6ffd548fbee422c2e23f8ab053dfda7d5cb3b8819c7"},"schema_version":"1.0","source":{"id":"1107.1236","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1107.1236","created_at":"2026-05-18T03:53:29Z"},{"alias_kind":"arxiv_version","alias_value":"1107.1236v1","created_at":"2026-05-18T03:53:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1107.1236","created_at":"2026-05-18T03:53:29Z"},{"alias_kind":"pith_short_12","alias_value":"WTIWC43G3GE5","created_at":"2026-05-18T12:26:44Z"},{"alias_kind":"pith_short_16","alias_value":"WTIWC43G3GE5IZT7","created_at":"2026-05-18T12:26:44Z"},{"alias_kind":"pith_short_8","alias_value":"WTIWC43G","created_at":"2026-05-18T12:26:44Z"}],"graph_snapshots":[{"event_id":"sha256:386a1c8fbbe23da9beb42bfafb035039d6c95f8f913edaffbceb1a1390c8a476","target":"graph","created_at":"2026-05-18T03:53:29Z","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":"Many previous studies have determined that the long lasting emission at X-ray, optical and radio wavelengths from gamma-ray bursts (GRBs), called the afterglow, is likely produced by the external forward shock model. In this model, the GRB jet interacts with the circum-stellar medium and drives a shock that heats the medium, which radiates via synchrotron emission. In this work, we carried out a detailed analysis of the late time afterglow data of GRB 090902B using a very careful accounting of the Inverse Compton losses. We find that in the context of the external forward shock model, the only","authors_text":"Pawan Kumar, Rodolfo Barniol Duran","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2011-07-06T20:00:04Z","title":"Evidence for mild deviation from power-law distribution of electrons in relativistic shocks: GRB 090902B"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1107.1236","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:e2be7e2411df0a0d25836f6224b32755fe73fc8472a1f8d588e2ab906fd6d442","target":"record","created_at":"2026-05-18T03:53:29Z","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":"6ed39d92ea5531c692d76547fd0691bcdbd3224e77959d695f0c0df11147aff7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2011-07-06T20:00:04Z","title_canon_sha256":"e556594cc8e9cc45d76cb6ffd548fbee422c2e23f8ab053dfda7d5cb3b8819c7"},"schema_version":"1.0","source":{"id":"1107.1236","kind":"arxiv","version":1}},"canonical_sha256":"b4d1617366d989d4667fff8d1bb6f65f3504302a29c4f29b387f72da607b5230","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b4d1617366d989d4667fff8d1bb6f65f3504302a29c4f29b387f72da607b5230","first_computed_at":"2026-05-18T03:53:29.408983Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:53:29.408983Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"HfaJMYLkwqpb9+ITRg9tM1bikQV20KOWHc/16v2C3jKeAOGhs/2jTYEoxbcmMKfGYIUaI1W348RWLm2FCQ2ZCg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:53:29.409632Z","signed_message":"canonical_sha256_bytes"},"source_id":"1107.1236","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e2be7e2411df0a0d25836f6224b32755fe73fc8472a1f8d588e2ab906fd6d442","sha256:386a1c8fbbe23da9beb42bfafb035039d6c95f8f913edaffbceb1a1390c8a476"],"state_sha256":"eb75811ff93c4096a5e708abdf5226fd3a4e066ae4e2779e5c3a8e54f47c8a7a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"thom7I1PVvIADFmDBspWp6YgQNETcXwZG2P9pqXIxtRxnqozANduF5hcy/aQgbbZalAYoaKyyUvPE3VMPuu0Dw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T19:19:56.320421Z","bundle_sha256":"b934b51e852f1e01eeb78407807b5cb6b822618202265d1bc8c9fd24341696b2"}}