{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2008:6LDIA5UONTA44RVKLF77L5Y2HO","short_pith_number":"pith:6LDIA5UO","canonical_record":{"source":{"id":"0812.4457","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-12-23T22:07:34Z","cross_cats_sorted":["hep-ph","hep-th"],"title_canon_sha256":"e81bfd76ba0efd5a38f912246c5032bf90e89105da9971c2e09a95f1747fb639","abstract_canon_sha256":"b28fdb751db7ca674694dcbb26c1997fd7701df92408eca868130794790ab23e"},"schema_version":"1.0"},"canonical_sha256":"f2c680768e6cc1ce46aa597ff5f71a3bbd52c811506d5cba49e473de40228ce1","source":{"kind":"arxiv","id":"0812.4457","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0812.4457","created_at":"2026-05-18T04:07:05Z"},{"alias_kind":"arxiv_version","alias_value":"0812.4457v2","created_at":"2026-05-18T04:07:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0812.4457","created_at":"2026-05-18T04:07:05Z"},{"alias_kind":"pith_short_12","alias_value":"6LDIA5UONTA4","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_16","alias_value":"6LDIA5UONTA44RVK","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_8","alias_value":"6LDIA5UO","created_at":"2026-05-18T12:25:56Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2008:6LDIA5UONTA44RVKLF77L5Y2HO","target":"record","payload":{"canonical_record":{"source":{"id":"0812.4457","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-12-23T22:07:34Z","cross_cats_sorted":["hep-ph","hep-th"],"title_canon_sha256":"e81bfd76ba0efd5a38f912246c5032bf90e89105da9971c2e09a95f1747fb639","abstract_canon_sha256":"b28fdb751db7ca674694dcbb26c1997fd7701df92408eca868130794790ab23e"},"schema_version":"1.0"},"canonical_sha256":"f2c680768e6cc1ce46aa597ff5f71a3bbd52c811506d5cba49e473de40228ce1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:07:05.512439Z","signature_b64":"B6ZJfAA8/AJzsWLdwq3G4x0H83pHL4QvRYU7GeXzH7bV4MeEKz4OBWp9qZNxfk8cAqD/IBiA8U2Yvcvvmz+ACw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f2c680768e6cc1ce46aa597ff5f71a3bbd52c811506d5cba49e473de40228ce1","last_reissued_at":"2026-05-18T04:07:05.511894Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:07:05.511894Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0812.4457","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":"2026-05-18T04:07:05Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NYU4LxXBW1Pz0LWiAuRyYB9vhjfiMd8OExM1YCYFPOUxRvvJ41PhdvDJsgmqR6Qlf0qFgLCb54nD4J1W8/+2CQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T17:50:07.502756Z"},"content_sha256":"1b6a78c9abea217735598b4548abe5b142cae8b7f23aa6fc68a68be3ab7b46ca","schema_version":"1.0","event_id":"sha256:1b6a78c9abea217735598b4548abe5b142cae8b7f23aa6fc68a68be3ab7b46ca"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2008:6LDIA5UONTA44RVKLF77L5Y2HO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Dissecting cosmic-ray electron-positron data with Occam's Razor: the role of known Pulsars","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ph","hep-th"],"primary_cat":"astro-ph","authors_text":"Santa Cruz), Stefano Profumo (University of California","submitted_at":"2008-12-23T22:07:34Z","abstract_excerpt":"We argue that both the positron fraction measured by PAMELA and the peculiar spectral features reported in the total electron-positron (e+e-) flux measured by ATIC have a very natural explanation in electron-positron pairs produced by nearby pulsars. While this possibility was pointed out a long time ago, the greatly improved quality of current data potentially allow to reverse-engineer the problem: given the regions of pulsar parameter space favored by PAMELA and by ATIC, are there known pulsars that explain the data with reasonable assumptions on the injected e+e- pairs? In the context of si"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0812.4457","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":"2026-05-18T04:07:05Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NNlvLxCvLANssCuJMVQezHl1ZMVqDYAaiC6/Ft64HjLGWz1afFu4emZ3XyIdj52HB8VWMuBiNyC4a4V3agmGDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T17:50:07.503396Z"},"content_sha256":"3ee2ef778322f5beb08e6393e425fb2ab904cd5b256eb851a4d0d0513f6806be","schema_version":"1.0","event_id":"sha256:3ee2ef778322f5beb08e6393e425fb2ab904cd5b256eb851a4d0d0513f6806be"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/6LDIA5UONTA44RVKLF77L5Y2HO/bundle.json","state_url":"https://pith.science/pith/6LDIA5UONTA44RVKLF77L5Y2HO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/6LDIA5UONTA44RVKLF77L5Y2HO/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":"2026-06-02T17:50:07Z","links":{"resolver":"https://pith.science/pith/6LDIA5UONTA44RVKLF77L5Y2HO","bundle":"https://pith.science/pith/6LDIA5UONTA44RVKLF77L5Y2HO/bundle.json","state":"https://pith.science/pith/6LDIA5UONTA44RVKLF77L5Y2HO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/6LDIA5UONTA44RVKLF77L5Y2HO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2008:6LDIA5UONTA44RVKLF77L5Y2HO","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":"b28fdb751db7ca674694dcbb26c1997fd7701df92408eca868130794790ab23e","cross_cats_sorted":["hep-ph","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-12-23T22:07:34Z","title_canon_sha256":"e81bfd76ba0efd5a38f912246c5032bf90e89105da9971c2e09a95f1747fb639"},"schema_version":"1.0","source":{"id":"0812.4457","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0812.4457","created_at":"2026-05-18T04:07:05Z"},{"alias_kind":"arxiv_version","alias_value":"0812.4457v2","created_at":"2026-05-18T04:07:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0812.4457","created_at":"2026-05-18T04:07:05Z"},{"alias_kind":"pith_short_12","alias_value":"6LDIA5UONTA4","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_16","alias_value":"6LDIA5UONTA44RVK","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_8","alias_value":"6LDIA5UO","created_at":"2026-05-18T12:25:56Z"}],"graph_snapshots":[{"event_id":"sha256:3ee2ef778322f5beb08e6393e425fb2ab904cd5b256eb851a4d0d0513f6806be","target":"graph","created_at":"2026-05-18T04:07:05Z","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 argue that both the positron fraction measured by PAMELA and the peculiar spectral features reported in the total electron-positron (e+e-) flux measured by ATIC have a very natural explanation in electron-positron pairs produced by nearby pulsars. While this possibility was pointed out a long time ago, the greatly improved quality of current data potentially allow to reverse-engineer the problem: given the regions of pulsar parameter space favored by PAMELA and by ATIC, are there known pulsars that explain the data with reasonable assumptions on the injected e+e- pairs? In the context of si","authors_text":"Santa Cruz), Stefano Profumo (University of California","cross_cats":["hep-ph","hep-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-12-23T22:07:34Z","title":"Dissecting cosmic-ray electron-positron data with Occam's Razor: the role of known Pulsars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0812.4457","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":"sha256:1b6a78c9abea217735598b4548abe5b142cae8b7f23aa6fc68a68be3ab7b46ca","target":"record","created_at":"2026-05-18T04:07:05Z","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":"b28fdb751db7ca674694dcbb26c1997fd7701df92408eca868130794790ab23e","cross_cats_sorted":["hep-ph","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-12-23T22:07:34Z","title_canon_sha256":"e81bfd76ba0efd5a38f912246c5032bf90e89105da9971c2e09a95f1747fb639"},"schema_version":"1.0","source":{"id":"0812.4457","kind":"arxiv","version":2}},"canonical_sha256":"f2c680768e6cc1ce46aa597ff5f71a3bbd52c811506d5cba49e473de40228ce1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f2c680768e6cc1ce46aa597ff5f71a3bbd52c811506d5cba49e473de40228ce1","first_computed_at":"2026-05-18T04:07:05.511894Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:07:05.511894Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"B6ZJfAA8/AJzsWLdwq3G4x0H83pHL4QvRYU7GeXzH7bV4MeEKz4OBWp9qZNxfk8cAqD/IBiA8U2Yvcvvmz+ACw==","signature_status":"signed_v1","signed_at":"2026-05-18T04:07:05.512439Z","signed_message":"canonical_sha256_bytes"},"source_id":"0812.4457","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1b6a78c9abea217735598b4548abe5b142cae8b7f23aa6fc68a68be3ab7b46ca","sha256:3ee2ef778322f5beb08e6393e425fb2ab904cd5b256eb851a4d0d0513f6806be"],"state_sha256":"617f2f4c5f23fa7db2abccb8e008f93f7534fb822d4e83f578eb309b1d16050f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8q9faBalhBKk7tx18ffzbaupPuQr1wLlFVKlATUPM0037IFsrQh4Vi84N/6W5k0uhfSypodcozm7PBwN6qUiAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T17:50:07.506569Z","bundle_sha256":"ea9ad4fa0712881660f376f873f7fd133ae22df315dec710edc0998224b68677"}}