{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:LIRWADA7OJN27UEKPLVKHYANFK","short_pith_number":"pith:LIRWADA7","canonical_record":{"source":{"id":"1604.01026","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2016-04-04T20:00:01Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"31e24ef7a3c61ce895756c45559b35997748c29bf80362fe43e94865890dff7c","abstract_canon_sha256":"8dd629d2d68914f95e92759ba1c23ca591b22508d0bc3ba9a5d675aab8edf893"},"schema_version":"1.0"},"canonical_sha256":"5a23600c1f725bafd08a7aeaa3e00d2aa2f4d139a8832043944aedb5ac9659f2","source":{"kind":"arxiv","id":"1604.01026","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1604.01026","created_at":"2026-05-18T00:50:01Z"},{"alias_kind":"arxiv_version","alias_value":"1604.01026v2","created_at":"2026-05-18T00:50:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1604.01026","created_at":"2026-05-18T00:50:01Z"},{"alias_kind":"pith_short_12","alias_value":"LIRWADA7OJN2","created_at":"2026-05-18T12:30:29Z"},{"alias_kind":"pith_short_16","alias_value":"LIRWADA7OJN27UEK","created_at":"2026-05-18T12:30:29Z"},{"alias_kind":"pith_short_8","alias_value":"LIRWADA7","created_at":"2026-05-18T12:30:29Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:LIRWADA7OJN27UEKPLVKHYANFK","target":"record","payload":{"canonical_record":{"source":{"id":"1604.01026","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2016-04-04T20:00:01Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"31e24ef7a3c61ce895756c45559b35997748c29bf80362fe43e94865890dff7c","abstract_canon_sha256":"8dd629d2d68914f95e92759ba1c23ca591b22508d0bc3ba9a5d675aab8edf893"},"schema_version":"1.0"},"canonical_sha256":"5a23600c1f725bafd08a7aeaa3e00d2aa2f4d139a8832043944aedb5ac9659f2","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:50:01.456275Z","signature_b64":"ObGRQ6zsxpvi98U6MoYe+71eEEmwc2mSjcSFmfXP75/8KQAdCB85aEgV7sUMkhpaleWVmubh9Vi7WZZcV85/Cg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5a23600c1f725bafd08a7aeaa3e00d2aa2f4d139a8832043944aedb5ac9659f2","last_reissued_at":"2026-05-18T00:50:01.455643Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:50:01.455643Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1604.01026","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":"2026-05-18T00:50:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"z79Fh2EsY02qVbCXCJvkcEyLMpfZxJQcw4wjmp5L17POZm1tbOOk4V7qzWs/chPWT2chRq8ySKUp1SYGNHcwAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T11:33:47.351888Z"},"content_sha256":"3ac7e94ca7e56f1d7703c6c092e6ea1e4caf8a115af0bf77dd823f69dcba5791","schema_version":"1.0","event_id":"sha256:3ac7e94ca7e56f1d7703c6c092e6ea1e4caf8a115af0bf77dd823f69dcba5791"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:LIRWADA7OJN27UEKPLVKHYANFK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The High-Energy Tail of the Galactic Center Gamma-Ray Excess","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ph"],"primary_cat":"astro-ph.HE","authors_text":"Benjamin R. Safdi, Nicholas L. Rodd, Tim Linden, Tracy R. Slatyer","submitted_at":"2016-04-04T20:00:01Z","abstract_excerpt":"Observations by the Fermi-LAT have uncovered a bright, spherically symmetric excess surrounding the center of the Milky Way galaxy. The spectrum of the gamma-ray excess peaks sharply at an energy ~2 GeV, exhibiting a hard spectrum at lower energies, and falls off quickly above an energy ~5 GeV. The spectrum of the excess above ~10 GeV is potentially an important discriminator between different physical models for its origin. We focus our study on observations of the gamma-ray excess at energies exceeding 10 GeV, finding: (1) a statistically significant excess remains in the energy range 9.5-47"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1604.01026","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":"2026-05-18T00:50:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4mA+pBC6/LSC/++AvpM147zKNcI+YxuOnxJUyyukSnDNZlNMPwu0KAdgzm1bDWMeEp2IEn8Cn6Q0UrHqY9NDCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T11:33:47.352710Z"},"content_sha256":"35dbf58d53ba44a92f0d49f6d637158fc07be7c40815d9e667f129918bc14038","schema_version":"1.0","event_id":"sha256:35dbf58d53ba44a92f0d49f6d637158fc07be7c40815d9e667f129918bc14038"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/LIRWADA7OJN27UEKPLVKHYANFK/bundle.json","state_url":"https://pith.science/pith/LIRWADA7OJN27UEKPLVKHYANFK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/LIRWADA7OJN27UEKPLVKHYANFK/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":"2026-05-30T11:33:47Z","links":{"resolver":"https://pith.science/pith/LIRWADA7OJN27UEKPLVKHYANFK","bundle":"https://pith.science/pith/LIRWADA7OJN27UEKPLVKHYANFK/bundle.json","state":"https://pith.science/pith/LIRWADA7OJN27UEKPLVKHYANFK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/LIRWADA7OJN27UEKPLVKHYANFK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:LIRWADA7OJN27UEKPLVKHYANFK","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":"8dd629d2d68914f95e92759ba1c23ca591b22508d0bc3ba9a5d675aab8edf893","cross_cats_sorted":["hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2016-04-04T20:00:01Z","title_canon_sha256":"31e24ef7a3c61ce895756c45559b35997748c29bf80362fe43e94865890dff7c"},"schema_version":"1.0","source":{"id":"1604.01026","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1604.01026","created_at":"2026-05-18T00:50:01Z"},{"alias_kind":"arxiv_version","alias_value":"1604.01026v2","created_at":"2026-05-18T00:50:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1604.01026","created_at":"2026-05-18T00:50:01Z"},{"alias_kind":"pith_short_12","alias_value":"LIRWADA7OJN2","created_at":"2026-05-18T12:30:29Z"},{"alias_kind":"pith_short_16","alias_value":"LIRWADA7OJN27UEK","created_at":"2026-05-18T12:30:29Z"},{"alias_kind":"pith_short_8","alias_value":"LIRWADA7","created_at":"2026-05-18T12:30:29Z"}],"graph_snapshots":[{"event_id":"sha256:35dbf58d53ba44a92f0d49f6d637158fc07be7c40815d9e667f129918bc14038","target":"graph","created_at":"2026-05-18T00:50:01Z","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":"Observations by the Fermi-LAT have uncovered a bright, spherically symmetric excess surrounding the center of the Milky Way galaxy. The spectrum of the gamma-ray excess peaks sharply at an energy ~2 GeV, exhibiting a hard spectrum at lower energies, and falls off quickly above an energy ~5 GeV. The spectrum of the excess above ~10 GeV is potentially an important discriminator between different physical models for its origin. We focus our study on observations of the gamma-ray excess at energies exceeding 10 GeV, finding: (1) a statistically significant excess remains in the energy range 9.5-47","authors_text":"Benjamin R. Safdi, Nicholas L. Rodd, Tim Linden, Tracy R. Slatyer","cross_cats":["hep-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2016-04-04T20:00:01Z","title":"The High-Energy Tail of the Galactic Center Gamma-Ray Excess"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1604.01026","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":"sha256:3ac7e94ca7e56f1d7703c6c092e6ea1e4caf8a115af0bf77dd823f69dcba5791","target":"record","created_at":"2026-05-18T00:50:01Z","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":"8dd629d2d68914f95e92759ba1c23ca591b22508d0bc3ba9a5d675aab8edf893","cross_cats_sorted":["hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2016-04-04T20:00:01Z","title_canon_sha256":"31e24ef7a3c61ce895756c45559b35997748c29bf80362fe43e94865890dff7c"},"schema_version":"1.0","source":{"id":"1604.01026","kind":"arxiv","version":2}},"canonical_sha256":"5a23600c1f725bafd08a7aeaa3e00d2aa2f4d139a8832043944aedb5ac9659f2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5a23600c1f725bafd08a7aeaa3e00d2aa2f4d139a8832043944aedb5ac9659f2","first_computed_at":"2026-05-18T00:50:01.455643Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:50:01.455643Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ObGRQ6zsxpvi98U6MoYe+71eEEmwc2mSjcSFmfXP75/8KQAdCB85aEgV7sUMkhpaleWVmubh9Vi7WZZcV85/Cg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:50:01.456275Z","signed_message":"canonical_sha256_bytes"},"source_id":"1604.01026","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3ac7e94ca7e56f1d7703c6c092e6ea1e4caf8a115af0bf77dd823f69dcba5791","sha256:35dbf58d53ba44a92f0d49f6d637158fc07be7c40815d9e667f129918bc14038"],"state_sha256":"f4d64b847f967923f31d92b14978fdcccdc525b71361b6eb650edf80cc2c8fad"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PeMN8nRn4fkpbtpQRU2eVDixB0+j1JWmGhVJ6G2gKaLKtWGZBpODlJgsBtKTyrulRWQtGSl64m//LtickLx6Aw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T11:33:47.357012Z","bundle_sha256":"02a5c00f84073d277fdb8f83675d30c9487697eadf3be84817f0913f27bd48ba"}}