{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:2IOHXHHEHYIZL7KKIFPVVPBUKD","short_pith_number":"pith:2IOHXHHE","canonical_record":{"source":{"id":"0912.2216","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2009-12-11T12:36:55Z","cross_cats_sorted":[],"title_canon_sha256":"40bff05f2f9d0e4b1abc767b6d8882871c789bc0d5b12b13d169da3611cf2b31","abstract_canon_sha256":"41b91cf3a81885e43fa9f3521ff6cffc67ac9ebd04fa54761c7b0fbae6ade79a"},"schema_version":"1.0"},"canonical_sha256":"d21c7b9ce43e1195fd4a415f5abc3450faa80731df55df02ac72b250255136b8","source":{"kind":"arxiv","id":"0912.2216","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0912.2216","created_at":"2026-05-18T02:10:24Z"},{"alias_kind":"arxiv_version","alias_value":"0912.2216v1","created_at":"2026-05-18T02:10:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0912.2216","created_at":"2026-05-18T02:10:24Z"},{"alias_kind":"pith_short_12","alias_value":"2IOHXHHEHYIZ","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"2IOHXHHEHYIZL7KK","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"2IOHXHHE","created_at":"2026-05-18T12:25:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:2IOHXHHEHYIZL7KKIFPVVPBUKD","target":"record","payload":{"canonical_record":{"source":{"id":"0912.2216","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2009-12-11T12:36:55Z","cross_cats_sorted":[],"title_canon_sha256":"40bff05f2f9d0e4b1abc767b6d8882871c789bc0d5b12b13d169da3611cf2b31","abstract_canon_sha256":"41b91cf3a81885e43fa9f3521ff6cffc67ac9ebd04fa54761c7b0fbae6ade79a"},"schema_version":"1.0"},"canonical_sha256":"d21c7b9ce43e1195fd4a415f5abc3450faa80731df55df02ac72b250255136b8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:10:24.503362Z","signature_b64":"+eqZUqFO2g7vFIp3p/AIDSAQTiplq0hsqD+S+OQl4InEN/zN2vkx9yv2LLSAQoOkdNTmg6Pq7YWJN+/99BfyAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d21c7b9ce43e1195fd4a415f5abc3450faa80731df55df02ac72b250255136b8","last_reissued_at":"2026-05-18T02:10:24.502392Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:10:24.502392Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0912.2216","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":"2026-05-18T02:10:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WU29DoRVsA4mbMN7zXzQsFhv3Q+Dq9AWYcUIMm0IhJG+UFavILIyfgDmjVyX/df4jwKGRaUTcdDdR0DwQIsMCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T01:56:18.461152Z"},"content_sha256":"26d6079785c5d54fee0f1d67f0a4ce052ddbd11f98cb535ae78d4b6714815ceb","schema_version":"1.0","event_id":"sha256:26d6079785c5d54fee0f1d67f0a4ce052ddbd11f98cb535ae78d4b6714815ceb"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:2IOHXHHEHYIZL7KKIFPVVPBUKD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Powerful high energy emission of the remarkable BL Lac object S5 0716+714","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"A. Bulgarelli, A. Cavaliere, A. Ferrari, A. Giuliani, A. Paggi, A.W. Chen, F. D'Ammando, F. Longo, G. Pucella, I. Donnarumma, L. Pacciani, M. Tavani, P. Giommi, S. Colafrancesco, S. Vercellone, V. Vittorini","submitted_at":"2009-12-11T12:36:55Z","abstract_excerpt":"BL Lac objects of the intermediate subclass (IBLs) are known to emit a substantial fraction of their power in the energy range 0.1--10 GeV. Detecting gamma-ray emission from such sources provides therefore a direct probe of the emission mechanisms and of the underlying powerhouse.\n  The AGILE gamma-ray satellite detected the remarkable IBL S5 0716+714 (z \\simeq 0.3) during a high state in the period from 2007 September - October, marked by two very intense flares reaching peak fluxes of 200\\times10^{-8} ph / cm^2 s above 100 MeV, with simultaneous optical and X-ray observations. We present her"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0912.2216","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":"2026-05-18T02:10:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+huk9RL2Uz5Z3CHGpYxHPGiDH7fyquDLWrOB8LTVncWqFLqEy6xZY9kZqET8AKAI/EedevG0Iv391v8LKjzICA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T01:56:18.461514Z"},"content_sha256":"3d67ae9fd535ecda58d513010aeb73bae292ccafac2f43766bb2842dff9ca262","schema_version":"1.0","event_id":"sha256:3d67ae9fd535ecda58d513010aeb73bae292ccafac2f43766bb2842dff9ca262"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2IOHXHHEHYIZL7KKIFPVVPBUKD/bundle.json","state_url":"https://pith.science/pith/2IOHXHHEHYIZL7KKIFPVVPBUKD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2IOHXHHEHYIZL7KKIFPVVPBUKD/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":"2026-05-31T01:56:18Z","links":{"resolver":"https://pith.science/pith/2IOHXHHEHYIZL7KKIFPVVPBUKD","bundle":"https://pith.science/pith/2IOHXHHEHYIZL7KKIFPVVPBUKD/bundle.json","state":"https://pith.science/pith/2IOHXHHEHYIZL7KKIFPVVPBUKD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2IOHXHHEHYIZL7KKIFPVVPBUKD/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:2IOHXHHEHYIZL7KKIFPVVPBUKD","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":"41b91cf3a81885e43fa9f3521ff6cffc67ac9ebd04fa54761c7b0fbae6ade79a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2009-12-11T12:36:55Z","title_canon_sha256":"40bff05f2f9d0e4b1abc767b6d8882871c789bc0d5b12b13d169da3611cf2b31"},"schema_version":"1.0","source":{"id":"0912.2216","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0912.2216","created_at":"2026-05-18T02:10:24Z"},{"alias_kind":"arxiv_version","alias_value":"0912.2216v1","created_at":"2026-05-18T02:10:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0912.2216","created_at":"2026-05-18T02:10:24Z"},{"alias_kind":"pith_short_12","alias_value":"2IOHXHHEHYIZ","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"2IOHXHHEHYIZL7KK","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"2IOHXHHE","created_at":"2026-05-18T12:25:58Z"}],"graph_snapshots":[{"event_id":"sha256:3d67ae9fd535ecda58d513010aeb73bae292ccafac2f43766bb2842dff9ca262","target":"graph","created_at":"2026-05-18T02:10:24Z","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":"BL Lac objects of the intermediate subclass (IBLs) are known to emit a substantial fraction of their power in the energy range 0.1--10 GeV. Detecting gamma-ray emission from such sources provides therefore a direct probe of the emission mechanisms and of the underlying powerhouse.\n  The AGILE gamma-ray satellite detected the remarkable IBL S5 0716+714 (z \\simeq 0.3) during a high state in the period from 2007 September - October, marked by two very intense flares reaching peak fluxes of 200\\times10^{-8} ph / cm^2 s above 100 MeV, with simultaneous optical and X-ray observations. We present her","authors_text":"A. Bulgarelli, A. Cavaliere, A. Ferrari, A. Giuliani, A. Paggi, A.W. Chen, F. D'Ammando, F. Longo, G. Pucella, I. Donnarumma, L. Pacciani, M. Tavani, P. Giommi, S. Colafrancesco, S. Vercellone, V. Vittorini","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2009-12-11T12:36:55Z","title":"Powerful high energy emission of the remarkable BL Lac object S5 0716+714"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0912.2216","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":"sha256:26d6079785c5d54fee0f1d67f0a4ce052ddbd11f98cb535ae78d4b6714815ceb","target":"record","created_at":"2026-05-18T02:10:24Z","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":"41b91cf3a81885e43fa9f3521ff6cffc67ac9ebd04fa54761c7b0fbae6ade79a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2009-12-11T12:36:55Z","title_canon_sha256":"40bff05f2f9d0e4b1abc767b6d8882871c789bc0d5b12b13d169da3611cf2b31"},"schema_version":"1.0","source":{"id":"0912.2216","kind":"arxiv","version":1}},"canonical_sha256":"d21c7b9ce43e1195fd4a415f5abc3450faa80731df55df02ac72b250255136b8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d21c7b9ce43e1195fd4a415f5abc3450faa80731df55df02ac72b250255136b8","first_computed_at":"2026-05-18T02:10:24.502392Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:10:24.502392Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"+eqZUqFO2g7vFIp3p/AIDSAQTiplq0hsqD+S+OQl4InEN/zN2vkx9yv2LLSAQoOkdNTmg6Pq7YWJN+/99BfyAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:10:24.503362Z","signed_message":"canonical_sha256_bytes"},"source_id":"0912.2216","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:26d6079785c5d54fee0f1d67f0a4ce052ddbd11f98cb535ae78d4b6714815ceb","sha256:3d67ae9fd535ecda58d513010aeb73bae292ccafac2f43766bb2842dff9ca262"],"state_sha256":"fedfe277db8e728f2edef9f5166152cb0d8d5a07acdb7daff9c1137c12483c50"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"taPzgami1MTFSnLTCQap4Pq+SgHHh9Aje23FrwBmbJu0ielWCM6BrDLk/VyCrXbwJWYBoqflZAY8MRoNLRosBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T01:56:18.463466Z","bundle_sha256":"8bcf42d82a01949b657543ba83ef6bfd71f9eaf0e22efe4035a97a701b50991c"}}