{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:QLVFTWVK4QS6E2OP7MTZ75RED5","short_pith_number":"pith:QLVFTWVK","canonical_record":{"source":{"id":"2501.00582","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-12-31T18:15:32Z","cross_cats_sorted":[],"title_canon_sha256":"b1859c57b0119fea7123bfc0dd9ee49c3d84b8fd0b3fe1a99b9b7ac93a40b9ee","abstract_canon_sha256":"ad5a2ace3c5fb5cdee7da6f501659c81af86745d5c921de23b88b98a4e61e8c4"},"schema_version":"1.0"},"canonical_sha256":"82ea59daaae425e269cffb279ff6241f74a5028c1d243c126fb0592f483cdfaa","source":{"kind":"arxiv","id":"2501.00582","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2501.00582","created_at":"2026-07-05T11:19:02Z"},{"alias_kind":"arxiv_version","alias_value":"2501.00582v2","created_at":"2026-07-05T11:19:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2501.00582","created_at":"2026-07-05T11:19:02Z"},{"alias_kind":"pith_short_12","alias_value":"QLVFTWVK4QS6","created_at":"2026-07-05T11:19:02Z"},{"alias_kind":"pith_short_16","alias_value":"QLVFTWVK4QS6E2OP","created_at":"2026-07-05T11:19:02Z"},{"alias_kind":"pith_short_8","alias_value":"QLVFTWVK","created_at":"2026-07-05T11:19:02Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:QLVFTWVK4QS6E2OP7MTZ75RED5","target":"record","payload":{"canonical_record":{"source":{"id":"2501.00582","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-12-31T18:15:32Z","cross_cats_sorted":[],"title_canon_sha256":"b1859c57b0119fea7123bfc0dd9ee49c3d84b8fd0b3fe1a99b9b7ac93a40b9ee","abstract_canon_sha256":"ad5a2ace3c5fb5cdee7da6f501659c81af86745d5c921de23b88b98a4e61e8c4"},"schema_version":"1.0"},"canonical_sha256":"82ea59daaae425e269cffb279ff6241f74a5028c1d243c126fb0592f483cdfaa","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:19:02.551140Z","signature_b64":"ajieDd4K29CkrcoyH1YeiyI2DEW/bTyiJDLCGNeqsIQL60eXJJ3iWlCIDYbnPHMJXwmJ+RlqoMAgtDH4TteWCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"82ea59daaae425e269cffb279ff6241f74a5028c1d243c126fb0592f483cdfaa","last_reissued_at":"2026-07-05T11:19:02.550641Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:19:02.550641Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2501.00582","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":"2026-07-05T11:19:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rhfx2K0VT6rI4qDGIxiClanh7wLZ7zAWWHzExjGxhl711xLW9S6s/FxOi+KOwfSX65jCuaA1LpAuhVxaWOIjDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-14T02:40:18.801512Z"},"content_sha256":"c157e236ebf5760bdf094e89cb4d34685caa86251c31e17e6df88d5e5288248f","schema_version":"1.0","event_id":"sha256:c157e236ebf5760bdf094e89cb4d34685caa86251c31e17e6df88d5e5288248f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:QLVFTWVK4QS6E2OP7MTZ75RED5","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Fermi-LAT Discovery of a Gamma-ray Outburst from the Peculiar Compact Steep Spectrum Radiogalaxy 3C 216","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Dario Gasparrini, Federica Giacchino, Giovanni La Mura, Marcello Giroletti, Marco Laurenti, Stefano Ciprini","submitted_at":"2024-12-31T18:15:32Z","abstract_excerpt":"3C 216 is an extragalactic radio source classified as a compact steep spectrum (CSS) object, associated with the source 4FGL J0910.0+4257 detected by the Large Area Telescope (LAT) on board the Fermi Gamma-ray Space Telescope. The source exhibits extended radio structures as well as an inner relativistic jet. In general, jets accelerated by active galactic nuclei (AGNs) are efficient sources of non-thermal radiation, spanning from the radio band to X-ray and gamma-ray energies. Due to relativistic beaming, much of this radiation, particularly in the high-energy domain, is concentrated within a"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2501.00582","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2501.00582/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T11:19:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"I7wBlfrlQZ+1Q+sXlEW81IBpGRQoYX23Pv1DRN2+fmY4cO5xm2XnYfRTT0WodEmZheqcBTJgkLz8vSX8ZEr/AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-14T02:40:18.802005Z"},"content_sha256":"1d17a87708cb42620045215d2720f6a0ba55ae592ef2b1880aadd818efde6d11","schema_version":"1.0","event_id":"sha256:1d17a87708cb42620045215d2720f6a0ba55ae592ef2b1880aadd818efde6d11"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QLVFTWVK4QS6E2OP7MTZ75RED5/bundle.json","state_url":"https://pith.science/pith/QLVFTWVK4QS6E2OP7MTZ75RED5/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QLVFTWVK4QS6E2OP7MTZ75RED5/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":"2026-08-14T02:40:18Z","links":{"resolver":"https://pith.science/pith/QLVFTWVK4QS6E2OP7MTZ75RED5","bundle":"https://pith.science/pith/QLVFTWVK4QS6E2OP7MTZ75RED5/bundle.json","state":"https://pith.science/pith/QLVFTWVK4QS6E2OP7MTZ75RED5/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QLVFTWVK4QS6E2OP7MTZ75RED5/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:QLVFTWVK4QS6E2OP7MTZ75RED5","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":"ad5a2ace3c5fb5cdee7da6f501659c81af86745d5c921de23b88b98a4e61e8c4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-12-31T18:15:32Z","title_canon_sha256":"b1859c57b0119fea7123bfc0dd9ee49c3d84b8fd0b3fe1a99b9b7ac93a40b9ee"},"schema_version":"1.0","source":{"id":"2501.00582","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2501.00582","created_at":"2026-07-05T11:19:02Z"},{"alias_kind":"arxiv_version","alias_value":"2501.00582v2","created_at":"2026-07-05T11:19:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2501.00582","created_at":"2026-07-05T11:19:02Z"},{"alias_kind":"pith_short_12","alias_value":"QLVFTWVK4QS6","created_at":"2026-07-05T11:19:02Z"},{"alias_kind":"pith_short_16","alias_value":"QLVFTWVK4QS6E2OP","created_at":"2026-07-05T11:19:02Z"},{"alias_kind":"pith_short_8","alias_value":"QLVFTWVK","created_at":"2026-07-05T11:19:02Z"}],"graph_snapshots":[{"event_id":"sha256:1d17a87708cb42620045215d2720f6a0ba55ae592ef2b1880aadd818efde6d11","target":"graph","created_at":"2026-07-05T11:19:02Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2501.00582/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"3C 216 is an extragalactic radio source classified as a compact steep spectrum (CSS) object, associated with the source 4FGL J0910.0+4257 detected by the Large Area Telescope (LAT) on board the Fermi Gamma-ray Space Telescope. The source exhibits extended radio structures as well as an inner relativistic jet. In general, jets accelerated by active galactic nuclei (AGNs) are efficient sources of non-thermal radiation, spanning from the radio band to X-ray and gamma-ray energies. Due to relativistic beaming, much of this radiation, particularly in the high-energy domain, is concentrated within a","authors_text":"Dario Gasparrini, Federica Giacchino, Giovanni La Mura, Marcello Giroletti, Marco Laurenti, Stefano Ciprini","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-12-31T18:15:32Z","title":"Fermi-LAT Discovery of a Gamma-ray Outburst from the Peculiar Compact Steep Spectrum Radiogalaxy 3C 216"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2501.00582","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:c157e236ebf5760bdf094e89cb4d34685caa86251c31e17e6df88d5e5288248f","target":"record","created_at":"2026-07-05T11:19:02Z","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":"ad5a2ace3c5fb5cdee7da6f501659c81af86745d5c921de23b88b98a4e61e8c4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-12-31T18:15:32Z","title_canon_sha256":"b1859c57b0119fea7123bfc0dd9ee49c3d84b8fd0b3fe1a99b9b7ac93a40b9ee"},"schema_version":"1.0","source":{"id":"2501.00582","kind":"arxiv","version":2}},"canonical_sha256":"82ea59daaae425e269cffb279ff6241f74a5028c1d243c126fb0592f483cdfaa","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"82ea59daaae425e269cffb279ff6241f74a5028c1d243c126fb0592f483cdfaa","first_computed_at":"2026-07-05T11:19:02.550641Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:19:02.550641Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ajieDd4K29CkrcoyH1YeiyI2DEW/bTyiJDLCGNeqsIQL60eXJJ3iWlCIDYbnPHMJXwmJ+RlqoMAgtDH4TteWCg==","signature_status":"signed_v1","signed_at":"2026-07-05T11:19:02.551140Z","signed_message":"canonical_sha256_bytes"},"source_id":"2501.00582","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c157e236ebf5760bdf094e89cb4d34685caa86251c31e17e6df88d5e5288248f","sha256:1d17a87708cb42620045215d2720f6a0ba55ae592ef2b1880aadd818efde6d11"],"state_sha256":"1bcb0f337057e134f553d251c0045cf230bce921539d81de8cc148d6f67a6aa5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AARz4kFD8vN3Pp6nuQMKRMEYss/J6CWYMQbRlTx9JjOaNftViAGs9sb9QoVjgOQdjeR4z0YcpyufmrXKy2vsBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-14T02:40:18.805726Z","bundle_sha256":"22d0a6cb795e9a667f47b71493c1f33a9f2e6efed143716ac1eae3fe115d82df"}}