{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:GFVHV6LQKWTT6ANMLUMZMM5MM6","short_pith_number":"pith:GFVHV6LQ","canonical_record":{"source":{"id":"1705.10815","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-05-30T18:27:39Z","cross_cats_sorted":[],"title_canon_sha256":"813d6bc6452a690f1ab3420be50603f3e66992cb60a2950d58ef75d556080c33","abstract_canon_sha256":"2de295e1004bf668f98366df2d378aa919274ab2e4496d61d9fec27023e9b033"},"schema_version":"1.0"},"canonical_sha256":"316a7af97055a73f01ac5d199633ac67a60c022218a2e572a5ea8c663fd07f02","source":{"kind":"arxiv","id":"1705.10815","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1705.10815","created_at":"2026-05-18T00:29:30Z"},{"alias_kind":"arxiv_version","alias_value":"1705.10815v1","created_at":"2026-05-18T00:29:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1705.10815","created_at":"2026-05-18T00:29:30Z"},{"alias_kind":"pith_short_12","alias_value":"GFVHV6LQKWTT","created_at":"2026-05-18T12:31:15Z"},{"alias_kind":"pith_short_16","alias_value":"GFVHV6LQKWTT6ANM","created_at":"2026-05-18T12:31:15Z"},{"alias_kind":"pith_short_8","alias_value":"GFVHV6LQ","created_at":"2026-05-18T12:31:15Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:GFVHV6LQKWTT6ANMLUMZMM5MM6","target":"record","payload":{"canonical_record":{"source":{"id":"1705.10815","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-05-30T18:27:39Z","cross_cats_sorted":[],"title_canon_sha256":"813d6bc6452a690f1ab3420be50603f3e66992cb60a2950d58ef75d556080c33","abstract_canon_sha256":"2de295e1004bf668f98366df2d378aa919274ab2e4496d61d9fec27023e9b033"},"schema_version":"1.0"},"canonical_sha256":"316a7af97055a73f01ac5d199633ac67a60c022218a2e572a5ea8c663fd07f02","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:29:30.460608Z","signature_b64":"qQjf0wvIe283OMala49eVUK3fb2+6wGcbOcT0gS39Obv34YhO0bCrUubKTdjSlgX46XU9YJB/pKK0H4DCOtfBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"316a7af97055a73f01ac5d199633ac67a60c022218a2e572a5ea8c663fd07f02","last_reissued_at":"2026-05-18T00:29:30.459939Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:29:30.459939Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1705.10815","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":"2026-05-18T00:29:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jhbR38ulJninWEjIJfs+XyNT/PWMX/80AXj8ypUFnOuQ3ljhwtZPA7c/mQ9p0ILDxp+qZ/aUb93R3Rk89+5NBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-01T14:47:58.061433Z"},"content_sha256":"65e1549dfa0a30400b02ac49182059c44763f6cf2599a7c8449eff9519fbcaca","schema_version":"1.0","event_id":"sha256:65e1549dfa0a30400b02ac49182059c44763f6cf2599a7c8449eff9519fbcaca"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:GFVHV6LQKWTT6ANMLUMZMM5MM6","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Particle Acceleration in Pulsar Wind Nebulae: PIC modelling","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Benoit Cerutti (Univ. Grenoble Alpes), Lorenzo Sironi (Columbia Univ.)","submitted_at":"2017-05-30T18:27:39Z","abstract_excerpt":"We discuss the role of particle-in-cell (PIC) simulations in unveiling the origin of the emitting particles in PWNe. After describing the basics of the PIC technique, we summarize its implications for the quiescent and the flaring emission of the Crab Nebula, as a prototype of PWNe. A consensus seems to be emerging that, in addition to the standard scenario of particle acceleration via the Fermi process at the termination shock of the pulsar wind, magnetic reconnection in the wind, at the termination shock and in the Nebula plays a major role in powering the multi-wavelength signatures of PWNe"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1705.10815","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":"2026-05-18T00:29:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tTBrSRbe5e6m5OZ4QnM2c35GkTFiXDxxcPVDC3mC30vIIAHXfdwEpL0n7Ux2zhnTT8oMyvyywoiowq6ehaauAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-01T14:47:58.061935Z"},"content_sha256":"87b1f6da34ff29468c66b83387743276fa22f4f6fedef4b477f31d21607af31e","schema_version":"1.0","event_id":"sha256:87b1f6da34ff29468c66b83387743276fa22f4f6fedef4b477f31d21607af31e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/GFVHV6LQKWTT6ANMLUMZMM5MM6/bundle.json","state_url":"https://pith.science/pith/GFVHV6LQKWTT6ANMLUMZMM5MM6/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/GFVHV6LQKWTT6ANMLUMZMM5MM6/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":"2026-08-01T14:47:58Z","links":{"resolver":"https://pith.science/pith/GFVHV6LQKWTT6ANMLUMZMM5MM6","bundle":"https://pith.science/pith/GFVHV6LQKWTT6ANMLUMZMM5MM6/bundle.json","state":"https://pith.science/pith/GFVHV6LQKWTT6ANMLUMZMM5MM6/state.json","well_known_bundle":"https://pith.science/.well-known/pith/GFVHV6LQKWTT6ANMLUMZMM5MM6/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:GFVHV6LQKWTT6ANMLUMZMM5MM6","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":"2de295e1004bf668f98366df2d378aa919274ab2e4496d61d9fec27023e9b033","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-05-30T18:27:39Z","title_canon_sha256":"813d6bc6452a690f1ab3420be50603f3e66992cb60a2950d58ef75d556080c33"},"schema_version":"1.0","source":{"id":"1705.10815","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1705.10815","created_at":"2026-05-18T00:29:30Z"},{"alias_kind":"arxiv_version","alias_value":"1705.10815v1","created_at":"2026-05-18T00:29:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1705.10815","created_at":"2026-05-18T00:29:30Z"},{"alias_kind":"pith_short_12","alias_value":"GFVHV6LQKWTT","created_at":"2026-05-18T12:31:15Z"},{"alias_kind":"pith_short_16","alias_value":"GFVHV6LQKWTT6ANM","created_at":"2026-05-18T12:31:15Z"},{"alias_kind":"pith_short_8","alias_value":"GFVHV6LQ","created_at":"2026-05-18T12:31:15Z"}],"graph_snapshots":[{"event_id":"sha256:87b1f6da34ff29468c66b83387743276fa22f4f6fedef4b477f31d21607af31e","target":"graph","created_at":"2026-05-18T00:29:30Z","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 discuss the role of particle-in-cell (PIC) simulations in unveiling the origin of the emitting particles in PWNe. After describing the basics of the PIC technique, we summarize its implications for the quiescent and the flaring emission of the Crab Nebula, as a prototype of PWNe. A consensus seems to be emerging that, in addition to the standard scenario of particle acceleration via the Fermi process at the termination shock of the pulsar wind, magnetic reconnection in the wind, at the termination shock and in the Nebula plays a major role in powering the multi-wavelength signatures of PWNe","authors_text":"Benoit Cerutti (Univ. Grenoble Alpes), Lorenzo Sironi (Columbia Univ.)","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-05-30T18:27:39Z","title":"Particle Acceleration in Pulsar Wind Nebulae: PIC modelling"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1705.10815","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":"sha256:65e1549dfa0a30400b02ac49182059c44763f6cf2599a7c8449eff9519fbcaca","target":"record","created_at":"2026-05-18T00:29:30Z","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":"2de295e1004bf668f98366df2d378aa919274ab2e4496d61d9fec27023e9b033","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-05-30T18:27:39Z","title_canon_sha256":"813d6bc6452a690f1ab3420be50603f3e66992cb60a2950d58ef75d556080c33"},"schema_version":"1.0","source":{"id":"1705.10815","kind":"arxiv","version":1}},"canonical_sha256":"316a7af97055a73f01ac5d199633ac67a60c022218a2e572a5ea8c663fd07f02","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"316a7af97055a73f01ac5d199633ac67a60c022218a2e572a5ea8c663fd07f02","first_computed_at":"2026-05-18T00:29:30.459939Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:29:30.459939Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"qQjf0wvIe283OMala49eVUK3fb2+6wGcbOcT0gS39Obv34YhO0bCrUubKTdjSlgX46XU9YJB/pKK0H4DCOtfBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:29:30.460608Z","signed_message":"canonical_sha256_bytes"},"source_id":"1705.10815","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:65e1549dfa0a30400b02ac49182059c44763f6cf2599a7c8449eff9519fbcaca","sha256:87b1f6da34ff29468c66b83387743276fa22f4f6fedef4b477f31d21607af31e"],"state_sha256":"b4ce9d1c341fbc5edd314eff316b18d0a9714accfe99723ab3943c5b537cb805"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Mky75Ll0+GNrCsX2HhdN9L60gSzDnsMXxyzoSMKCbYRATa+nB9g26B4ciFIOgC4X0kUvL/GDX6LQM1ytVKDuAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-01T14:47:58.067190Z","bundle_sha256":"024ee96f09001b9300ad11eb3ddabccf0bb8df4a56b3b06b2ac5dad43ab1df77"}}