{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:JBQ7EHBRKELO5AH4MXU7ODRXAL","short_pith_number":"pith:JBQ7EHBR","canonical_record":{"source":{"id":"1901.05438","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2019-01-16T18:59:58Z","cross_cats_sorted":["physics.plasm-ph"],"title_canon_sha256":"f6aca0f6054020824276db58474ce8bdd67cce105c18ee2ccd7e6a097f5e4b9f","abstract_canon_sha256":"14c4af47e5bddc5d1447462588f6e4a4868bf97d8377de95f8807f0ba5741caf"},"schema_version":"1.0"},"canonical_sha256":"4861f21c315116ee80fc65e9f70e3702c35035f0d45a62459febc837e7f5d065","source":{"kind":"arxiv","id":"1901.05438","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1901.05438","created_at":"2026-05-17T23:51:41Z"},{"alias_kind":"arxiv_version","alias_value":"1901.05438v2","created_at":"2026-05-17T23:51:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1901.05438","created_at":"2026-05-17T23:51:41Z"},{"alias_kind":"pith_short_12","alias_value":"JBQ7EHBRKELO","created_at":"2026-05-18T12:33:18Z"},{"alias_kind":"pith_short_16","alias_value":"JBQ7EHBRKELO5AH4","created_at":"2026-05-18T12:33:18Z"},{"alias_kind":"pith_short_8","alias_value":"JBQ7EHBR","created_at":"2026-05-18T12:33:18Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:JBQ7EHBRKELO5AH4MXU7ODRXAL","target":"record","payload":{"canonical_record":{"source":{"id":"1901.05438","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2019-01-16T18:59:58Z","cross_cats_sorted":["physics.plasm-ph"],"title_canon_sha256":"f6aca0f6054020824276db58474ce8bdd67cce105c18ee2ccd7e6a097f5e4b9f","abstract_canon_sha256":"14c4af47e5bddc5d1447462588f6e4a4868bf97d8377de95f8807f0ba5741caf"},"schema_version":"1.0"},"canonical_sha256":"4861f21c315116ee80fc65e9f70e3702c35035f0d45a62459febc837e7f5d065","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:51:41.801870Z","signature_b64":"4bxZAz2+TMh38+m47TgpBay0Ln2tx86UvRn9t94YUfjhBpAI5LWNETjwdnZ/Uy/Jorda33cK9QZNBhiIQxrKCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4861f21c315116ee80fc65e9f70e3702c35035f0d45a62459febc837e7f5d065","last_reissued_at":"2026-05-17T23:51:41.801381Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:51:41.801381Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1901.05438","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":"2026-05-17T23:51:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JKllWAYP4bRw5O8JZd81GeXClCroatHv1rEWhrzofJsGIeESMNDdRVfMCJWvdMPFek2OJALDPaqqh6BSRYrRBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-01T20:25:39.258163Z"},"content_sha256":"0289327bdaaf3f433bf069aaa2d0c54c37b12a2abdccda687fccf0fab5146b56","schema_version":"1.0","event_id":"sha256:0289327bdaaf3f433bf069aaa2d0c54c37b12a2abdccda687fccf0fab5146b56"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:JBQ7EHBRKELO5AH4MXU7ODRXAL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Electron and Proton Heating in Transrelativistic Guide Field Reconnection","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.plasm-ph"],"primary_cat":"astro-ph.HE","authors_text":"(2) Columbia), Lorenzo Sironi (2), Michael E. Rowan (1), Ramesh Narayan (1) ((1) Harvard","submitted_at":"2019-01-16T18:59:58Z","abstract_excerpt":"The plasma in low-luminosity accretion flows, such as the one around the black hole at the center of M87 or Sgr A* at our Galactic Center, is expected to be collisioness and two-temperature, with protons hotter than electrons. Here, particle heating is expected to be controlled by magnetic reconnection in the transrelativistic regime $\\sigma_{w}\\sim 0.1$-$1$, where the magnetization $\\sigma_{w}$ is the ratio of magnetic energy density to plasma enthalpy density. By means of large-scale 2D particle-in-cell simulations, we explore for a fiducial $\\sigma_w=0.1$ how the dissipated magnetic energy "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1901.05438","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":"2026-05-17T23:51:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FRRcT0+uh0u4kLLmgDhOKJVUV3G8iacndTrUOG29rETTfi0duLVZQjbYJ2DPJhMEj/j9Qte3CHTFyHTix9qmCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-01T20:25:39.258647Z"},"content_sha256":"0da6d1c61e15f2fa99bd4b86ff2ea559f992f78fc3187d0d39fc75b1c750a6ea","schema_version":"1.0","event_id":"sha256:0da6d1c61e15f2fa99bd4b86ff2ea559f992f78fc3187d0d39fc75b1c750a6ea"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JBQ7EHBRKELO5AH4MXU7ODRXAL/bundle.json","state_url":"https://pith.science/pith/JBQ7EHBRKELO5AH4MXU7ODRXAL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JBQ7EHBRKELO5AH4MXU7ODRXAL/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":"2026-07-01T20:25:39Z","links":{"resolver":"https://pith.science/pith/JBQ7EHBRKELO5AH4MXU7ODRXAL","bundle":"https://pith.science/pith/JBQ7EHBRKELO5AH4MXU7ODRXAL/bundle.json","state":"https://pith.science/pith/JBQ7EHBRKELO5AH4MXU7ODRXAL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JBQ7EHBRKELO5AH4MXU7ODRXAL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:JBQ7EHBRKELO5AH4MXU7ODRXAL","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":"14c4af47e5bddc5d1447462588f6e4a4868bf97d8377de95f8807f0ba5741caf","cross_cats_sorted":["physics.plasm-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2019-01-16T18:59:58Z","title_canon_sha256":"f6aca0f6054020824276db58474ce8bdd67cce105c18ee2ccd7e6a097f5e4b9f"},"schema_version":"1.0","source":{"id":"1901.05438","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1901.05438","created_at":"2026-05-17T23:51:41Z"},{"alias_kind":"arxiv_version","alias_value":"1901.05438v2","created_at":"2026-05-17T23:51:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1901.05438","created_at":"2026-05-17T23:51:41Z"},{"alias_kind":"pith_short_12","alias_value":"JBQ7EHBRKELO","created_at":"2026-05-18T12:33:18Z"},{"alias_kind":"pith_short_16","alias_value":"JBQ7EHBRKELO5AH4","created_at":"2026-05-18T12:33:18Z"},{"alias_kind":"pith_short_8","alias_value":"JBQ7EHBR","created_at":"2026-05-18T12:33:18Z"}],"graph_snapshots":[{"event_id":"sha256:0da6d1c61e15f2fa99bd4b86ff2ea559f992f78fc3187d0d39fc75b1c750a6ea","target":"graph","created_at":"2026-05-17T23:51:41Z","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":"The plasma in low-luminosity accretion flows, such as the one around the black hole at the center of M87 or Sgr A* at our Galactic Center, is expected to be collisioness and two-temperature, with protons hotter than electrons. Here, particle heating is expected to be controlled by magnetic reconnection in the transrelativistic regime $\\sigma_{w}\\sim 0.1$-$1$, where the magnetization $\\sigma_{w}$ is the ratio of magnetic energy density to plasma enthalpy density. By means of large-scale 2D particle-in-cell simulations, we explore for a fiducial $\\sigma_w=0.1$ how the dissipated magnetic energy ","authors_text":"(2) Columbia), Lorenzo Sironi (2), Michael E. Rowan (1), Ramesh Narayan (1) ((1) Harvard","cross_cats":["physics.plasm-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2019-01-16T18:59:58Z","title":"Electron and Proton Heating in Transrelativistic Guide Field Reconnection"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1901.05438","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":"sha256:0289327bdaaf3f433bf069aaa2d0c54c37b12a2abdccda687fccf0fab5146b56","target":"record","created_at":"2026-05-17T23:51:41Z","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":"14c4af47e5bddc5d1447462588f6e4a4868bf97d8377de95f8807f0ba5741caf","cross_cats_sorted":["physics.plasm-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2019-01-16T18:59:58Z","title_canon_sha256":"f6aca0f6054020824276db58474ce8bdd67cce105c18ee2ccd7e6a097f5e4b9f"},"schema_version":"1.0","source":{"id":"1901.05438","kind":"arxiv","version":2}},"canonical_sha256":"4861f21c315116ee80fc65e9f70e3702c35035f0d45a62459febc837e7f5d065","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4861f21c315116ee80fc65e9f70e3702c35035f0d45a62459febc837e7f5d065","first_computed_at":"2026-05-17T23:51:41.801381Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:51:41.801381Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"4bxZAz2+TMh38+m47TgpBay0Ln2tx86UvRn9t94YUfjhBpAI5LWNETjwdnZ/Uy/Jorda33cK9QZNBhiIQxrKCA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:51:41.801870Z","signed_message":"canonical_sha256_bytes"},"source_id":"1901.05438","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0289327bdaaf3f433bf069aaa2d0c54c37b12a2abdccda687fccf0fab5146b56","sha256:0da6d1c61e15f2fa99bd4b86ff2ea559f992f78fc3187d0d39fc75b1c750a6ea"],"state_sha256":"9a4c0a9865a100766e223efe05166147847a53be81dc9ff1f07ff39a7c10f688"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gwhRaLZ/JN+dpVi961YX7k4v3KLix85C3R1Q2BjOuHzCa/e5YhAkrZF1TTOKnsJWl0GiDYKfUkent9WDH6cWCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-01T20:25:39.261542Z","bundle_sha256":"2f4eb000757b36089d809d01bc7cd16cfaa00d786d656161760366c676eb7dfd"}}