{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:6RNKYHOY5TZQALFYZ5QD6RWAIR","short_pith_number":"pith:6RNKYHOY","canonical_record":{"source":{"id":"0912.2592","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-12-14T09:00:31Z","cross_cats_sorted":[],"title_canon_sha256":"6c0f8330584949378fd392ee16621dcb99b98b84ffc6d3a7d1fdf33a6cc268d4","abstract_canon_sha256":"6a42b85fc39cb0f45c5dd22ea9ed39f52127fa8de49e1cb0500847dbd5e138c7"},"schema_version":"1.0"},"canonical_sha256":"f45aac1dd8ecf3002cb8cf603f46c04469c0fa38c570117322aba2f26476e4b5","source":{"kind":"arxiv","id":"0912.2592","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0912.2592","created_at":"2026-05-18T02:33:56Z"},{"alias_kind":"arxiv_version","alias_value":"0912.2592v1","created_at":"2026-05-18T02:33:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0912.2592","created_at":"2026-05-18T02:33:56Z"},{"alias_kind":"pith_short_12","alias_value":"6RNKYHOY5TZQ","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"6RNKYHOY5TZQALFY","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"6RNKYHOY","created_at":"2026-05-18T12:25:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:6RNKYHOY5TZQALFYZ5QD6RWAIR","target":"record","payload":{"canonical_record":{"source":{"id":"0912.2592","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-12-14T09:00:31Z","cross_cats_sorted":[],"title_canon_sha256":"6c0f8330584949378fd392ee16621dcb99b98b84ffc6d3a7d1fdf33a6cc268d4","abstract_canon_sha256":"6a42b85fc39cb0f45c5dd22ea9ed39f52127fa8de49e1cb0500847dbd5e138c7"},"schema_version":"1.0"},"canonical_sha256":"f45aac1dd8ecf3002cb8cf603f46c04469c0fa38c570117322aba2f26476e4b5","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:33:56.647448Z","signature_b64":"nv0P9jj322qp3vcXgBdDB1mrbe5ZjlN+lb6SCr53zGxrNNAzSGYNDifRcgYt3kA2WDRhuyfCVUx02f7liUIKDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f45aac1dd8ecf3002cb8cf603f46c04469c0fa38c570117322aba2f26476e4b5","last_reissued_at":"2026-05-18T02:33:56.647082Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:33:56.647082Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0912.2592","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":"2026-05-18T02:33:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"R3eB+Nov7k0rPfRP8IsfAe6s583pLaMaru0zj4xD3HFxtoPNTKdLoxoEhXBT3B7qRMXvqvel2l997RsGFBGDAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T07:00:22.787068Z"},"content_sha256":"2609f5a1695fb05403c277cf6d41bb3b225a27bf1fa2b8008a5319ec3ed4d104","schema_version":"1.0","event_id":"sha256:2609f5a1695fb05403c277cf6d41bb3b225a27bf1fa2b8008a5319ec3ed4d104"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:6RNKYHOY5TZQALFYZ5QD6RWAIR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Signatures of impulsive localized heating in the temperature distribution of multi-stranded coronal loops","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"A. C. Lanzafame, A. F. Lanza, D. Spadaro, R. Susino","submitted_at":"2009-12-14T09:00:31Z","abstract_excerpt":"We study the signatures of different coronal heating regimes on the differential emission measure (DEM) of multi-stranded coronal loops by means of hydrodynamic simulations. We consider heating either uniformly distributed along the loops or localized close to the chromospheric footpoints, in both steady and impulsive conditions. Our simulations show that condensation at the top of the loop forms when the localized heating is impulsive with a pulse cadence time shorter than the plasma cooling time, and the pulse energy is below a certain threshold. A condensation does not produce observable si"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0912.2592","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":"2026-05-18T02:33:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PW1K1AkwLIbuoiQfJR0O/G2vX3k5ulFPSkqbzZDDT0Bt7beT4a/PZpe24T12VWiXojuG8YuXU53YCscX88ZhBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T07:00:22.787437Z"},"content_sha256":"538bab4a0154dbaf2ba8f38053b50b11e4ca768f18626ca6e1fdebbcb6cf5835","schema_version":"1.0","event_id":"sha256:538bab4a0154dbaf2ba8f38053b50b11e4ca768f18626ca6e1fdebbcb6cf5835"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/6RNKYHOY5TZQALFYZ5QD6RWAIR/bundle.json","state_url":"https://pith.science/pith/6RNKYHOY5TZQALFYZ5QD6RWAIR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/6RNKYHOY5TZQALFYZ5QD6RWAIR/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":"2026-05-30T07:00:22Z","links":{"resolver":"https://pith.science/pith/6RNKYHOY5TZQALFYZ5QD6RWAIR","bundle":"https://pith.science/pith/6RNKYHOY5TZQALFYZ5QD6RWAIR/bundle.json","state":"https://pith.science/pith/6RNKYHOY5TZQALFYZ5QD6RWAIR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/6RNKYHOY5TZQALFYZ5QD6RWAIR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:6RNKYHOY5TZQALFYZ5QD6RWAIR","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":"6a42b85fc39cb0f45c5dd22ea9ed39f52127fa8de49e1cb0500847dbd5e138c7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-12-14T09:00:31Z","title_canon_sha256":"6c0f8330584949378fd392ee16621dcb99b98b84ffc6d3a7d1fdf33a6cc268d4"},"schema_version":"1.0","source":{"id":"0912.2592","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0912.2592","created_at":"2026-05-18T02:33:56Z"},{"alias_kind":"arxiv_version","alias_value":"0912.2592v1","created_at":"2026-05-18T02:33:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0912.2592","created_at":"2026-05-18T02:33:56Z"},{"alias_kind":"pith_short_12","alias_value":"6RNKYHOY5TZQ","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"6RNKYHOY5TZQALFY","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"6RNKYHOY","created_at":"2026-05-18T12:25:58Z"}],"graph_snapshots":[{"event_id":"sha256:538bab4a0154dbaf2ba8f38053b50b11e4ca768f18626ca6e1fdebbcb6cf5835","target":"graph","created_at":"2026-05-18T02:33:56Z","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 study the signatures of different coronal heating regimes on the differential emission measure (DEM) of multi-stranded coronal loops by means of hydrodynamic simulations. We consider heating either uniformly distributed along the loops or localized close to the chromospheric footpoints, in both steady and impulsive conditions. Our simulations show that condensation at the top of the loop forms when the localized heating is impulsive with a pulse cadence time shorter than the plasma cooling time, and the pulse energy is below a certain threshold. A condensation does not produce observable si","authors_text":"A. C. Lanzafame, A. F. Lanza, D. Spadaro, R. Susino","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-12-14T09:00:31Z","title":"Signatures of impulsive localized heating in the temperature distribution of multi-stranded coronal loops"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0912.2592","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":"sha256:2609f5a1695fb05403c277cf6d41bb3b225a27bf1fa2b8008a5319ec3ed4d104","target":"record","created_at":"2026-05-18T02:33:56Z","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":"6a42b85fc39cb0f45c5dd22ea9ed39f52127fa8de49e1cb0500847dbd5e138c7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-12-14T09:00:31Z","title_canon_sha256":"6c0f8330584949378fd392ee16621dcb99b98b84ffc6d3a7d1fdf33a6cc268d4"},"schema_version":"1.0","source":{"id":"0912.2592","kind":"arxiv","version":1}},"canonical_sha256":"f45aac1dd8ecf3002cb8cf603f46c04469c0fa38c570117322aba2f26476e4b5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f45aac1dd8ecf3002cb8cf603f46c04469c0fa38c570117322aba2f26476e4b5","first_computed_at":"2026-05-18T02:33:56.647082Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:33:56.647082Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"nv0P9jj322qp3vcXgBdDB1mrbe5ZjlN+lb6SCr53zGxrNNAzSGYNDifRcgYt3kA2WDRhuyfCVUx02f7liUIKDA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:33:56.647448Z","signed_message":"canonical_sha256_bytes"},"source_id":"0912.2592","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2609f5a1695fb05403c277cf6d41bb3b225a27bf1fa2b8008a5319ec3ed4d104","sha256:538bab4a0154dbaf2ba8f38053b50b11e4ca768f18626ca6e1fdebbcb6cf5835"],"state_sha256":"7127d5eb5e2837825febadd61f485a1e756dec490e0425e4a5d82e7129567bef"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sESRbY5tb0t3vuwXF5IERIU8cRbw3rbHBl7JcYxXy1LpAMycyYvBBnKEmwP5weXAvtBwowybW1zQgExA253LAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T07:00:22.791014Z","bundle_sha256":"6c60aebc982277484f6b272a94bd4e4a121a7aeaf8c198e33c4f3c29124817e8"}}