{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:PPVU5QIVXL7N2M5GPRAE7YA74R","short_pith_number":"pith:PPVU5QIV","canonical_record":{"source":{"id":"1802.06206","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-02-17T07:54:11Z","cross_cats_sorted":[],"title_canon_sha256":"09f632f9a7d4bf4dcc4072936e0b3e1a6e977d46511692e7d3b865903e562fbd","abstract_canon_sha256":"b275c7837fdb5382e6695ebc51c3a48fe302d37f876ff8eed403760e5d7c0e02"},"schema_version":"1.0"},"canonical_sha256":"7beb4ec115bafedd33a67c404fe01fe44a559b4b85bdfbb9cf451e153f62f8dd","source":{"kind":"arxiv","id":"1802.06206","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1802.06206","created_at":"2026-05-18T00:23:04Z"},{"alias_kind":"arxiv_version","alias_value":"1802.06206v1","created_at":"2026-05-18T00:23:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1802.06206","created_at":"2026-05-18T00:23:04Z"},{"alias_kind":"pith_short_12","alias_value":"PPVU5QIVXL7N","created_at":"2026-05-18T12:32:46Z"},{"alias_kind":"pith_short_16","alias_value":"PPVU5QIVXL7N2M5G","created_at":"2026-05-18T12:32:46Z"},{"alias_kind":"pith_short_8","alias_value":"PPVU5QIV","created_at":"2026-05-18T12:32:46Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:PPVU5QIVXL7N2M5GPRAE7YA74R","target":"record","payload":{"canonical_record":{"source":{"id":"1802.06206","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-02-17T07:54:11Z","cross_cats_sorted":[],"title_canon_sha256":"09f632f9a7d4bf4dcc4072936e0b3e1a6e977d46511692e7d3b865903e562fbd","abstract_canon_sha256":"b275c7837fdb5382e6695ebc51c3a48fe302d37f876ff8eed403760e5d7c0e02"},"schema_version":"1.0"},"canonical_sha256":"7beb4ec115bafedd33a67c404fe01fe44a559b4b85bdfbb9cf451e153f62f8dd","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:23:04.071532Z","signature_b64":"x/lYOLj89/GmPuBZgY3cJCx+p+e4qbKWog6Ig3u0Y75cEvuhP3CQbdzW0qzjXz1Yvg3sC71sxlZmzyrgp2UPDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7beb4ec115bafedd33a67c404fe01fe44a559b4b85bdfbb9cf451e153f62f8dd","last_reissued_at":"2026-05-18T00:23:04.070934Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:23:04.070934Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1802.06206","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":"2026-05-18T00:23:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zSj4fVqloZkPurePDTjF4sxI1lTKYALNwl84ECfasH0tsgeCpyTz4WlGa3CVFVejzlJQdwzbCJo7Ofq2MwQsDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T08:45:47.576774Z"},"content_sha256":"8c9b9c1bce236c13163ddfcdb4dfd31a7d1f1c92e4afb6e08c1d3913d563b3df","schema_version":"1.0","event_id":"sha256:8c9b9c1bce236c13163ddfcdb4dfd31a7d1f1c92e4afb6e08c1d3913d563b3df"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:PPVU5QIVXL7N2M5GPRAE7YA74R","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Observationally quantified reconnection providing a viable mechanism for active region coronal heating","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Dana W. Longcope, Kai E. Yang, M. D. Ding, Yang Guo","submitted_at":"2018-02-17T07:54:11Z","abstract_excerpt":"The heating of the Sun's corona has been explained by several different mechanisms including wave dissipation and magnetic reconnection. While both have been shown capable of supplying the requisite power, neither has been used in a quantitative model of observations fed by measured inputs. Here we show that impulsive reconnection is capable of producing an active region corona agreeing both qualitatively and quantitatively with extreme-ultraviolet observations. We calculate the heating power proportional to the velocity difference between magnetic footpoints and the photospheric plasma, calle"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1802.06206","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":"2026-05-18T00:23:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2dtOqpLWeERrBcG9ykLGhuJYyFqB1IqHXVxynoBU5j1thdbHpRol6f0jjtfIz9Ph6Wis/2CtUz7S+BurSS74DA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T08:45:47.577435Z"},"content_sha256":"5aeb5758c85ff7b515176e4e5c7c1433815f39fc854039c769b671314f1807cf","schema_version":"1.0","event_id":"sha256:5aeb5758c85ff7b515176e4e5c7c1433815f39fc854039c769b671314f1807cf"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/PPVU5QIVXL7N2M5GPRAE7YA74R/bundle.json","state_url":"https://pith.science/pith/PPVU5QIVXL7N2M5GPRAE7YA74R/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/PPVU5QIVXL7N2M5GPRAE7YA74R/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":"2026-05-30T08:45:47Z","links":{"resolver":"https://pith.science/pith/PPVU5QIVXL7N2M5GPRAE7YA74R","bundle":"https://pith.science/pith/PPVU5QIVXL7N2M5GPRAE7YA74R/bundle.json","state":"https://pith.science/pith/PPVU5QIVXL7N2M5GPRAE7YA74R/state.json","well_known_bundle":"https://pith.science/.well-known/pith/PPVU5QIVXL7N2M5GPRAE7YA74R/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:PPVU5QIVXL7N2M5GPRAE7YA74R","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":"b275c7837fdb5382e6695ebc51c3a48fe302d37f876ff8eed403760e5d7c0e02","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-02-17T07:54:11Z","title_canon_sha256":"09f632f9a7d4bf4dcc4072936e0b3e1a6e977d46511692e7d3b865903e562fbd"},"schema_version":"1.0","source":{"id":"1802.06206","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1802.06206","created_at":"2026-05-18T00:23:04Z"},{"alias_kind":"arxiv_version","alias_value":"1802.06206v1","created_at":"2026-05-18T00:23:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1802.06206","created_at":"2026-05-18T00:23:04Z"},{"alias_kind":"pith_short_12","alias_value":"PPVU5QIVXL7N","created_at":"2026-05-18T12:32:46Z"},{"alias_kind":"pith_short_16","alias_value":"PPVU5QIVXL7N2M5G","created_at":"2026-05-18T12:32:46Z"},{"alias_kind":"pith_short_8","alias_value":"PPVU5QIV","created_at":"2026-05-18T12:32:46Z"}],"graph_snapshots":[{"event_id":"sha256:5aeb5758c85ff7b515176e4e5c7c1433815f39fc854039c769b671314f1807cf","target":"graph","created_at":"2026-05-18T00:23:04Z","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 heating of the Sun's corona has been explained by several different mechanisms including wave dissipation and magnetic reconnection. While both have been shown capable of supplying the requisite power, neither has been used in a quantitative model of observations fed by measured inputs. Here we show that impulsive reconnection is capable of producing an active region corona agreeing both qualitatively and quantitatively with extreme-ultraviolet observations. We calculate the heating power proportional to the velocity difference between magnetic footpoints and the photospheric plasma, calle","authors_text":"Dana W. Longcope, Kai E. Yang, M. D. Ding, Yang Guo","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-02-17T07:54:11Z","title":"Observationally quantified reconnection providing a viable mechanism for active region coronal heating"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1802.06206","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":"sha256:8c9b9c1bce236c13163ddfcdb4dfd31a7d1f1c92e4afb6e08c1d3913d563b3df","target":"record","created_at":"2026-05-18T00:23:04Z","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":"b275c7837fdb5382e6695ebc51c3a48fe302d37f876ff8eed403760e5d7c0e02","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-02-17T07:54:11Z","title_canon_sha256":"09f632f9a7d4bf4dcc4072936e0b3e1a6e977d46511692e7d3b865903e562fbd"},"schema_version":"1.0","source":{"id":"1802.06206","kind":"arxiv","version":1}},"canonical_sha256":"7beb4ec115bafedd33a67c404fe01fe44a559b4b85bdfbb9cf451e153f62f8dd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7beb4ec115bafedd33a67c404fe01fe44a559b4b85bdfbb9cf451e153f62f8dd","first_computed_at":"2026-05-18T00:23:04.070934Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:23:04.070934Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"x/lYOLj89/GmPuBZgY3cJCx+p+e4qbKWog6Ig3u0Y75cEvuhP3CQbdzW0qzjXz1Yvg3sC71sxlZmzyrgp2UPDw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:23:04.071532Z","signed_message":"canonical_sha256_bytes"},"source_id":"1802.06206","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8c9b9c1bce236c13163ddfcdb4dfd31a7d1f1c92e4afb6e08c1d3913d563b3df","sha256:5aeb5758c85ff7b515176e4e5c7c1433815f39fc854039c769b671314f1807cf"],"state_sha256":"a41629e96d4fdc6e97730bced60d29112dc92685d0cbcddd10e5e91b76aed834"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rjVSiXinTM/TMH66aM0ATxLh3lrB48I7CB+QaggbKImjsKO9Ld8P8rwaXywImqWByQ93LmNcqXNmOE7Q9XqSBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T08:45:47.580706Z","bundle_sha256":"d9984965fd803c8790bb00ceef4c2696a7160d1053bd0b878ecd4635bd437d01"}}