{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:BPE5PJ23WOP5UELTOMZVKZROOP","short_pith_number":"pith:BPE5PJ23","canonical_record":{"source":{"id":"1109.1037","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-09-06T01:11:45Z","cross_cats_sorted":["physics.space-ph"],"title_canon_sha256":"610a664511e787940df6c544c3537f128fc65141bfd6529abaf2512f657ffa5b","abstract_canon_sha256":"c47d3f4c6f351a3e90a91f89512359282c1931e71be193d4b3d4eb1defdd91a8"},"schema_version":"1.0"},"canonical_sha256":"0bc9d7a75bb39fda1173733355662e73ef6c8cef03d4cdd4f626b998358b5233","source":{"kind":"arxiv","id":"1109.1037","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1109.1037","created_at":"2026-05-18T04:14:05Z"},{"alias_kind":"arxiv_version","alias_value":"1109.1037v1","created_at":"2026-05-18T04:14:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1109.1037","created_at":"2026-05-18T04:14:05Z"},{"alias_kind":"pith_short_12","alias_value":"BPE5PJ23WOP5","created_at":"2026-05-18T12:26:24Z"},{"alias_kind":"pith_short_16","alias_value":"BPE5PJ23WOP5UELT","created_at":"2026-05-18T12:26:24Z"},{"alias_kind":"pith_short_8","alias_value":"BPE5PJ23","created_at":"2026-05-18T12:26:24Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:BPE5PJ23WOP5UELTOMZVKZROOP","target":"record","payload":{"canonical_record":{"source":{"id":"1109.1037","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-09-06T01:11:45Z","cross_cats_sorted":["physics.space-ph"],"title_canon_sha256":"610a664511e787940df6c544c3537f128fc65141bfd6529abaf2512f657ffa5b","abstract_canon_sha256":"c47d3f4c6f351a3e90a91f89512359282c1931e71be193d4b3d4eb1defdd91a8"},"schema_version":"1.0"},"canonical_sha256":"0bc9d7a75bb39fda1173733355662e73ef6c8cef03d4cdd4f626b998358b5233","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:14:05.560592Z","signature_b64":"ySbNAsZrGKneUAlZZEur50cZ0pPeRie6gYlJBNFUM02cAdRxQg4JUtbJpgazOd4BfWvgmBVJUdjreKIIiWeLDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0bc9d7a75bb39fda1173733355662e73ef6c8cef03d4cdd4f626b998358b5233","last_reissued_at":"2026-05-18T04:14:05.560035Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:14:05.560035Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1109.1037","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":"2026-05-18T04:14:05Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vUa2bTCKZaJvMNdkZ/fKbRER51R6w3sP2y9Lcvq/0Xu4z3Ve81ZZytyV/6J5T55C4SB0mbdniVx6CkV+IyRKDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T23:17:17.148201Z"},"content_sha256":"adff4683f53e83e0aebe541fdcb6b9c960420c82cfb3e1a70ffe622cc85aefd7","schema_version":"1.0","event_id":"sha256:adff4683f53e83e0aebe541fdcb6b9c960420c82cfb3e1a70ffe622cc85aefd7"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:BPE5PJ23WOP5UELTOMZVKZROOP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A Constrained Tectonics Model for Coronal Heating","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.space-ph"],"primary_cat":"astro-ph.SR","authors_text":"A. Bhattacharjee, C. S. Ng","submitted_at":"2011-09-06T01:11:45Z","abstract_excerpt":"An analytical and numerical treatment is given of a constrained version of the tectonics model developed by Priest, Heyvaerts, & Title [2002]. We begin with an initial uniform magnetic field ${\\bf B} = B_0 \\hat{\\bf z}$ that is line-tied at the surfaces $z = 0$ and $z = L$. This initial configuration is twisted by photospheric footpoint motion that is assumed to depend on only one coordinate ($x$) transverse to the initial magnetic field. The geometric constraints imposed by our assumption precludes the occurrence of reconnection and secondary instabilities, but enables us to follow for long ti"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1109.1037","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":"2026-05-18T04:14:05Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JtqkD+7FebzyE8A+UeXPZTHpB4ARgMTry3ibzAp45cz4QewVVlo9zP4WOnxHpt5RW3jnJjfpTv0hNMnLbaY8CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T23:17:17.148572Z"},"content_sha256":"05149fb51324e44adafb1e06e72ea7947a52066c03e07ab21e601e33f6804b1b","schema_version":"1.0","event_id":"sha256:05149fb51324e44adafb1e06e72ea7947a52066c03e07ab21e601e33f6804b1b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/BPE5PJ23WOP5UELTOMZVKZROOP/bundle.json","state_url":"https://pith.science/pith/BPE5PJ23WOP5UELTOMZVKZROOP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/BPE5PJ23WOP5UELTOMZVKZROOP/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":"2026-06-03T23:17:17Z","links":{"resolver":"https://pith.science/pith/BPE5PJ23WOP5UELTOMZVKZROOP","bundle":"https://pith.science/pith/BPE5PJ23WOP5UELTOMZVKZROOP/bundle.json","state":"https://pith.science/pith/BPE5PJ23WOP5UELTOMZVKZROOP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/BPE5PJ23WOP5UELTOMZVKZROOP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:BPE5PJ23WOP5UELTOMZVKZROOP","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":"c47d3f4c6f351a3e90a91f89512359282c1931e71be193d4b3d4eb1defdd91a8","cross_cats_sorted":["physics.space-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-09-06T01:11:45Z","title_canon_sha256":"610a664511e787940df6c544c3537f128fc65141bfd6529abaf2512f657ffa5b"},"schema_version":"1.0","source":{"id":"1109.1037","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1109.1037","created_at":"2026-05-18T04:14:05Z"},{"alias_kind":"arxiv_version","alias_value":"1109.1037v1","created_at":"2026-05-18T04:14:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1109.1037","created_at":"2026-05-18T04:14:05Z"},{"alias_kind":"pith_short_12","alias_value":"BPE5PJ23WOP5","created_at":"2026-05-18T12:26:24Z"},{"alias_kind":"pith_short_16","alias_value":"BPE5PJ23WOP5UELT","created_at":"2026-05-18T12:26:24Z"},{"alias_kind":"pith_short_8","alias_value":"BPE5PJ23","created_at":"2026-05-18T12:26:24Z"}],"graph_snapshots":[{"event_id":"sha256:05149fb51324e44adafb1e06e72ea7947a52066c03e07ab21e601e33f6804b1b","target":"graph","created_at":"2026-05-18T04:14:05Z","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":"An analytical and numerical treatment is given of a constrained version of the tectonics model developed by Priest, Heyvaerts, & Title [2002]. We begin with an initial uniform magnetic field ${\\bf B} = B_0 \\hat{\\bf z}$ that is line-tied at the surfaces $z = 0$ and $z = L$. This initial configuration is twisted by photospheric footpoint motion that is assumed to depend on only one coordinate ($x$) transverse to the initial magnetic field. The geometric constraints imposed by our assumption precludes the occurrence of reconnection and secondary instabilities, but enables us to follow for long ti","authors_text":"A. Bhattacharjee, C. S. Ng","cross_cats":["physics.space-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-09-06T01:11:45Z","title":"A Constrained Tectonics Model for Coronal Heating"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1109.1037","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:adff4683f53e83e0aebe541fdcb6b9c960420c82cfb3e1a70ffe622cc85aefd7","target":"record","created_at":"2026-05-18T04:14:05Z","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":"c47d3f4c6f351a3e90a91f89512359282c1931e71be193d4b3d4eb1defdd91a8","cross_cats_sorted":["physics.space-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-09-06T01:11:45Z","title_canon_sha256":"610a664511e787940df6c544c3537f128fc65141bfd6529abaf2512f657ffa5b"},"schema_version":"1.0","source":{"id":"1109.1037","kind":"arxiv","version":1}},"canonical_sha256":"0bc9d7a75bb39fda1173733355662e73ef6c8cef03d4cdd4f626b998358b5233","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0bc9d7a75bb39fda1173733355662e73ef6c8cef03d4cdd4f626b998358b5233","first_computed_at":"2026-05-18T04:14:05.560035Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:14:05.560035Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ySbNAsZrGKneUAlZZEur50cZ0pPeRie6gYlJBNFUM02cAdRxQg4JUtbJpgazOd4BfWvgmBVJUdjreKIIiWeLDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T04:14:05.560592Z","signed_message":"canonical_sha256_bytes"},"source_id":"1109.1037","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:adff4683f53e83e0aebe541fdcb6b9c960420c82cfb3e1a70ffe622cc85aefd7","sha256:05149fb51324e44adafb1e06e72ea7947a52066c03e07ab21e601e33f6804b1b"],"state_sha256":"0e42c8902678aecb29879b0c9669210c1a58bdd3599b00bb70642caa156cc171"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5R8EZOVew7qNlffCqtwM3a8XduruQwiJSrxbut9ZnlzZomBoy7lU9+quxg3AyREjKJEGWWVhNAGwUzrhmXyfDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T23:17:17.150489Z","bundle_sha256":"d403dbc03862b3ee48ef6d96a8e3758bda61256505d7df4d887c6f96af08c728"}}