{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:5F5XSMX63XB3C4CJGWWSJC6F6F","short_pith_number":"pith:5F5XSMX6","canonical_record":{"source":{"id":"1302.4996","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-02-20T15:32:24Z","cross_cats_sorted":[],"title_canon_sha256":"90c620290596ca58802d2509511e7f8d5b6cde798022d018e2cc329ffef11655","abstract_canon_sha256":"4cb0caf5c8a648af30c4e8d80f8b55a5f3719f81cc5989a3d9b8cabb2b2ed18b"},"schema_version":"1.0"},"canonical_sha256":"e97b7932feddc3b1704935ad248bc5f169f826dfa0b4d436d411857e65ad0ed7","source":{"kind":"arxiv","id":"1302.4996","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1302.4996","created_at":"2026-05-18T03:32:44Z"},{"alias_kind":"arxiv_version","alias_value":"1302.4996v2","created_at":"2026-05-18T03:32:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1302.4996","created_at":"2026-05-18T03:32:44Z"},{"alias_kind":"pith_short_12","alias_value":"5F5XSMX63XB3","created_at":"2026-05-18T12:27:34Z"},{"alias_kind":"pith_short_16","alias_value":"5F5XSMX63XB3C4CJ","created_at":"2026-05-18T12:27:34Z"},{"alias_kind":"pith_short_8","alias_value":"5F5XSMX6","created_at":"2026-05-18T12:27:34Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:5F5XSMX63XB3C4CJGWWSJC6F6F","target":"record","payload":{"canonical_record":{"source":{"id":"1302.4996","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-02-20T15:32:24Z","cross_cats_sorted":[],"title_canon_sha256":"90c620290596ca58802d2509511e7f8d5b6cde798022d018e2cc329ffef11655","abstract_canon_sha256":"4cb0caf5c8a648af30c4e8d80f8b55a5f3719f81cc5989a3d9b8cabb2b2ed18b"},"schema_version":"1.0"},"canonical_sha256":"e97b7932feddc3b1704935ad248bc5f169f826dfa0b4d436d411857e65ad0ed7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:32:44.257371Z","signature_b64":"GArPw/cGje51bd2j9a72iriL3XjbpajHJQmb2zKx+b7kUyWfmuIAL4t8cF343ts08jix1h+d0nelMSFpKnWHDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e97b7932feddc3b1704935ad248bc5f169f826dfa0b4d436d411857e65ad0ed7","last_reissued_at":"2026-05-18T03:32:44.256357Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:32:44.256357Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1302.4996","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":"2026-05-18T03:32:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MHISZ5wUuHKCH+rk5Zrr8mCbNehZDi/C90k12yiWKp6aygSRGhplWVend1/MMUxI/FJxxdddNjxdyf/BqghsDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T11:49:08.392743Z"},"content_sha256":"b53f93edd9201e47be423b0436116afd1522ad16df90616332dd0a4bafb7e2d6","schema_version":"1.0","event_id":"sha256:b53f93edd9201e47be423b0436116afd1522ad16df90616332dd0a4bafb7e2d6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:5F5XSMX63XB3C4CJGWWSJC6F6F","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Validation of the effective masses calculated using finite difference method on a five-point stencil for inorganic and organic semiconductors","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Alexandr Fonari, Christopher Sutton","submitted_at":"2013-02-20T15:32:24Z","abstract_excerpt":"We present a code to calculate effective masses from energy dispersion relation using finite difference method on a five-point stencil. We validate our code against inorganic (GaAs and InP) and organic (pentacene and rubrene) crystals."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1302.4996","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":"2026-05-18T03:32:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Z3LtdRE0nj2QoXl8M2OW4jEmFlo3aOe9AadoxLCv76Uyrs8mYCeLq2KLt1Ijw+LLCGXFYr58Yy7bBuoEyUeBCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T11:49:08.393415Z"},"content_sha256":"e903a769368f0905e7f4d9b9d712f161030ae3eb08cca444d8b3e37be1125340","schema_version":"1.0","event_id":"sha256:e903a769368f0905e7f4d9b9d712f161030ae3eb08cca444d8b3e37be1125340"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/5F5XSMX63XB3C4CJGWWSJC6F6F/bundle.json","state_url":"https://pith.science/pith/5F5XSMX63XB3C4CJGWWSJC6F6F/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/5F5XSMX63XB3C4CJGWWSJC6F6F/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":"2026-06-07T11:49:08Z","links":{"resolver":"https://pith.science/pith/5F5XSMX63XB3C4CJGWWSJC6F6F","bundle":"https://pith.science/pith/5F5XSMX63XB3C4CJGWWSJC6F6F/bundle.json","state":"https://pith.science/pith/5F5XSMX63XB3C4CJGWWSJC6F6F/state.json","well_known_bundle":"https://pith.science/.well-known/pith/5F5XSMX63XB3C4CJGWWSJC6F6F/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:5F5XSMX63XB3C4CJGWWSJC6F6F","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":"4cb0caf5c8a648af30c4e8d80f8b55a5f3719f81cc5989a3d9b8cabb2b2ed18b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-02-20T15:32:24Z","title_canon_sha256":"90c620290596ca58802d2509511e7f8d5b6cde798022d018e2cc329ffef11655"},"schema_version":"1.0","source":{"id":"1302.4996","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1302.4996","created_at":"2026-05-18T03:32:44Z"},{"alias_kind":"arxiv_version","alias_value":"1302.4996v2","created_at":"2026-05-18T03:32:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1302.4996","created_at":"2026-05-18T03:32:44Z"},{"alias_kind":"pith_short_12","alias_value":"5F5XSMX63XB3","created_at":"2026-05-18T12:27:34Z"},{"alias_kind":"pith_short_16","alias_value":"5F5XSMX63XB3C4CJ","created_at":"2026-05-18T12:27:34Z"},{"alias_kind":"pith_short_8","alias_value":"5F5XSMX6","created_at":"2026-05-18T12:27:34Z"}],"graph_snapshots":[{"event_id":"sha256:e903a769368f0905e7f4d9b9d712f161030ae3eb08cca444d8b3e37be1125340","target":"graph","created_at":"2026-05-18T03:32:44Z","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 present a code to calculate effective masses from energy dispersion relation using finite difference method on a five-point stencil. We validate our code against inorganic (GaAs and InP) and organic (pentacene and rubrene) crystals.","authors_text":"Alexandr Fonari, Christopher Sutton","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-02-20T15:32:24Z","title":"Validation of the effective masses calculated using finite difference method on a five-point stencil for inorganic and organic semiconductors"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1302.4996","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:b53f93edd9201e47be423b0436116afd1522ad16df90616332dd0a4bafb7e2d6","target":"record","created_at":"2026-05-18T03:32:44Z","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":"4cb0caf5c8a648af30c4e8d80f8b55a5f3719f81cc5989a3d9b8cabb2b2ed18b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-02-20T15:32:24Z","title_canon_sha256":"90c620290596ca58802d2509511e7f8d5b6cde798022d018e2cc329ffef11655"},"schema_version":"1.0","source":{"id":"1302.4996","kind":"arxiv","version":2}},"canonical_sha256":"e97b7932feddc3b1704935ad248bc5f169f826dfa0b4d436d411857e65ad0ed7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e97b7932feddc3b1704935ad248bc5f169f826dfa0b4d436d411857e65ad0ed7","first_computed_at":"2026-05-18T03:32:44.256357Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:32:44.256357Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"GArPw/cGje51bd2j9a72iriL3XjbpajHJQmb2zKx+b7kUyWfmuIAL4t8cF343ts08jix1h+d0nelMSFpKnWHDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T03:32:44.257371Z","signed_message":"canonical_sha256_bytes"},"source_id":"1302.4996","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b53f93edd9201e47be423b0436116afd1522ad16df90616332dd0a4bafb7e2d6","sha256:e903a769368f0905e7f4d9b9d712f161030ae3eb08cca444d8b3e37be1125340"],"state_sha256":"43ed62cf218b2a8169e7d41b47559340d8e82b83a04d0004f3691dad9faf2f86"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Ur1RKhliJrHhKxzZk9/PoSJGbVnfRy6Cmj+UuNz8Ny5SimU7bkTG1/NPUjYv7xep7xgfhFj2WuuCyPKEZbpsCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-07T11:49:08.396724Z","bundle_sha256":"da1ca91247aa64ba80c42873b8253f7d9c8a154ceb15834397012823d51c6a96"}}