{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:3HZIW76MNUPB24XT445KJ5EI2X","short_pith_number":"pith:3HZIW76M","canonical_record":{"source":{"id":"1212.6048","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GR","submitted_at":"2012-12-25T13:23:32Z","cross_cats_sorted":["physics.geo-ph"],"title_canon_sha256":"da1899f58483ae0685ba3ca330b8ffe4c89448e3dd8fab93b6c57e331965d85f","abstract_canon_sha256":"8e9785ed5cb57f454984bcebe646a7f0cf757e38d3f4cf827d9e94f98049e018"},"schema_version":"1.0"},"canonical_sha256":"d9f28b7fcc6d1e1d72f3e73aa4f488d5c1ae09ba60e23e6c7657188d94eab314","source":{"kind":"arxiv","id":"1212.6048","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1212.6048","created_at":"2026-05-18T03:14:39Z"},{"alias_kind":"arxiv_version","alias_value":"1212.6048v1","created_at":"2026-05-18T03:14:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1212.6048","created_at":"2026-05-18T03:14:39Z"},{"alias_kind":"pith_short_12","alias_value":"3HZIW76MNUPB","created_at":"2026-05-18T12:26:50Z"},{"alias_kind":"pith_short_16","alias_value":"3HZIW76MNUPB24XT","created_at":"2026-05-18T12:26:50Z"},{"alias_kind":"pith_short_8","alias_value":"3HZIW76M","created_at":"2026-05-18T12:26:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:3HZIW76MNUPB24XT445KJ5EI2X","target":"record","payload":{"canonical_record":{"source":{"id":"1212.6048","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GR","submitted_at":"2012-12-25T13:23:32Z","cross_cats_sorted":["physics.geo-ph"],"title_canon_sha256":"da1899f58483ae0685ba3ca330b8ffe4c89448e3dd8fab93b6c57e331965d85f","abstract_canon_sha256":"8e9785ed5cb57f454984bcebe646a7f0cf757e38d3f4cf827d9e94f98049e018"},"schema_version":"1.0"},"canonical_sha256":"d9f28b7fcc6d1e1d72f3e73aa4f488d5c1ae09ba60e23e6c7657188d94eab314","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:14:39.247723Z","signature_b64":"z/PpnqdFN77gzpiX6RldGa+M/HN/6kPmiChjvvzIfVXRziKUMFNhaEnQK1PKhBgAr9u8vvDzyc1lNGKZYUfhCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d9f28b7fcc6d1e1d72f3e73aa4f488d5c1ae09ba60e23e6c7657188d94eab314","last_reissued_at":"2026-05-18T03:14:39.246961Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:14:39.246961Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1212.6048","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":"2026-05-18T03:14:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fFhGK4T6wtklWiQNXgRK+WjLliXxu5dFy/p/qNraYOYpawxrSErZK0NOURmSxdfxAQBd/598Kwg6c+vNqbeLCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T22:59:19.656081Z"},"content_sha256":"af952d0af92fe6e4774ada1dc3fa6ffa38f88121cd7ff4e041cf5f6e29347338","schema_version":"1.0","event_id":"sha256:af952d0af92fe6e4774ada1dc3fa6ffa38f88121cd7ff4e041cf5f6e29347338"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:3HZIW76MNUPB24XT445KJ5EI2X","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Discrete Surface Modeling Based on Google Earth: A Case Study","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.geo-ph"],"primary_cat":"cs.GR","authors_text":"Gang Mei, John C.Tipper, Nengxiong Xu","submitted_at":"2012-12-25T13:23:32Z","abstract_excerpt":"Google Earth (GE) has become a powerful tool for geological, geophysical and geographical modeling; yet GE can be accepted to acquire elevation data of terrain. In this paper, we present a real study case of building the discrete surface model (DSM) at Haut-Barr Castle in France based on the elevation data of terrain points extracted from GE using the COM API. We first locate the position of Haut-Barr Castle and determine the region of the study area, then extract elevation data of terrain at Haut-Barr, and thirdly create a planar triangular mesh that covers the study area and finally generate"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1212.6048","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":"2026-05-18T03:14:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"f4Sn2FvqkkB5cooSNlZLuBrCIghMoD1HF/u2i9qAK8y9yjS8+8m0WnFg9ZHVcp67f2zViIcx6b+nI7S/6HgmAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T22:59:19.656457Z"},"content_sha256":"3783939d6bac86c41ed2c41d875ede12a899162b07b4b716b53f779d850a0568","schema_version":"1.0","event_id":"sha256:3783939d6bac86c41ed2c41d875ede12a899162b07b4b716b53f779d850a0568"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3HZIW76MNUPB24XT445KJ5EI2X/bundle.json","state_url":"https://pith.science/pith/3HZIW76MNUPB24XT445KJ5EI2X/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3HZIW76MNUPB24XT445KJ5EI2X/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":"2026-06-02T22:59:19Z","links":{"resolver":"https://pith.science/pith/3HZIW76MNUPB24XT445KJ5EI2X","bundle":"https://pith.science/pith/3HZIW76MNUPB24XT445KJ5EI2X/bundle.json","state":"https://pith.science/pith/3HZIW76MNUPB24XT445KJ5EI2X/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3HZIW76MNUPB24XT445KJ5EI2X/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:3HZIW76MNUPB24XT445KJ5EI2X","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":"8e9785ed5cb57f454984bcebe646a7f0cf757e38d3f4cf827d9e94f98049e018","cross_cats_sorted":["physics.geo-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GR","submitted_at":"2012-12-25T13:23:32Z","title_canon_sha256":"da1899f58483ae0685ba3ca330b8ffe4c89448e3dd8fab93b6c57e331965d85f"},"schema_version":"1.0","source":{"id":"1212.6048","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1212.6048","created_at":"2026-05-18T03:14:39Z"},{"alias_kind":"arxiv_version","alias_value":"1212.6048v1","created_at":"2026-05-18T03:14:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1212.6048","created_at":"2026-05-18T03:14:39Z"},{"alias_kind":"pith_short_12","alias_value":"3HZIW76MNUPB","created_at":"2026-05-18T12:26:50Z"},{"alias_kind":"pith_short_16","alias_value":"3HZIW76MNUPB24XT","created_at":"2026-05-18T12:26:50Z"},{"alias_kind":"pith_short_8","alias_value":"3HZIW76M","created_at":"2026-05-18T12:26:50Z"}],"graph_snapshots":[{"event_id":"sha256:3783939d6bac86c41ed2c41d875ede12a899162b07b4b716b53f779d850a0568","target":"graph","created_at":"2026-05-18T03:14:39Z","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":"Google Earth (GE) has become a powerful tool for geological, geophysical and geographical modeling; yet GE can be accepted to acquire elevation data of terrain. In this paper, we present a real study case of building the discrete surface model (DSM) at Haut-Barr Castle in France based on the elevation data of terrain points extracted from GE using the COM API. We first locate the position of Haut-Barr Castle and determine the region of the study area, then extract elevation data of terrain at Haut-Barr, and thirdly create a planar triangular mesh that covers the study area and finally generate","authors_text":"Gang Mei, John C.Tipper, Nengxiong Xu","cross_cats":["physics.geo-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GR","submitted_at":"2012-12-25T13:23:32Z","title":"Discrete Surface Modeling Based on Google Earth: A Case Study"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1212.6048","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:af952d0af92fe6e4774ada1dc3fa6ffa38f88121cd7ff4e041cf5f6e29347338","target":"record","created_at":"2026-05-18T03:14:39Z","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":"8e9785ed5cb57f454984bcebe646a7f0cf757e38d3f4cf827d9e94f98049e018","cross_cats_sorted":["physics.geo-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GR","submitted_at":"2012-12-25T13:23:32Z","title_canon_sha256":"da1899f58483ae0685ba3ca330b8ffe4c89448e3dd8fab93b6c57e331965d85f"},"schema_version":"1.0","source":{"id":"1212.6048","kind":"arxiv","version":1}},"canonical_sha256":"d9f28b7fcc6d1e1d72f3e73aa4f488d5c1ae09ba60e23e6c7657188d94eab314","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d9f28b7fcc6d1e1d72f3e73aa4f488d5c1ae09ba60e23e6c7657188d94eab314","first_computed_at":"2026-05-18T03:14:39.246961Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:14:39.246961Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"z/PpnqdFN77gzpiX6RldGa+M/HN/6kPmiChjvvzIfVXRziKUMFNhaEnQK1PKhBgAr9u8vvDzyc1lNGKZYUfhCg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:14:39.247723Z","signed_message":"canonical_sha256_bytes"},"source_id":"1212.6048","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:af952d0af92fe6e4774ada1dc3fa6ffa38f88121cd7ff4e041cf5f6e29347338","sha256:3783939d6bac86c41ed2c41d875ede12a899162b07b4b716b53f779d850a0568"],"state_sha256":"f864a5dba649cf345958d565749a2d3255dd847f55bc176cd10b8d5721c825b4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BfjwYI8H9jNhNTz9Z6sGkQb5scbjY9+HKCQK+aQ4CmYp4S1reU6CEsHvDrAc42jY8yrDNzFvAayK+5cGDGeBBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T22:59:19.658470Z","bundle_sha256":"ca83d70cdd0bc87b7aec20556c5c7a1858a05e9ac9227387e449a1f127dbb5ff"}}