{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:2ELUWPT4RMFDYHXU4KXLVHMVWE","short_pith_number":"pith:2ELUWPT4","canonical_record":{"source":{"id":"1703.03053","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2017-03-08T22:06:37Z","cross_cats_sorted":[],"title_canon_sha256":"4a7d2189ec95c34d5e07ca7b499e08680b60036d63b9a8167704e74925acc8b9","abstract_canon_sha256":"0ce1eb11676c8544d6caf5496adc81096b6c4d9d2a02ab2d92e6d8c0c701bc5c"},"schema_version":"1.0"},"canonical_sha256":"d1174b3e7c8b0a3c1ef4e2aeba9d95b1327afc3af2aefb5823dc571a885c24b9","source":{"kind":"arxiv","id":"1703.03053","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1703.03053","created_at":"2026-05-18T00:41:36Z"},{"alias_kind":"arxiv_version","alias_value":"1703.03053v1","created_at":"2026-05-18T00:41:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1703.03053","created_at":"2026-05-18T00:41:36Z"},{"alias_kind":"pith_short_12","alias_value":"2ELUWPT4RMFD","created_at":"2026-05-18T12:30:55Z"},{"alias_kind":"pith_short_16","alias_value":"2ELUWPT4RMFDYHXU","created_at":"2026-05-18T12:30:55Z"},{"alias_kind":"pith_short_8","alias_value":"2ELUWPT4","created_at":"2026-05-18T12:30:55Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:2ELUWPT4RMFDYHXU4KXLVHMVWE","target":"record","payload":{"canonical_record":{"source":{"id":"1703.03053","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2017-03-08T22:06:37Z","cross_cats_sorted":[],"title_canon_sha256":"4a7d2189ec95c34d5e07ca7b499e08680b60036d63b9a8167704e74925acc8b9","abstract_canon_sha256":"0ce1eb11676c8544d6caf5496adc81096b6c4d9d2a02ab2d92e6d8c0c701bc5c"},"schema_version":"1.0"},"canonical_sha256":"d1174b3e7c8b0a3c1ef4e2aeba9d95b1327afc3af2aefb5823dc571a885c24b9","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:41:36.508672Z","signature_b64":"8S0qCibFBAWUrtOfXorIRb23V+Y4bE23V1RgTR1auJtwLkw4n0ZIefkgcgHNyItOwpNKiiaOXoQHYWPd2OmmBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d1174b3e7c8b0a3c1ef4e2aeba9d95b1327afc3af2aefb5823dc571a885c24b9","last_reissued_at":"2026-05-18T00:41:36.507962Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:41:36.507962Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1703.03053","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":"2026-05-18T00:41:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"x2J9M9gKsIDzo+AEN3SX7+AEivanXnZJVKmjdsUAFlobOa/6ENkLm3xSQ0jUB06u3vSDjI6eqlh0yciM5JkWCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T10:21:32.943546Z"},"content_sha256":"d1a70cf3ca10c4d810a314c44f19bf798a23a6910bfb608963b3a4a6a7e9a849","schema_version":"1.0","event_id":"sha256:d1a70cf3ca10c4d810a314c44f19bf798a23a6910bfb608963b3a4a6a7e9a849"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:2ELUWPT4RMFDYHXU4KXLVHMVWE","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Impact Erosion Model for Gravity-Dominated Planetesimals","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"H. Genda, H. Kobayashi, H. Tanaka, R. Suetsugu, T. Fujita, Y. Abe","submitted_at":"2017-03-08T22:06:37Z","abstract_excerpt":"Disruptive collisions have been regarded as an important process for planet formation, while non-disruptive, small-scale collisions (hereafter called erosive collisions) have been underestimated or neglected by many studies. However, recent studies have suggested that erosive collisions are also important to the growth of planets, because they are much more frequent than disruptive collisions. Although the thresholds of the specific impact energy for disruptive collisions (Q_RD^*) have been investigated well, there is no reliable model for erosive collisions. In this study, we systematically c"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1703.03053","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":"2026-05-18T00:41:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HafFE6vL9WxN0TjZPNqSsdueA8S3byTNC4cYS2Z1WvkU377hpwqcG21WGWcbyXLudtoivI3lWWZpN1eOqDKbAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T10:21:32.943909Z"},"content_sha256":"e6592dee4e4724cd1f245c2e4b58898d80585a6ecf9f09add641e6e598b3c194","schema_version":"1.0","event_id":"sha256:e6592dee4e4724cd1f245c2e4b58898d80585a6ecf9f09add641e6e598b3c194"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2ELUWPT4RMFDYHXU4KXLVHMVWE/bundle.json","state_url":"https://pith.science/pith/2ELUWPT4RMFDYHXU4KXLVHMVWE/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2ELUWPT4RMFDYHXU4KXLVHMVWE/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":"2026-06-08T10:21:32Z","links":{"resolver":"https://pith.science/pith/2ELUWPT4RMFDYHXU4KXLVHMVWE","bundle":"https://pith.science/pith/2ELUWPT4RMFDYHXU4KXLVHMVWE/bundle.json","state":"https://pith.science/pith/2ELUWPT4RMFDYHXU4KXLVHMVWE/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2ELUWPT4RMFDYHXU4KXLVHMVWE/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:2ELUWPT4RMFDYHXU4KXLVHMVWE","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":"0ce1eb11676c8544d6caf5496adc81096b6c4d9d2a02ab2d92e6d8c0c701bc5c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2017-03-08T22:06:37Z","title_canon_sha256":"4a7d2189ec95c34d5e07ca7b499e08680b60036d63b9a8167704e74925acc8b9"},"schema_version":"1.0","source":{"id":"1703.03053","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1703.03053","created_at":"2026-05-18T00:41:36Z"},{"alias_kind":"arxiv_version","alias_value":"1703.03053v1","created_at":"2026-05-18T00:41:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1703.03053","created_at":"2026-05-18T00:41:36Z"},{"alias_kind":"pith_short_12","alias_value":"2ELUWPT4RMFD","created_at":"2026-05-18T12:30:55Z"},{"alias_kind":"pith_short_16","alias_value":"2ELUWPT4RMFDYHXU","created_at":"2026-05-18T12:30:55Z"},{"alias_kind":"pith_short_8","alias_value":"2ELUWPT4","created_at":"2026-05-18T12:30:55Z"}],"graph_snapshots":[{"event_id":"sha256:e6592dee4e4724cd1f245c2e4b58898d80585a6ecf9f09add641e6e598b3c194","target":"graph","created_at":"2026-05-18T00:41:36Z","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":"Disruptive collisions have been regarded as an important process for planet formation, while non-disruptive, small-scale collisions (hereafter called erosive collisions) have been underestimated or neglected by many studies. However, recent studies have suggested that erosive collisions are also important to the growth of planets, because they are much more frequent than disruptive collisions. Although the thresholds of the specific impact energy for disruptive collisions (Q_RD^*) have been investigated well, there is no reliable model for erosive collisions. In this study, we systematically c","authors_text":"H. Genda, H. Kobayashi, H. Tanaka, R. Suetsugu, T. Fujita, Y. Abe","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2017-03-08T22:06:37Z","title":"Impact Erosion Model for Gravity-Dominated Planetesimals"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1703.03053","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:d1a70cf3ca10c4d810a314c44f19bf798a23a6910bfb608963b3a4a6a7e9a849","target":"record","created_at":"2026-05-18T00:41:36Z","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":"0ce1eb11676c8544d6caf5496adc81096b6c4d9d2a02ab2d92e6d8c0c701bc5c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2017-03-08T22:06:37Z","title_canon_sha256":"4a7d2189ec95c34d5e07ca7b499e08680b60036d63b9a8167704e74925acc8b9"},"schema_version":"1.0","source":{"id":"1703.03053","kind":"arxiv","version":1}},"canonical_sha256":"d1174b3e7c8b0a3c1ef4e2aeba9d95b1327afc3af2aefb5823dc571a885c24b9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d1174b3e7c8b0a3c1ef4e2aeba9d95b1327afc3af2aefb5823dc571a885c24b9","first_computed_at":"2026-05-18T00:41:36.507962Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:41:36.507962Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"8S0qCibFBAWUrtOfXorIRb23V+Y4bE23V1RgTR1auJtwLkw4n0ZIefkgcgHNyItOwpNKiiaOXoQHYWPd2OmmBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:41:36.508672Z","signed_message":"canonical_sha256_bytes"},"source_id":"1703.03053","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d1a70cf3ca10c4d810a314c44f19bf798a23a6910bfb608963b3a4a6a7e9a849","sha256:e6592dee4e4724cd1f245c2e4b58898d80585a6ecf9f09add641e6e598b3c194"],"state_sha256":"2d6ebcf525aeb2af2119eb9b5c1176f569646bad1e404b171fbe92a45a9c89d0"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Qz+kAp2+jTCCysLArFGCrUBUGCO8JXkUZXN1vQSfDQjZFwehr/qEFtLbnEvUoHPQUAS9+P2F6jppkw2i1W6xAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-08T10:21:32.945893Z","bundle_sha256":"aa1ff03bccf308e9cdd08064ec83ae3e3c9432f02f61722ebe311864416bd074"}}