{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2017:RCJAN73K2EC67QGX2FJSGD326A","short_pith_number":"pith:RCJAN73K","schema_version":"1.0","canonical_sha256":"889206ff6ad105efc0d7d153230f7af018433af7c94fb1701cd4ac8f9a22abb6","source":{"kind":"arxiv","id":"1706.04073","version":2},"attestation_state":"computed","paper":{"title":"Possible sublimation and dust activity on primitive NEAs: Example of (162173) Ryugu","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Andrei B. Makalkin, Faith Vilas, Vladimir V. Busarev","submitted_at":"2017-06-11T12:24:28Z","abstract_excerpt":"Because of relatively high surface temperatures and quick evolution of orbital parameters of near-Earth asteroids (NEAs) of primitive types, the possibility of retention of icy materials (predominately H2O ice) remains in question. Yet, based on summarized results of spectroscopic observations of Apollonian (162173) Ryugu (Cg-type) being a target of Japanese Hayabusa 2 space mission, we suspected a transient sublimation activity on the asteroid. However, unlike some main-belt primitive asteroids demonstrating sublimation of ices close to their perihelion distances and, respectively, at the hig"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1706.04073","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2017-06-11T12:24:28Z","cross_cats_sorted":[],"title_canon_sha256":"d570f4088569dfec31e56af04eec9113c8d577c0c4f698a3aa542968fcf21a67","abstract_canon_sha256":"4755d51cc2e0c76ef7882ed7dfdebaae5b6baa82c45a9e6593ea5bd28050bcce"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:26:56.989954Z","signature_b64":"9JgKsHSrEfuF8Vneca/+JCW+d8RLkqI14/Q4wsy6VAywHNPh7Dvdo/b7sUVEo7MAiad9z1sxi/6bhRyw6LSaCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"889206ff6ad105efc0d7d153230f7af018433af7c94fb1701cd4ac8f9a22abb6","last_reissued_at":"2026-05-18T00:26:56.989346Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:26:56.989346Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Possible sublimation and dust activity on primitive NEAs: Example of (162173) Ryugu","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Andrei B. Makalkin, Faith Vilas, Vladimir V. Busarev","submitted_at":"2017-06-11T12:24:28Z","abstract_excerpt":"Because of relatively high surface temperatures and quick evolution of orbital parameters of near-Earth asteroids (NEAs) of primitive types, the possibility of retention of icy materials (predominately H2O ice) remains in question. Yet, based on summarized results of spectroscopic observations of Apollonian (162173) Ryugu (Cg-type) being a target of Japanese Hayabusa 2 space mission, we suspected a transient sublimation activity on the asteroid. However, unlike some main-belt primitive asteroids demonstrating sublimation of ices close to their perihelion distances and, respectively, at the hig"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1706.04073","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1706.04073","created_at":"2026-05-18T00:26:56.989440+00:00"},{"alias_kind":"arxiv_version","alias_value":"1706.04073v2","created_at":"2026-05-18T00:26:56.989440+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1706.04073","created_at":"2026-05-18T00:26:56.989440+00:00"},{"alias_kind":"pith_short_12","alias_value":"RCJAN73K2EC6","created_at":"2026-05-18T12:31:39.905425+00:00"},{"alias_kind":"pith_short_16","alias_value":"RCJAN73K2EC67QGX","created_at":"2026-05-18T12:31:39.905425+00:00"},{"alias_kind":"pith_short_8","alias_value":"RCJAN73K","created_at":"2026-05-18T12:31:39.905425+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/RCJAN73K2EC67QGX2FJSGD326A","json":"https://pith.science/pith/RCJAN73K2EC67QGX2FJSGD326A.json","graph_json":"https://pith.science/api/pith-number/RCJAN73K2EC67QGX2FJSGD326A/graph.json","events_json":"https://pith.science/api/pith-number/RCJAN73K2EC67QGX2FJSGD326A/events.json","paper":"https://pith.science/paper/RCJAN73K"},"agent_actions":{"view_html":"https://pith.science/pith/RCJAN73K2EC67QGX2FJSGD326A","download_json":"https://pith.science/pith/RCJAN73K2EC67QGX2FJSGD326A.json","view_paper":"https://pith.science/paper/RCJAN73K","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1706.04073&json=true","fetch_graph":"https://pith.science/api/pith-number/RCJAN73K2EC67QGX2FJSGD326A/graph.json","fetch_events":"https://pith.science/api/pith-number/RCJAN73K2EC67QGX2FJSGD326A/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/RCJAN73K2EC67QGX2FJSGD326A/action/timestamp_anchor","attest_storage":"https://pith.science/pith/RCJAN73K2EC67QGX2FJSGD326A/action/storage_attestation","attest_author":"https://pith.science/pith/RCJAN73K2EC67QGX2FJSGD326A/action/author_attestation","sign_citation":"https://pith.science/pith/RCJAN73K2EC67QGX2FJSGD326A/action/citation_signature","submit_replication":"https://pith.science/pith/RCJAN73K2EC67QGX2FJSGD326A/action/replication_record"}},"created_at":"2026-05-18T00:26:56.989440+00:00","updated_at":"2026-05-18T00:26:56.989440+00:00"}