{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:FFL7DHRXGLR3DDGCIHQSHAXNCQ","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":"26964ca4ead300798b9d1d3751f90f5880df8d9397ef0e2278348324ad7caef3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2017-10-27T03:34:14Z","title_canon_sha256":"18731bb9597db7fec4bf30bfe8a3ab49090037faf73c809d44131a37360ea046"},"schema_version":"1.0","source":{"id":"1710.09977","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1710.09977","created_at":"2026-05-18T00:31:30Z"},{"alias_kind":"arxiv_version","alias_value":"1710.09977v2","created_at":"2026-05-18T00:31:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1710.09977","created_at":"2026-05-18T00:31:30Z"},{"alias_kind":"pith_short_12","alias_value":"FFL7DHRXGLR3","created_at":"2026-05-18T12:31:15Z"},{"alias_kind":"pith_short_16","alias_value":"FFL7DHRXGLR3DDGC","created_at":"2026-05-18T12:31:15Z"},{"alias_kind":"pith_short_8","alias_value":"FFL7DHRX","created_at":"2026-05-18T12:31:15Z"}],"graph_snapshots":[{"event_id":"sha256:7628db703e86890c288fa86ccecadfa31d94c5c709643ecc980548b8b1c0f523","target":"graph","created_at":"2026-05-18T00:31:30Z","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 optical spectroscopy of the recently discovered hyperbolic near-Earth object A/2017 U1, taken on 25 Oct 2017 at Palomar Observatory. Although our data are at a very low signal-to-noise, they indicate a very red surface at optical wavelengths without significant absorption features.","authors_text":"Joseph Masiero","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2017-10-27T03:34:14Z","title":"Palomar Optical Spectrum of Hyperbolic Near-Earth Object A/2017 U1"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1710.09977","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":"sha256:9574faf743abd62ac5a0041bfa18903053f465379cdb9b904c9a0fb168a6bf8e","target":"record","created_at":"2026-05-18T00:31:30Z","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":"26964ca4ead300798b9d1d3751f90f5880df8d9397ef0e2278348324ad7caef3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2017-10-27T03:34:14Z","title_canon_sha256":"18731bb9597db7fec4bf30bfe8a3ab49090037faf73c809d44131a37360ea046"},"schema_version":"1.0","source":{"id":"1710.09977","kind":"arxiv","version":2}},"canonical_sha256":"2957f19e3732e3b18cc241e12382ed141d67655a0300ed045ac0af22d8563e14","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2957f19e3732e3b18cc241e12382ed141d67655a0300ed045ac0af22d8563e14","first_computed_at":"2026-05-18T00:31:30.607910Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:31:30.607910Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"fxBWG+ebiVrvQUYc3uCuX4v3vDUjXi368qggVplDtZM9wSxOYg7eRSFXjCs9I3ruAPN085TCX6cegl36C6PnAg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:31:30.608681Z","signed_message":"canonical_sha256_bytes"},"source_id":"1710.09977","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9574faf743abd62ac5a0041bfa18903053f465379cdb9b904c9a0fb168a6bf8e","sha256:7628db703e86890c288fa86ccecadfa31d94c5c709643ecc980548b8b1c0f523"],"state_sha256":"17fe569930c76aea4bcc4f94fb4d390cc7753652fa724f97b1396fcd68f017fb"}