{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:C7PM2Y4RB5WVE2ZR4GTEDV6IV7","short_pith_number":"pith:C7PM2Y4R","canonical_record":{"source":{"id":"2506.07898","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2025-06-09T16:13:49Z","cross_cats_sorted":[],"title_canon_sha256":"82d07a46e7a4af4fd72e1b79bf2048e0fabd3ebbbf0f32e1cceccfd8d9e947f6","abstract_canon_sha256":"875da311cb3ef1aadbec77b4bd196a43822e54c58377e937532f60010d22da88"},"schema_version":"1.0"},"canonical_sha256":"17decd63910f6d526b31e1a641d7c8aff83596848288ee332aa993c6cbfa9a4b","source":{"kind":"arxiv","id":"2506.07898","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2506.07898","created_at":"2026-07-05T11:18:35Z"},{"alias_kind":"arxiv_version","alias_value":"2506.07898v1","created_at":"2026-07-05T11:18:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2506.07898","created_at":"2026-07-05T11:18:35Z"},{"alias_kind":"pith_short_12","alias_value":"C7PM2Y4RB5WV","created_at":"2026-07-05T11:18:35Z"},{"alias_kind":"pith_short_16","alias_value":"C7PM2Y4RB5WVE2ZR","created_at":"2026-07-05T11:18:35Z"},{"alias_kind":"pith_short_8","alias_value":"C7PM2Y4R","created_at":"2026-07-05T11:18:35Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:C7PM2Y4RB5WVE2ZR4GTEDV6IV7","target":"record","payload":{"canonical_record":{"source":{"id":"2506.07898","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2025-06-09T16:13:49Z","cross_cats_sorted":[],"title_canon_sha256":"82d07a46e7a4af4fd72e1b79bf2048e0fabd3ebbbf0f32e1cceccfd8d9e947f6","abstract_canon_sha256":"875da311cb3ef1aadbec77b4bd196a43822e54c58377e937532f60010d22da88"},"schema_version":"1.0"},"canonical_sha256":"17decd63910f6d526b31e1a641d7c8aff83596848288ee332aa993c6cbfa9a4b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:18:35.079801Z","signature_b64":"2wlG8I13eWrSxosgetMyKqoEWeCzCh7dlAmmkV94HpC62xAjCkT92HkBUwK2kv9cR3T232zm60rk7bREDP0zBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"17decd63910f6d526b31e1a641d7c8aff83596848288ee332aa993c6cbfa9a4b","last_reissued_at":"2026-07-05T11:18:35.079402Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:18:35.079402Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2506.07898","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":"2026-07-05T11:18:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hbOsy2eifOgnZp5jcSBTJU+P3gxFr4cNlrVkxE7x+sP03cVxjKJBmodkFwnol2QiXY/UnBVW0Y98tkwjNh61Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T09:22:05.277901Z"},"content_sha256":"a964b8aa6401246c5c3767ac6715d5391b979e3932408bc9cf24002bcbac308f","schema_version":"1.0","event_id":"sha256:a964b8aa6401246c5c3767ac6715d5391b979e3932408bc9cf24002bcbac308f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:C7PM2Y4RB5WVE2ZR4GTEDV6IV7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Constraints on Quaoar's rings and atmosphere from JWST/NIRCam observations of a stellar occultation","license":"http://creativecommons.org/licenses/by-sa/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Benjamin Proudfoot, Bryan Holler, Cameron Collyer, Estela Fern\\'andez-Valenzuela, Flavia Rommel, Ko Arimatsu","submitted_at":"2025-06-09T16:13:49Z","abstract_excerpt":"Observations of stellar occultations have revealed that small bodies are capable of hosting ring systems. The trans-Neptunian object (TNO) Quaoar, is the host of an enigmatic ring system, with two rings located well-outside the Roche limit. To better understand these structures, we observed a stellar occultation by Quaoar and its rings using the James Webb Space Telescope's (JWST) NIRCam instrument. Our observations detect both known rings, although Q2R -- the inner known ring -- is not detected on both sides of Quaoar, showing that it has substantial azimuthal variations similar to Q1R -- the"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2506.07898","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2506.07898/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T11:18:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"73LqgSy+/5Z45hthsa8L/8F1gvTr2v0yaN/piUBuGXgKHv4g+9F5JFUU8WvM4DhtEd1f3FnfGJzb2lpCeY/rAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T09:22:05.278412Z"},"content_sha256":"ea40a6b8cfba4d327a3434844d6830cedd354cf59138ffb455980deb78fa0118","schema_version":"1.0","event_id":"sha256:ea40a6b8cfba4d327a3434844d6830cedd354cf59138ffb455980deb78fa0118"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/C7PM2Y4RB5WVE2ZR4GTEDV6IV7/bundle.json","state_url":"https://pith.science/pith/C7PM2Y4RB5WVE2ZR4GTEDV6IV7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/C7PM2Y4RB5WVE2ZR4GTEDV6IV7/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":"2026-08-08T09:22:05Z","links":{"resolver":"https://pith.science/pith/C7PM2Y4RB5WVE2ZR4GTEDV6IV7","bundle":"https://pith.science/pith/C7PM2Y4RB5WVE2ZR4GTEDV6IV7/bundle.json","state":"https://pith.science/pith/C7PM2Y4RB5WVE2ZR4GTEDV6IV7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/C7PM2Y4RB5WVE2ZR4GTEDV6IV7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:C7PM2Y4RB5WVE2ZR4GTEDV6IV7","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":"875da311cb3ef1aadbec77b4bd196a43822e54c58377e937532f60010d22da88","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2025-06-09T16:13:49Z","title_canon_sha256":"82d07a46e7a4af4fd72e1b79bf2048e0fabd3ebbbf0f32e1cceccfd8d9e947f6"},"schema_version":"1.0","source":{"id":"2506.07898","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2506.07898","created_at":"2026-07-05T11:18:35Z"},{"alias_kind":"arxiv_version","alias_value":"2506.07898v1","created_at":"2026-07-05T11:18:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2506.07898","created_at":"2026-07-05T11:18:35Z"},{"alias_kind":"pith_short_12","alias_value":"C7PM2Y4RB5WV","created_at":"2026-07-05T11:18:35Z"},{"alias_kind":"pith_short_16","alias_value":"C7PM2Y4RB5WVE2ZR","created_at":"2026-07-05T11:18:35Z"},{"alias_kind":"pith_short_8","alias_value":"C7PM2Y4R","created_at":"2026-07-05T11:18:35Z"}],"graph_snapshots":[{"event_id":"sha256:ea40a6b8cfba4d327a3434844d6830cedd354cf59138ffb455980deb78fa0118","target":"graph","created_at":"2026-07-05T11:18:35Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2506.07898/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Observations of stellar occultations have revealed that small bodies are capable of hosting ring systems. The trans-Neptunian object (TNO) Quaoar, is the host of an enigmatic ring system, with two rings located well-outside the Roche limit. To better understand these structures, we observed a stellar occultation by Quaoar and its rings using the James Webb Space Telescope's (JWST) NIRCam instrument. Our observations detect both known rings, although Q2R -- the inner known ring -- is not detected on both sides of Quaoar, showing that it has substantial azimuthal variations similar to Q1R -- the","authors_text":"Benjamin Proudfoot, Bryan Holler, Cameron Collyer, Estela Fern\\'andez-Valenzuela, Flavia Rommel, Ko Arimatsu","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2025-06-09T16:13:49Z","title":"Constraints on Quaoar's rings and atmosphere from JWST/NIRCam observations of a stellar occultation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2506.07898","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:a964b8aa6401246c5c3767ac6715d5391b979e3932408bc9cf24002bcbac308f","target":"record","created_at":"2026-07-05T11:18:35Z","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":"875da311cb3ef1aadbec77b4bd196a43822e54c58377e937532f60010d22da88","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2025-06-09T16:13:49Z","title_canon_sha256":"82d07a46e7a4af4fd72e1b79bf2048e0fabd3ebbbf0f32e1cceccfd8d9e947f6"},"schema_version":"1.0","source":{"id":"2506.07898","kind":"arxiv","version":1}},"canonical_sha256":"17decd63910f6d526b31e1a641d7c8aff83596848288ee332aa993c6cbfa9a4b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"17decd63910f6d526b31e1a641d7c8aff83596848288ee332aa993c6cbfa9a4b","first_computed_at":"2026-07-05T11:18:35.079402Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:18:35.079402Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"2wlG8I13eWrSxosgetMyKqoEWeCzCh7dlAmmkV94HpC62xAjCkT92HkBUwK2kv9cR3T232zm60rk7bREDP0zBw==","signature_status":"signed_v1","signed_at":"2026-07-05T11:18:35.079801Z","signed_message":"canonical_sha256_bytes"},"source_id":"2506.07898","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a964b8aa6401246c5c3767ac6715d5391b979e3932408bc9cf24002bcbac308f","sha256:ea40a6b8cfba4d327a3434844d6830cedd354cf59138ffb455980deb78fa0118"],"state_sha256":"9c44d0bc063fb3b3e0deb2450f7d0c78823e911a63c47e25055825eb20b51df3"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sm2VmeSngHXm2aPpJ/w5O7owxokpM1U1ADIpU0JC3uXkrKXpUiI8AOIX7RGiOLzhkaGUKT/4503iNezMT5swDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-08T09:22:05.283485Z","bundle_sha256":"707dafa1b4965973eaf37816134526b0aa42facf9693cbc5463bb01565c1e320"}}