{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:DIE4XAH3M3URJRFST3OGAPMFBO","short_pith_number":"pith:DIE4XAH3","canonical_record":{"source":{"id":"1508.07273","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-08-28T16:49:44Z","cross_cats_sorted":[],"title_canon_sha256":"86782ed0636cb75c632cd0d5d38f6dc6e65e348ec37439ef51e3389abfdc2259","abstract_canon_sha256":"2e0b3ceb0c8683145a0d1a35feed3e27aedbab0a2b159bcf68f57cb0f89b7b52"},"schema_version":"1.0"},"canonical_sha256":"1a09cb80fb66e914c4b29edc603d850bad9adf62d5f1ccf29c9aedac5498f8cd","source":{"kind":"arxiv","id":"1508.07273","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1508.07273","created_at":"2026-05-18T01:29:44Z"},{"alias_kind":"arxiv_version","alias_value":"1508.07273v1","created_at":"2026-05-18T01:29:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1508.07273","created_at":"2026-05-18T01:29:44Z"},{"alias_kind":"pith_short_12","alias_value":"DIE4XAH3M3UR","created_at":"2026-05-18T12:29:17Z"},{"alias_kind":"pith_short_16","alias_value":"DIE4XAH3M3URJRFS","created_at":"2026-05-18T12:29:17Z"},{"alias_kind":"pith_short_8","alias_value":"DIE4XAH3","created_at":"2026-05-18T12:29:17Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:DIE4XAH3M3URJRFST3OGAPMFBO","target":"record","payload":{"canonical_record":{"source":{"id":"1508.07273","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-08-28T16:49:44Z","cross_cats_sorted":[],"title_canon_sha256":"86782ed0636cb75c632cd0d5d38f6dc6e65e348ec37439ef51e3389abfdc2259","abstract_canon_sha256":"2e0b3ceb0c8683145a0d1a35feed3e27aedbab0a2b159bcf68f57cb0f89b7b52"},"schema_version":"1.0"},"canonical_sha256":"1a09cb80fb66e914c4b29edc603d850bad9adf62d5f1ccf29c9aedac5498f8cd","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:29:44.877256Z","signature_b64":"jFadWvoR2z+DyPpz7TYXqy3Fc0ppbK/Pg051JAkKsrdHXBkMt/WBORzkg4AVZc4JHGM1AH9DxRJUx30dTVFbAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1a09cb80fb66e914c4b29edc603d850bad9adf62d5f1ccf29c9aedac5498f8cd","last_reissued_at":"2026-05-18T01:29:44.876781Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:29:44.876781Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1508.07273","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":"2026-05-18T01:29:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KIEHBuwuMjVQ1C2+sdCzHPY0scmwslQ4O/5gqf+75qCS68MXBYOXq9lXe7zU4z19wOVNE25pJc/T+nXXrt4uDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T13:51:02.321346Z"},"content_sha256":"5af6a593d50caeda0da1dd92d6c99e1adea309d4ad7aceb4fd4b59ea712dea12","schema_version":"1.0","event_id":"sha256:5af6a593d50caeda0da1dd92d6c99e1adea309d4ad7aceb4fd4b59ea712dea12"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:DIE4XAH3M3URJRFST3OGAPMFBO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"First discovery of a magnetic field in a main sequence delta Scuti star: the Kepler star HD188774","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Coralie Neiner, Patricia Lampens","submitted_at":"2015-08-28T16:49:44Z","abstract_excerpt":"The Kepler space mission provided a wealth of {\\delta} Sct-{\\gamma} Dor hybrid candidates. While some may be genuine hybrids, others might be misclassified due to the presence of a binary companion or to rotational modulation caused by magnetism and related surface inhomogeneities. In particular, the Kepler {\\delta} Sct-{\\gamma} Dor hybrid candidate HD 188774 shows a few low frequencies in its light and radial velocity curves, whose origin is unclear. In this work, we check for the presence of a magnetic field in HD 188774. We obtained two spectropolarimetric measurements with ESPaDOnS at CFHT"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1508.07273","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":"2026-05-18T01:29:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jgvQubTtIs7JXij3cIrQ3jVGSJIdfFHu0OIj+uq06FZezNHjzrWop1vO591a2l7jBf0GRUam5TvmTa2OwyDhCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T13:51:02.322124Z"},"content_sha256":"bf75413fa6130b3a3679523644b0368cd5c894fd07821875e487005a18735795","schema_version":"1.0","event_id":"sha256:bf75413fa6130b3a3679523644b0368cd5c894fd07821875e487005a18735795"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DIE4XAH3M3URJRFST3OGAPMFBO/bundle.json","state_url":"https://pith.science/pith/DIE4XAH3M3URJRFST3OGAPMFBO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DIE4XAH3M3URJRFST3OGAPMFBO/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":"2026-05-31T13:51:02Z","links":{"resolver":"https://pith.science/pith/DIE4XAH3M3URJRFST3OGAPMFBO","bundle":"https://pith.science/pith/DIE4XAH3M3URJRFST3OGAPMFBO/bundle.json","state":"https://pith.science/pith/DIE4XAH3M3URJRFST3OGAPMFBO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DIE4XAH3M3URJRFST3OGAPMFBO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:DIE4XAH3M3URJRFST3OGAPMFBO","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":"2e0b3ceb0c8683145a0d1a35feed3e27aedbab0a2b159bcf68f57cb0f89b7b52","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-08-28T16:49:44Z","title_canon_sha256":"86782ed0636cb75c632cd0d5d38f6dc6e65e348ec37439ef51e3389abfdc2259"},"schema_version":"1.0","source":{"id":"1508.07273","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1508.07273","created_at":"2026-05-18T01:29:44Z"},{"alias_kind":"arxiv_version","alias_value":"1508.07273v1","created_at":"2026-05-18T01:29:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1508.07273","created_at":"2026-05-18T01:29:44Z"},{"alias_kind":"pith_short_12","alias_value":"DIE4XAH3M3UR","created_at":"2026-05-18T12:29:17Z"},{"alias_kind":"pith_short_16","alias_value":"DIE4XAH3M3URJRFS","created_at":"2026-05-18T12:29:17Z"},{"alias_kind":"pith_short_8","alias_value":"DIE4XAH3","created_at":"2026-05-18T12:29:17Z"}],"graph_snapshots":[{"event_id":"sha256:bf75413fa6130b3a3679523644b0368cd5c894fd07821875e487005a18735795","target":"graph","created_at":"2026-05-18T01:29:44Z","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":"The Kepler space mission provided a wealth of {\\delta} Sct-{\\gamma} Dor hybrid candidates. While some may be genuine hybrids, others might be misclassified due to the presence of a binary companion or to rotational modulation caused by magnetism and related surface inhomogeneities. In particular, the Kepler {\\delta} Sct-{\\gamma} Dor hybrid candidate HD 188774 shows a few low frequencies in its light and radial velocity curves, whose origin is unclear. In this work, we check for the presence of a magnetic field in HD 188774. We obtained two spectropolarimetric measurements with ESPaDOnS at CFHT","authors_text":"Coralie Neiner, Patricia Lampens","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-08-28T16:49:44Z","title":"First discovery of a magnetic field in a main sequence delta Scuti star: the Kepler star HD188774"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1508.07273","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":"sha256:5af6a593d50caeda0da1dd92d6c99e1adea309d4ad7aceb4fd4b59ea712dea12","target":"record","created_at":"2026-05-18T01:29:44Z","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":"2e0b3ceb0c8683145a0d1a35feed3e27aedbab0a2b159bcf68f57cb0f89b7b52","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-08-28T16:49:44Z","title_canon_sha256":"86782ed0636cb75c632cd0d5d38f6dc6e65e348ec37439ef51e3389abfdc2259"},"schema_version":"1.0","source":{"id":"1508.07273","kind":"arxiv","version":1}},"canonical_sha256":"1a09cb80fb66e914c4b29edc603d850bad9adf62d5f1ccf29c9aedac5498f8cd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1a09cb80fb66e914c4b29edc603d850bad9adf62d5f1ccf29c9aedac5498f8cd","first_computed_at":"2026-05-18T01:29:44.876781Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:29:44.876781Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"jFadWvoR2z+DyPpz7TYXqy3Fc0ppbK/Pg051JAkKsrdHXBkMt/WBORzkg4AVZc4JHGM1AH9DxRJUx30dTVFbAA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:29:44.877256Z","signed_message":"canonical_sha256_bytes"},"source_id":"1508.07273","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5af6a593d50caeda0da1dd92d6c99e1adea309d4ad7aceb4fd4b59ea712dea12","sha256:bf75413fa6130b3a3679523644b0368cd5c894fd07821875e487005a18735795"],"state_sha256":"90b52f81b7b28f673d3d32870123b5dee136956a5b227bf13765fd8b9f2311a7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"eZ478hbAgLnV1tBB0GykZcDRllphTUCzcrjD9UqX3V/pW9Pr7ffRcxs2M6rM2DZmQRI25BMdAMu0153fs893AA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T13:51:02.326106Z","bundle_sha256":"8abeab462d70da2e8f5a9421849000811700cdbc4baf915e17d20abb7c3129bc"}}