{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:XAUXLXN5FQFHX5Y72XA6XS6SCR","short_pith_number":"pith:XAUXLXN5","canonical_record":{"source":{"id":"1504.08066","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2015-04-30T03:08:28Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"efeb1527bb8a10ef39085181578832bb8bde4ff2d0f954a016157307f017f6ec","abstract_canon_sha256":"90c0a756dee3c7a416e586be90290739f4d43424c866414311bbc95bf4fa7074"},"schema_version":"1.0"},"canonical_sha256":"b82975ddbd2c0a7bf71fd5c1ebcbd2147e210caa6ce6dea1874cfbdb069ac040","source":{"kind":"arxiv","id":"1504.08066","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1504.08066","created_at":"2026-05-18T01:46:14Z"},{"alias_kind":"arxiv_version","alias_value":"1504.08066v1","created_at":"2026-05-18T01:46:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1504.08066","created_at":"2026-05-18T01:46:14Z"},{"alias_kind":"pith_short_12","alias_value":"XAUXLXN5FQFH","created_at":"2026-05-18T12:29:50Z"},{"alias_kind":"pith_short_16","alias_value":"XAUXLXN5FQFHX5Y7","created_at":"2026-05-18T12:29:50Z"},{"alias_kind":"pith_short_8","alias_value":"XAUXLXN5","created_at":"2026-05-18T12:29:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:XAUXLXN5FQFHX5Y72XA6XS6SCR","target":"record","payload":{"canonical_record":{"source":{"id":"1504.08066","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2015-04-30T03:08:28Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"efeb1527bb8a10ef39085181578832bb8bde4ff2d0f954a016157307f017f6ec","abstract_canon_sha256":"90c0a756dee3c7a416e586be90290739f4d43424c866414311bbc95bf4fa7074"},"schema_version":"1.0"},"canonical_sha256":"b82975ddbd2c0a7bf71fd5c1ebcbd2147e210caa6ce6dea1874cfbdb069ac040","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:46:14.778634Z","signature_b64":"NU8Lz4VkTxCjCAFUn1XJ+yVsVZU0zUWZlbNe+Efz+km0pTQskVeY81trgxUpeyGcjwitzL7Jze2tEKSSmSJEAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b82975ddbd2c0a7bf71fd5c1ebcbd2147e210caa6ce6dea1874cfbdb069ac040","last_reissued_at":"2026-05-18T01:46:14.778041Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:46:14.778041Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1504.08066","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":"2026-05-18T01:46:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Mg8VPLexFkbEE6DZvB0Q2JSXnatQd7Ia9HGkFkk5OUInMX3On2rH00k7PikvFyOdDpJ+heGxPVfXz4fmxfQ0Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T10:28:28.406371Z"},"content_sha256":"61f5fd54eba9c97176547c2d22c5acbc95d1eb0b5afcbdd743f06e89bc9f0a66","schema_version":"1.0","event_id":"sha256:61f5fd54eba9c97176547c2d22c5acbc95d1eb0b5afcbdd743f06e89bc9f0a66"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:XAUXLXN5FQFHX5Y72XA6XS6SCR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Determination of fundamental asteroseismic parameters using the Hilbert transform","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.IM","authors_text":"Ariane Schad, Markus Roth, Ren\\'e Kiefer, Wiebke Herzberg","submitted_at":"2015-04-30T03:08:28Z","abstract_excerpt":"Context. Solar-like oscillations exhibit a regular pattern of frequencies. This pattern is dominated by the small and large frequency separations between modes. The accurate determination of these parameters is of great interest, because they give information about e.g. the evolutionary state and the mass of a star.\n  Aims. We want to develop a robust method to determine the large and small frequency separations for time series with low signal-tonoise ratio. For this purpose, we analyse a time series of the Sun from the GOLF instrument aboard SOHO and a time series of the star KIC 5184732 from"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1504.08066","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":"2026-05-18T01:46:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JBsczLO/+Mcc4ztR58y1VgnTARfO3kdWa4oNw6c32ENGflN+i7wftd3KVk1DwDR2RKd+URzXnfFRZZpAxLC8CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T10:28:28.407002Z"},"content_sha256":"8d62ee772fcf5c561e0d0f0c6606f738c3232921be6129351de937cfbbf538e1","schema_version":"1.0","event_id":"sha256:8d62ee772fcf5c561e0d0f0c6606f738c3232921be6129351de937cfbbf538e1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XAUXLXN5FQFHX5Y72XA6XS6SCR/bundle.json","state_url":"https://pith.science/pith/XAUXLXN5FQFHX5Y72XA6XS6SCR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XAUXLXN5FQFHX5Y72XA6XS6SCR/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":"2026-06-07T10:28:28Z","links":{"resolver":"https://pith.science/pith/XAUXLXN5FQFHX5Y72XA6XS6SCR","bundle":"https://pith.science/pith/XAUXLXN5FQFHX5Y72XA6XS6SCR/bundle.json","state":"https://pith.science/pith/XAUXLXN5FQFHX5Y72XA6XS6SCR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XAUXLXN5FQFHX5Y72XA6XS6SCR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:XAUXLXN5FQFHX5Y72XA6XS6SCR","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":"90c0a756dee3c7a416e586be90290739f4d43424c866414311bbc95bf4fa7074","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2015-04-30T03:08:28Z","title_canon_sha256":"efeb1527bb8a10ef39085181578832bb8bde4ff2d0f954a016157307f017f6ec"},"schema_version":"1.0","source":{"id":"1504.08066","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1504.08066","created_at":"2026-05-18T01:46:14Z"},{"alias_kind":"arxiv_version","alias_value":"1504.08066v1","created_at":"2026-05-18T01:46:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1504.08066","created_at":"2026-05-18T01:46:14Z"},{"alias_kind":"pith_short_12","alias_value":"XAUXLXN5FQFH","created_at":"2026-05-18T12:29:50Z"},{"alias_kind":"pith_short_16","alias_value":"XAUXLXN5FQFHX5Y7","created_at":"2026-05-18T12:29:50Z"},{"alias_kind":"pith_short_8","alias_value":"XAUXLXN5","created_at":"2026-05-18T12:29:50Z"}],"graph_snapshots":[{"event_id":"sha256:8d62ee772fcf5c561e0d0f0c6606f738c3232921be6129351de937cfbbf538e1","target":"graph","created_at":"2026-05-18T01:46:14Z","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":"Context. Solar-like oscillations exhibit a regular pattern of frequencies. This pattern is dominated by the small and large frequency separations between modes. The accurate determination of these parameters is of great interest, because they give information about e.g. the evolutionary state and the mass of a star.\n  Aims. We want to develop a robust method to determine the large and small frequency separations for time series with low signal-tonoise ratio. For this purpose, we analyse a time series of the Sun from the GOLF instrument aboard SOHO and a time series of the star KIC 5184732 from","authors_text":"Ariane Schad, Markus Roth, Ren\\'e Kiefer, Wiebke Herzberg","cross_cats":["astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2015-04-30T03:08:28Z","title":"Determination of fundamental asteroseismic parameters using the Hilbert transform"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1504.08066","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":"sha256:61f5fd54eba9c97176547c2d22c5acbc95d1eb0b5afcbdd743f06e89bc9f0a66","target":"record","created_at":"2026-05-18T01:46:14Z","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":"90c0a756dee3c7a416e586be90290739f4d43424c866414311bbc95bf4fa7074","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2015-04-30T03:08:28Z","title_canon_sha256":"efeb1527bb8a10ef39085181578832bb8bde4ff2d0f954a016157307f017f6ec"},"schema_version":"1.0","source":{"id":"1504.08066","kind":"arxiv","version":1}},"canonical_sha256":"b82975ddbd2c0a7bf71fd5c1ebcbd2147e210caa6ce6dea1874cfbdb069ac040","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b82975ddbd2c0a7bf71fd5c1ebcbd2147e210caa6ce6dea1874cfbdb069ac040","first_computed_at":"2026-05-18T01:46:14.778041Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:46:14.778041Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"NU8Lz4VkTxCjCAFUn1XJ+yVsVZU0zUWZlbNe+Efz+km0pTQskVeY81trgxUpeyGcjwitzL7Jze2tEKSSmSJEAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:46:14.778634Z","signed_message":"canonical_sha256_bytes"},"source_id":"1504.08066","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:61f5fd54eba9c97176547c2d22c5acbc95d1eb0b5afcbdd743f06e89bc9f0a66","sha256:8d62ee772fcf5c561e0d0f0c6606f738c3232921be6129351de937cfbbf538e1"],"state_sha256":"3d2d9d9cd3f2f5c70307cb3b287fb7217be749aa018dcdf2e34f2c87ce423315"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yMAb9a25z/4M+Z+Q+L83wKIrCMZLARvaFHQ9AJP6V1ZmE8i1nfzuyDFzDlbNkqXcDv2r+U3wksbtwj7tDDOYDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-07T10:28:28.410008Z","bundle_sha256":"1af9d771833c1016ae5baf35bef71e04e39ad086a3dd90a89db7be205181f8d4"}}