{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:E6HQKQ4MQLAEAEJJRZJXYIFTE7","short_pith_number":"pith:E6HQKQ4M","canonical_record":{"source":{"id":"2012.08263","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2020-12-15T12:52:24Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"d8b2a4abf7516c7184fb39adbf0d79a187d31bd620a118996de13da2c1d1093b","abstract_canon_sha256":"f0781d98c05e1c45def047d466e83567bad0c0c0e82e9a58ae19f7c8cbc672e6"},"schema_version":"1.0"},"canonical_sha256":"278f05438c82c04011298e537c20b327cde2c6d749585be8f19e90de11c21198","source":{"kind":"arxiv","id":"2012.08263","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2012.08263","created_at":"2026-07-05T03:13:01Z"},{"alias_kind":"arxiv_version","alias_value":"2012.08263v1","created_at":"2026-07-05T03:13:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2012.08263","created_at":"2026-07-05T03:13:01Z"},{"alias_kind":"pith_short_12","alias_value":"E6HQKQ4MQLAE","created_at":"2026-07-05T03:13:01Z"},{"alias_kind":"pith_short_16","alias_value":"E6HQKQ4MQLAEAEJJ","created_at":"2026-07-05T03:13:01Z"},{"alias_kind":"pith_short_8","alias_value":"E6HQKQ4M","created_at":"2026-07-05T03:13:01Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:E6HQKQ4MQLAEAEJJRZJXYIFTE7","target":"record","payload":{"canonical_record":{"source":{"id":"2012.08263","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2020-12-15T12:52:24Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"d8b2a4abf7516c7184fb39adbf0d79a187d31bd620a118996de13da2c1d1093b","abstract_canon_sha256":"f0781d98c05e1c45def047d466e83567bad0c0c0e82e9a58ae19f7c8cbc672e6"},"schema_version":"1.0"},"canonical_sha256":"278f05438c82c04011298e537c20b327cde2c6d749585be8f19e90de11c21198","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:13:01.438402Z","signature_b64":"NfBDBESv9WMWMoKPPM24fid1RX56qj6M9XLBAiKVSDcjtxB8feFFZdbfZ+SPh52bVhaXt4BVlznjgmKEtg9iBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"278f05438c82c04011298e537c20b327cde2c6d749585be8f19e90de11c21198","last_reissued_at":"2026-07-05T03:13:01.437938Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:13:01.437938Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2012.08263","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":"2026-07-05T03:13:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PSxlo9hWB5EFNlf4xE5NZUSClQiOoxWgPVWd3Cm8RjgLgdBILBdJ/6/OVJoTaxg2eOZnsdyvYSCjSclKBM9tBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T03:14:33.504888Z"},"content_sha256":"9dbd2d8373493f85e522028db9dd5d4048249d492605057e5af2a8025d846e3a","schema_version":"1.0","event_id":"sha256:9dbd2d8373493f85e522028db9dd5d4048249d492605057e5af2a8025d846e3a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:E6HQKQ4MQLAEAEJJRZJXYIFTE7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Gravitational-wave asteroseismology with f-modes from neutron star binaries at the merger phase","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc"],"primary_cat":"astro-ph.HE","authors_text":"Harry Ho-Yin Ng, Lap-Ming Lin, Patrick Chi-Kit Cheong, Tjonnie Guang Feng Li","submitted_at":"2020-12-15T12:52:24Z","abstract_excerpt":"Gravitational-wave signals from coalescing binary neutron stars can yield important information about the properties of nuclear-matter equation of state from the early part of the signal through tidal effects to the properties and oscillation frequencies of the merger product. We investigate a direct link between the properties of isolated neutron stars and their merger, by comparing the frequency of the fundamental oscillation mode ($f$-mode) of neutron stars with the gravitational-wave frequency associated with the merger of two neutron stars. We calculate the quadrupolar ($l=2$) $f$-mode os"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2012.08263","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/2012.08263/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":"2026-07-05T03:13:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6vwcutIKnhcBwA7c1zVCGCZ7wEhKCkccAFrf772AObBsHex7UfbAveFVZfICrnCNAbXCQzX9VgCRJy3WOsHmAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T03:14:33.505384Z"},"content_sha256":"bf406cd428335beaba9da77a814b3492bd34709e9ebe7fe5b0f992b20e538759","schema_version":"1.0","event_id":"sha256:bf406cd428335beaba9da77a814b3492bd34709e9ebe7fe5b0f992b20e538759"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/E6HQKQ4MQLAEAEJJRZJXYIFTE7/bundle.json","state_url":"https://pith.science/pith/E6HQKQ4MQLAEAEJJRZJXYIFTE7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/E6HQKQ4MQLAEAEJJRZJXYIFTE7/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":"2026-08-05T03:14:33Z","links":{"resolver":"https://pith.science/pith/E6HQKQ4MQLAEAEJJRZJXYIFTE7","bundle":"https://pith.science/pith/E6HQKQ4MQLAEAEJJRZJXYIFTE7/bundle.json","state":"https://pith.science/pith/E6HQKQ4MQLAEAEJJRZJXYIFTE7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/E6HQKQ4MQLAEAEJJRZJXYIFTE7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:E6HQKQ4MQLAEAEJJRZJXYIFTE7","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":"f0781d98c05e1c45def047d466e83567bad0c0c0e82e9a58ae19f7c8cbc672e6","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2020-12-15T12:52:24Z","title_canon_sha256":"d8b2a4abf7516c7184fb39adbf0d79a187d31bd620a118996de13da2c1d1093b"},"schema_version":"1.0","source":{"id":"2012.08263","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2012.08263","created_at":"2026-07-05T03:13:01Z"},{"alias_kind":"arxiv_version","alias_value":"2012.08263v1","created_at":"2026-07-05T03:13:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2012.08263","created_at":"2026-07-05T03:13:01Z"},{"alias_kind":"pith_short_12","alias_value":"E6HQKQ4MQLAE","created_at":"2026-07-05T03:13:01Z"},{"alias_kind":"pith_short_16","alias_value":"E6HQKQ4MQLAEAEJJ","created_at":"2026-07-05T03:13:01Z"},{"alias_kind":"pith_short_8","alias_value":"E6HQKQ4M","created_at":"2026-07-05T03:13:01Z"}],"graph_snapshots":[{"event_id":"sha256:bf406cd428335beaba9da77a814b3492bd34709e9ebe7fe5b0f992b20e538759","target":"graph","created_at":"2026-07-05T03:13:01Z","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/2012.08263/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Gravitational-wave signals from coalescing binary neutron stars can yield important information about the properties of nuclear-matter equation of state from the early part of the signal through tidal effects to the properties and oscillation frequencies of the merger product. We investigate a direct link between the properties of isolated neutron stars and their merger, by comparing the frequency of the fundamental oscillation mode ($f$-mode) of neutron stars with the gravitational-wave frequency associated with the merger of two neutron stars. We calculate the quadrupolar ($l=2$) $f$-mode os","authors_text":"Harry Ho-Yin Ng, Lap-Ming Lin, Patrick Chi-Kit Cheong, Tjonnie Guang Feng Li","cross_cats":["gr-qc"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2020-12-15T12:52:24Z","title":"Gravitational-wave asteroseismology with f-modes from neutron star binaries at the merger phase"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2012.08263","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":"sha256:9dbd2d8373493f85e522028db9dd5d4048249d492605057e5af2a8025d846e3a","target":"record","created_at":"2026-07-05T03:13:01Z","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":"f0781d98c05e1c45def047d466e83567bad0c0c0e82e9a58ae19f7c8cbc672e6","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2020-12-15T12:52:24Z","title_canon_sha256":"d8b2a4abf7516c7184fb39adbf0d79a187d31bd620a118996de13da2c1d1093b"},"schema_version":"1.0","source":{"id":"2012.08263","kind":"arxiv","version":1}},"canonical_sha256":"278f05438c82c04011298e537c20b327cde2c6d749585be8f19e90de11c21198","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"278f05438c82c04011298e537c20b327cde2c6d749585be8f19e90de11c21198","first_computed_at":"2026-07-05T03:13:01.437938Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:13:01.437938Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"NfBDBESv9WMWMoKPPM24fid1RX56qj6M9XLBAiKVSDcjtxB8feFFZdbfZ+SPh52bVhaXt4BVlznjgmKEtg9iBg==","signature_status":"signed_v1","signed_at":"2026-07-05T03:13:01.438402Z","signed_message":"canonical_sha256_bytes"},"source_id":"2012.08263","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9dbd2d8373493f85e522028db9dd5d4048249d492605057e5af2a8025d846e3a","sha256:bf406cd428335beaba9da77a814b3492bd34709e9ebe7fe5b0f992b20e538759"],"state_sha256":"d6fe11c3dac7ae7eb2d58f14daa621368de5fb7043a6160809ff9cb9d9706b67"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1/OLV5HE63jvgRbqy8GX0lPd4y+vmsp+oFDY7oyrMk50AD7sBHQ4CpSsw/FASEe8hgSoclvgNz0lzIrPGvrTBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-05T03:14:33.510085Z","bundle_sha256":"a1c0046a4cedc75462d3db59b5100d2a84fb9fdf95c5a96731149aced679f6d1"}}