{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:PRNW436M5R4TFY5BZZVJ76J7KV","short_pith_number":"pith:PRNW436M","canonical_record":{"source":{"id":"1503.01231","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2015-03-04T06:03:28Z","cross_cats_sorted":[],"title_canon_sha256":"cf4ad8a6d2ca77eecccbb4077909429bad1563bb91c34f5a96ed2d20075a37a9","abstract_canon_sha256":"d79106b7033bae751913494544db9a8cbc67c97b45bd35c1386f697860dd1407"},"schema_version":"1.0"},"canonical_sha256":"7c5b6e6fccec7932e3a1ce6a9ff93f5566f286ed63222caeae8043c110b78a93","source":{"kind":"arxiv","id":"1503.01231","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1503.01231","created_at":"2026-05-18T02:18:15Z"},{"alias_kind":"arxiv_version","alias_value":"1503.01231v1","created_at":"2026-05-18T02:18:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1503.01231","created_at":"2026-05-18T02:18:15Z"},{"alias_kind":"pith_short_12","alias_value":"PRNW436M5R4T","created_at":"2026-05-18T12:29:37Z"},{"alias_kind":"pith_short_16","alias_value":"PRNW436M5R4TFY5B","created_at":"2026-05-18T12:29:37Z"},{"alias_kind":"pith_short_8","alias_value":"PRNW436M","created_at":"2026-05-18T12:29:37Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:PRNW436M5R4TFY5BZZVJ76J7KV","target":"record","payload":{"canonical_record":{"source":{"id":"1503.01231","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2015-03-04T06:03:28Z","cross_cats_sorted":[],"title_canon_sha256":"cf4ad8a6d2ca77eecccbb4077909429bad1563bb91c34f5a96ed2d20075a37a9","abstract_canon_sha256":"d79106b7033bae751913494544db9a8cbc67c97b45bd35c1386f697860dd1407"},"schema_version":"1.0"},"canonical_sha256":"7c5b6e6fccec7932e3a1ce6a9ff93f5566f286ed63222caeae8043c110b78a93","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:18:15.107774Z","signature_b64":"+07dKwLgHLMnnR2dabpd2pa9YjAsfF+Qaowz6g9j4ZzqOd57FC1MjRxFlfe3O/rOdLkjndJTIq/zuCS9U9igDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7c5b6e6fccec7932e3a1ce6a9ff93f5566f286ed63222caeae8043c110b78a93","last_reissued_at":"2026-05-18T02:18:15.107308Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:18:15.107308Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1503.01231","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":"2026-05-18T02:18:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"e1EJ+t8j4tHGhgvkBLxFukjXrQKY0D6iOd2fMZ4Q8gge6e8vhFy60xlDuvFHQFT5c4BvLzS+89bCOOy60nejDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T23:30:07.180170Z"},"content_sha256":"c181dbcfef3e89d98785a64ad40b703c7ca3639438f95ba46915760e8c23c6d8","schema_version":"1.0","event_id":"sha256:c181dbcfef3e89d98785a64ad40b703c7ca3639438f95ba46915760e8c23c6d8"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:PRNW436M5R4TFY5BZZVJ76J7KV","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A new estimation method for mass of an isolated neutron star using gravitational waves","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"Kazunari Eda, Kenji Ono, Yousuke Itoh","submitted_at":"2015-03-04T06:03:28Z","abstract_excerpt":"We investigate a possibility of estimating mass of an isolated rapidly rotating neutron star (NS) from a continuous gravitational wave (GW) signal emitted by the NS. When the GW passes through the gravitational potential of the NS, the GW takes a slightly longer time to travel to an observer than it does in the absence of the NS. Such a time dilation effect holds also for photons and is often referred to as the gravitational time delay (or the Shapiro time delay). Correspondingly, the phase of the GW from the NS shifts due to the Coulomb type gravitational potential of the NS, and the resultin"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1503.01231","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":"2026-05-18T02:18:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LXSJUCQOfJERquoIrkI3CiMGwgC2Oucidy4M+qr72BRz2GLXb3gWDAhIQtDBJMuHxsKPcXXjL/9mETFXZIAqDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T23:30:07.180534Z"},"content_sha256":"0ab392d772ccbf407276a577cb95e2ae8ed706310cf8c059ef4ba88ef66e4c39","schema_version":"1.0","event_id":"sha256:0ab392d772ccbf407276a577cb95e2ae8ed706310cf8c059ef4ba88ef66e4c39"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/PRNW436M5R4TFY5BZZVJ76J7KV/bundle.json","state_url":"https://pith.science/pith/PRNW436M5R4TFY5BZZVJ76J7KV/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/PRNW436M5R4TFY5BZZVJ76J7KV/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":"2026-06-02T23:30:07Z","links":{"resolver":"https://pith.science/pith/PRNW436M5R4TFY5BZZVJ76J7KV","bundle":"https://pith.science/pith/PRNW436M5R4TFY5BZZVJ76J7KV/bundle.json","state":"https://pith.science/pith/PRNW436M5R4TFY5BZZVJ76J7KV/state.json","well_known_bundle":"https://pith.science/.well-known/pith/PRNW436M5R4TFY5BZZVJ76J7KV/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:PRNW436M5R4TFY5BZZVJ76J7KV","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":"d79106b7033bae751913494544db9a8cbc67c97b45bd35c1386f697860dd1407","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2015-03-04T06:03:28Z","title_canon_sha256":"cf4ad8a6d2ca77eecccbb4077909429bad1563bb91c34f5a96ed2d20075a37a9"},"schema_version":"1.0","source":{"id":"1503.01231","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1503.01231","created_at":"2026-05-18T02:18:15Z"},{"alias_kind":"arxiv_version","alias_value":"1503.01231v1","created_at":"2026-05-18T02:18:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1503.01231","created_at":"2026-05-18T02:18:15Z"},{"alias_kind":"pith_short_12","alias_value":"PRNW436M5R4T","created_at":"2026-05-18T12:29:37Z"},{"alias_kind":"pith_short_16","alias_value":"PRNW436M5R4TFY5B","created_at":"2026-05-18T12:29:37Z"},{"alias_kind":"pith_short_8","alias_value":"PRNW436M","created_at":"2026-05-18T12:29:37Z"}],"graph_snapshots":[{"event_id":"sha256:0ab392d772ccbf407276a577cb95e2ae8ed706310cf8c059ef4ba88ef66e4c39","target":"graph","created_at":"2026-05-18T02:18:15Z","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 investigate a possibility of estimating mass of an isolated rapidly rotating neutron star (NS) from a continuous gravitational wave (GW) signal emitted by the NS. When the GW passes through the gravitational potential of the NS, the GW takes a slightly longer time to travel to an observer than it does in the absence of the NS. Such a time dilation effect holds also for photons and is often referred to as the gravitational time delay (or the Shapiro time delay). Correspondingly, the phase of the GW from the NS shifts due to the Coulomb type gravitational potential of the NS, and the resultin","authors_text":"Kazunari Eda, Kenji Ono, Yousuke Itoh","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2015-03-04T06:03:28Z","title":"A new estimation method for mass of an isolated neutron star using gravitational waves"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1503.01231","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:c181dbcfef3e89d98785a64ad40b703c7ca3639438f95ba46915760e8c23c6d8","target":"record","created_at":"2026-05-18T02:18:15Z","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":"d79106b7033bae751913494544db9a8cbc67c97b45bd35c1386f697860dd1407","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2015-03-04T06:03:28Z","title_canon_sha256":"cf4ad8a6d2ca77eecccbb4077909429bad1563bb91c34f5a96ed2d20075a37a9"},"schema_version":"1.0","source":{"id":"1503.01231","kind":"arxiv","version":1}},"canonical_sha256":"7c5b6e6fccec7932e3a1ce6a9ff93f5566f286ed63222caeae8043c110b78a93","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7c5b6e6fccec7932e3a1ce6a9ff93f5566f286ed63222caeae8043c110b78a93","first_computed_at":"2026-05-18T02:18:15.107308Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:18:15.107308Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"+07dKwLgHLMnnR2dabpd2pa9YjAsfF+Qaowz6g9j4ZzqOd57FC1MjRxFlfe3O/rOdLkjndJTIq/zuCS9U9igDg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:18:15.107774Z","signed_message":"canonical_sha256_bytes"},"source_id":"1503.01231","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c181dbcfef3e89d98785a64ad40b703c7ca3639438f95ba46915760e8c23c6d8","sha256:0ab392d772ccbf407276a577cb95e2ae8ed706310cf8c059ef4ba88ef66e4c39"],"state_sha256":"a2136dbdd9a4d41dfe27dfe34889d560895f152a8d58d95cb584c455108396ff"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fVoH7p7XE3QSS5U7donxYjQLPcgyeBJnjgHHR3IDSpoUh1jGyQiXL+UH2DNXm4GnY/vZbbhQaf35VEE4RwnaDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T23:30:07.182473Z","bundle_sha256":"e83112ed82d0876815578a0e8adb688415d637cf7e8f60373883dc1c99b68e04"}}