{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:GGHADQ2G3OWBGCLFW24YC5RAD5","short_pith_number":"pith:GGHADQ2G","canonical_record":{"source":{"id":"2101.07278","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2021-01-18T19:00:09Z","cross_cats_sorted":["astro-ph.SR","gr-qc"],"title_canon_sha256":"b0d88f0caef86fc216bd272c47fccb141348e7347be69eabe54dcb48dbd84efa","abstract_canon_sha256":"0e6a12f485e106853dd963a70e88c5fbe2c00af463e9cee871fd6a86c56a3c35"},"schema_version":"1.0"},"canonical_sha256":"318e01c346dbac130965b6b98176201f48f253fb54dd9a060b6da0516f921211","source":{"kind":"arxiv","id":"2101.07278","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2101.07278","created_at":"2026-07-05T02:21:00Z"},{"alias_kind":"arxiv_version","alias_value":"2101.07278v1","created_at":"2026-07-05T02:21:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2101.07278","created_at":"2026-07-05T02:21:00Z"},{"alias_kind":"pith_short_12","alias_value":"GGHADQ2G3OWB","created_at":"2026-07-05T02:21:00Z"},{"alias_kind":"pith_short_16","alias_value":"GGHADQ2G3OWBGCLF","created_at":"2026-07-05T02:21:00Z"},{"alias_kind":"pith_short_8","alias_value":"GGHADQ2G","created_at":"2026-07-05T02:21:00Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:GGHADQ2G3OWBGCLFW24YC5RAD5","target":"record","payload":{"canonical_record":{"source":{"id":"2101.07278","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2021-01-18T19:00:09Z","cross_cats_sorted":["astro-ph.SR","gr-qc"],"title_canon_sha256":"b0d88f0caef86fc216bd272c47fccb141348e7347be69eabe54dcb48dbd84efa","abstract_canon_sha256":"0e6a12f485e106853dd963a70e88c5fbe2c00af463e9cee871fd6a86c56a3c35"},"schema_version":"1.0"},"canonical_sha256":"318e01c346dbac130965b6b98176201f48f253fb54dd9a060b6da0516f921211","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:21:00.625486Z","signature_b64":"N5MaEAkF5Ztkw/tyeSM69X50/GneQFcWOEL/INR8hPVSJ3V0uJvrZaaftl8/QDOPkjU26QhnV8pKcWwGTCxGAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"318e01c346dbac130965b6b98176201f48f253fb54dd9a060b6da0516f921211","last_reissued_at":"2026-07-05T02:21:00.624939Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:21:00.624939Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2101.07278","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":"2026-07-05T02:21:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DvqPGX1JtEkEY4onDvuNF1MDvFdSO1yCxVxh293z+AgbHUzEdP+gJmpdjtLltE8tRV2M58//YypWPgRS37dfCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-24T00:20:16.397964Z"},"content_sha256":"09a491875e1db12a4da9683bf33e8848fd9932923af6168692f8150d6bbd4d20","schema_version":"1.0","event_id":"sha256:09a491875e1db12a4da9683bf33e8848fd9932923af6168692f8150d6bbd4d20"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:GGHADQ2G3OWBGCLFW24YC5RAD5","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Gravitational wave in f(R) gravity: possible signature of sub- and super-Chandrasekhar limiting mass white dwarfs","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR","gr-qc"],"primary_cat":"astro-ph.HE","authors_text":"Banibrata Mukhopadhyay, Surajit Kalita","submitted_at":"2021-01-18T19:00:09Z","abstract_excerpt":"After the prediction of many sub- and super-Chandrasekhar (at least a dozen for the latter) limiting mass white dwarfs, hence apparently peculiar class of white dwarfs, from the observations of luminosity of type Ia supernovae, researchers have proposed various models to explain these two classes of white dwarfs separately. We earlier showed that these two peculiar classes of white dwarfs, along with the regular white dwarfs, can be explained by a single form of the f(R) gravity, whose effect is significant only in the high-density regime, and it almost vanishes in the low-density regime. Howe"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2101.07278","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/2101.07278/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":"2026-07-05T02:21:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wjFlRNP4bcIrsOE1dqEcA1HCbr6eXAsb3ah8N1HKXdYgFQeu3GPcdMDmlKuNjiCWQu3Bd+oWBhdonJ6f0kgsBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-24T00:20:16.398511Z"},"content_sha256":"35913400d009ebddf0f7ae5eba09554fbf335646f1fe0004fd8c90ed5bb3eec8","schema_version":"1.0","event_id":"sha256:35913400d009ebddf0f7ae5eba09554fbf335646f1fe0004fd8c90ed5bb3eec8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/GGHADQ2G3OWBGCLFW24YC5RAD5/bundle.json","state_url":"https://pith.science/pith/GGHADQ2G3OWBGCLFW24YC5RAD5/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/GGHADQ2G3OWBGCLFW24YC5RAD5/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":"2026-08-24T00:20:16Z","links":{"resolver":"https://pith.science/pith/GGHADQ2G3OWBGCLFW24YC5RAD5","bundle":"https://pith.science/pith/GGHADQ2G3OWBGCLFW24YC5RAD5/bundle.json","state":"https://pith.science/pith/GGHADQ2G3OWBGCLFW24YC5RAD5/state.json","well_known_bundle":"https://pith.science/.well-known/pith/GGHADQ2G3OWBGCLFW24YC5RAD5/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:GGHADQ2G3OWBGCLFW24YC5RAD5","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":"0e6a12f485e106853dd963a70e88c5fbe2c00af463e9cee871fd6a86c56a3c35","cross_cats_sorted":["astro-ph.SR","gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2021-01-18T19:00:09Z","title_canon_sha256":"b0d88f0caef86fc216bd272c47fccb141348e7347be69eabe54dcb48dbd84efa"},"schema_version":"1.0","source":{"id":"2101.07278","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2101.07278","created_at":"2026-07-05T02:21:00Z"},{"alias_kind":"arxiv_version","alias_value":"2101.07278v1","created_at":"2026-07-05T02:21:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2101.07278","created_at":"2026-07-05T02:21:00Z"},{"alias_kind":"pith_short_12","alias_value":"GGHADQ2G3OWB","created_at":"2026-07-05T02:21:00Z"},{"alias_kind":"pith_short_16","alias_value":"GGHADQ2G3OWBGCLF","created_at":"2026-07-05T02:21:00Z"},{"alias_kind":"pith_short_8","alias_value":"GGHADQ2G","created_at":"2026-07-05T02:21:00Z"}],"graph_snapshots":[{"event_id":"sha256:35913400d009ebddf0f7ae5eba09554fbf335646f1fe0004fd8c90ed5bb3eec8","target":"graph","created_at":"2026-07-05T02:21:00Z","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/2101.07278/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"After the prediction of many sub- and super-Chandrasekhar (at least a dozen for the latter) limiting mass white dwarfs, hence apparently peculiar class of white dwarfs, from the observations of luminosity of type Ia supernovae, researchers have proposed various models to explain these two classes of white dwarfs separately. We earlier showed that these two peculiar classes of white dwarfs, along with the regular white dwarfs, can be explained by a single form of the f(R) gravity, whose effect is significant only in the high-density regime, and it almost vanishes in the low-density regime. Howe","authors_text":"Banibrata Mukhopadhyay, Surajit Kalita","cross_cats":["astro-ph.SR","gr-qc"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2021-01-18T19:00:09Z","title":"Gravitational wave in f(R) gravity: possible signature of sub- and super-Chandrasekhar limiting mass white dwarfs"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2101.07278","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":"sha256:09a491875e1db12a4da9683bf33e8848fd9932923af6168692f8150d6bbd4d20","target":"record","created_at":"2026-07-05T02:21:00Z","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":"0e6a12f485e106853dd963a70e88c5fbe2c00af463e9cee871fd6a86c56a3c35","cross_cats_sorted":["astro-ph.SR","gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2021-01-18T19:00:09Z","title_canon_sha256":"b0d88f0caef86fc216bd272c47fccb141348e7347be69eabe54dcb48dbd84efa"},"schema_version":"1.0","source":{"id":"2101.07278","kind":"arxiv","version":1}},"canonical_sha256":"318e01c346dbac130965b6b98176201f48f253fb54dd9a060b6da0516f921211","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"318e01c346dbac130965b6b98176201f48f253fb54dd9a060b6da0516f921211","first_computed_at":"2026-07-05T02:21:00.624939Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:21:00.624939Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"N5MaEAkF5Ztkw/tyeSM69X50/GneQFcWOEL/INR8hPVSJ3V0uJvrZaaftl8/QDOPkjU26QhnV8pKcWwGTCxGAA==","signature_status":"signed_v1","signed_at":"2026-07-05T02:21:00.625486Z","signed_message":"canonical_sha256_bytes"},"source_id":"2101.07278","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:09a491875e1db12a4da9683bf33e8848fd9932923af6168692f8150d6bbd4d20","sha256:35913400d009ebddf0f7ae5eba09554fbf335646f1fe0004fd8c90ed5bb3eec8"],"state_sha256":"1c4f1ee116e992379cdc469ab8320f1f861e296bef28a26a9e2f0ecae56e11d4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ke3tQPhm2JXR4j84SNeopvJd9qglR5w3bieuQDfNYfmcwrXTQiuL8BxlfUoHstk0oWRSn3sRY12XaEv6D3jBAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-24T00:20:16.403201Z","bundle_sha256":"a39b02651108e2955159ea66e3cfc82871b2b1f0f9ffceca15be4460ecf8ee7a"}}