{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:N37J334I3AWWBAVFAHSIFVS5UZ","short_pith_number":"pith:N37J334I","canonical_record":{"source":{"id":"2109.01155","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2021-09-02T18:03:44Z","cross_cats_sorted":["astro-ph.CO","hep-th"],"title_canon_sha256":"e10ff11af67a958a052e0437be69bf83ed3b32d91bd15bd3ee57b3f588c627d8","abstract_canon_sha256":"f2d9be93fc33b38a2b04d54ede4e7bf4f74b88abf77284b278ad333ee21acaa8"},"schema_version":"1.0"},"canonical_sha256":"6efe9def88d82d6082a501e482d65da64d2737fa11693aa968b0d62580a91834","source":{"kind":"arxiv","id":"2109.01155","version":4},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2109.01155","created_at":"2026-07-05T05:13:18Z"},{"alias_kind":"arxiv_version","alias_value":"2109.01155v4","created_at":"2026-07-05T05:13:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2109.01155","created_at":"2026-07-05T05:13:18Z"},{"alias_kind":"pith_short_12","alias_value":"N37J334I3AWW","created_at":"2026-07-05T05:13:18Z"},{"alias_kind":"pith_short_16","alias_value":"N37J334I3AWWBAVF","created_at":"2026-07-05T05:13:18Z"},{"alias_kind":"pith_short_8","alias_value":"N37J334I","created_at":"2026-07-05T05:13:18Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:N37J334I3AWWBAVFAHSIFVS5UZ","target":"record","payload":{"canonical_record":{"source":{"id":"2109.01155","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2021-09-02T18:03:44Z","cross_cats_sorted":["astro-ph.CO","hep-th"],"title_canon_sha256":"e10ff11af67a958a052e0437be69bf83ed3b32d91bd15bd3ee57b3f588c627d8","abstract_canon_sha256":"f2d9be93fc33b38a2b04d54ede4e7bf4f74b88abf77284b278ad333ee21acaa8"},"schema_version":"1.0"},"canonical_sha256":"6efe9def88d82d6082a501e482d65da64d2737fa11693aa968b0d62580a91834","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:13:18.187276Z","signature_b64":"0wfnWsvQPGnU0G2y0I3Y8G5BBL1qwZ51KTEo4WgaElJuTcYvQOasMlxLltNggNcMQtDcnvVd8nzunVdCycPwAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6efe9def88d82d6082a501e482d65da64d2737fa11693aa968b0d62580a91834","last_reissued_at":"2026-07-05T05:13:18.186872Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:13:18.186872Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2109.01155","source_version":4,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T05:13:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Olnm4k7kAcMG8QsC0lzQKFPnc2H0XUQZNOvA+P3sxGpRU4/R53bZ64kRCd9A9GtFVffX2d6EPEraE1KtUj6xAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-02T10:30:25.850982Z"},"content_sha256":"573e520595f44c9f1781c503209940d28022d48be7b56381d7f0f31c72139381","schema_version":"1.0","event_id":"sha256:573e520595f44c9f1781c503209940d28022d48be7b56381d7f0f31c72139381"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:N37J334I3AWWBAVFAHSIFVS5UZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Solving Tolman-Oppenheimer-Volkoff equations in f(T) gravity: a novel approach applied to some realistic equations of state","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO","hep-th"],"primary_cat":"gr-qc","authors_text":"Hemily G. M. Fortes, Jos\\'e C. N. de Araujo","submitted_at":"2021-09-02T18:03:44Z","abstract_excerpt":"There are many ways to probe alternative theories of gravity, namely, via: experimental tests at solar system scale, cosmological data and models, gravitational waves and compact objects. In the present paper we consider a model of gravity with torsion $f(T)$ applied to compact objects such as neutron stars (NSs) for a couple of realistic equations of state (EOS). To do so we follow our previous articles, in which we show how to model compact stars in this $f(T)$ gravity by obtaining its corresponding Tolman-Oppenheimer-Volkof equations and applying this prescription to model polytropic compac"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2109.01155","kind":"arxiv","version":4},"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/2109.01155/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":"2026-07-05T05:13:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TNQRm3prYtX6o+ncsiabOfjeS5ghhTC/lcdgzOvH9p/rbXLQ6bqUOSg4L/UUF0ikO4bF+qCVpsY9kCOrji+wBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-02T10:30:25.851892Z"},"content_sha256":"8598e01e5dbcb1b7cbb91679063357b64eebc7eb8160bede35af60539b5e80ec","schema_version":"1.0","event_id":"sha256:8598e01e5dbcb1b7cbb91679063357b64eebc7eb8160bede35af60539b5e80ec"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/N37J334I3AWWBAVFAHSIFVS5UZ/bundle.json","state_url":"https://pith.science/pith/N37J334I3AWWBAVFAHSIFVS5UZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/N37J334I3AWWBAVFAHSIFVS5UZ/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":"2026-08-02T10:30:25Z","links":{"resolver":"https://pith.science/pith/N37J334I3AWWBAVFAHSIFVS5UZ","bundle":"https://pith.science/pith/N37J334I3AWWBAVFAHSIFVS5UZ/bundle.json","state":"https://pith.science/pith/N37J334I3AWWBAVFAHSIFVS5UZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/N37J334I3AWWBAVFAHSIFVS5UZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:N37J334I3AWWBAVFAHSIFVS5UZ","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":"f2d9be93fc33b38a2b04d54ede4e7bf4f74b88abf77284b278ad333ee21acaa8","cross_cats_sorted":["astro-ph.CO","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2021-09-02T18:03:44Z","title_canon_sha256":"e10ff11af67a958a052e0437be69bf83ed3b32d91bd15bd3ee57b3f588c627d8"},"schema_version":"1.0","source":{"id":"2109.01155","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2109.01155","created_at":"2026-07-05T05:13:18Z"},{"alias_kind":"arxiv_version","alias_value":"2109.01155v4","created_at":"2026-07-05T05:13:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2109.01155","created_at":"2026-07-05T05:13:18Z"},{"alias_kind":"pith_short_12","alias_value":"N37J334I3AWW","created_at":"2026-07-05T05:13:18Z"},{"alias_kind":"pith_short_16","alias_value":"N37J334I3AWWBAVF","created_at":"2026-07-05T05:13:18Z"},{"alias_kind":"pith_short_8","alias_value":"N37J334I","created_at":"2026-07-05T05:13:18Z"}],"graph_snapshots":[{"event_id":"sha256:8598e01e5dbcb1b7cbb91679063357b64eebc7eb8160bede35af60539b5e80ec","target":"graph","created_at":"2026-07-05T05:13:18Z","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/2109.01155/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"There are many ways to probe alternative theories of gravity, namely, via: experimental tests at solar system scale, cosmological data and models, gravitational waves and compact objects. In the present paper we consider a model of gravity with torsion $f(T)$ applied to compact objects such as neutron stars (NSs) for a couple of realistic equations of state (EOS). To do so we follow our previous articles, in which we show how to model compact stars in this $f(T)$ gravity by obtaining its corresponding Tolman-Oppenheimer-Volkof equations and applying this prescription to model polytropic compac","authors_text":"Hemily G. M. Fortes, Jos\\'e C. N. de Araujo","cross_cats":["astro-ph.CO","hep-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2021-09-02T18:03:44Z","title":"Solving Tolman-Oppenheimer-Volkoff equations in f(T) gravity: a novel approach applied to some realistic equations of state"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2109.01155","kind":"arxiv","version":4},"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":"sha256:573e520595f44c9f1781c503209940d28022d48be7b56381d7f0f31c72139381","target":"record","created_at":"2026-07-05T05:13:18Z","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":"f2d9be93fc33b38a2b04d54ede4e7bf4f74b88abf77284b278ad333ee21acaa8","cross_cats_sorted":["astro-ph.CO","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2021-09-02T18:03:44Z","title_canon_sha256":"e10ff11af67a958a052e0437be69bf83ed3b32d91bd15bd3ee57b3f588c627d8"},"schema_version":"1.0","source":{"id":"2109.01155","kind":"arxiv","version":4}},"canonical_sha256":"6efe9def88d82d6082a501e482d65da64d2737fa11693aa968b0d62580a91834","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6efe9def88d82d6082a501e482d65da64d2737fa11693aa968b0d62580a91834","first_computed_at":"2026-07-05T05:13:18.186872Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:13:18.186872Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"0wfnWsvQPGnU0G2y0I3Y8G5BBL1qwZ51KTEo4WgaElJuTcYvQOasMlxLltNggNcMQtDcnvVd8nzunVdCycPwAg==","signature_status":"signed_v1","signed_at":"2026-07-05T05:13:18.187276Z","signed_message":"canonical_sha256_bytes"},"source_id":"2109.01155","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:573e520595f44c9f1781c503209940d28022d48be7b56381d7f0f31c72139381","sha256:8598e01e5dbcb1b7cbb91679063357b64eebc7eb8160bede35af60539b5e80ec"],"state_sha256":"6c018db36ab7e084c7ac8c58daf1426d5707e359bfb69b7f7331545240f7bdd5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kZ8YIBiT8CZppco9yTbmCQnqtPD9GT3hNd28CVEIhjJmwkfldJiH3Yu24S8CGqeot9VDHLWa0wzLuB2mfifpBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-02T10:30:25.856648Z","bundle_sha256":"802a50dbd3653796cf53e40519b5f6b83f816fcc04178239ac70f31a897a06f5"}}