{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:TNNUN3N25EPVEQINFN7ULVO5ZS","short_pith_number":"pith:TNNUN3N2","canonical_record":{"source":{"id":"1810.07678","kind":"arxiv","version":3},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"gr-qc","submitted_at":"2018-10-17T17:27:50Z","cross_cats_sorted":[],"title_canon_sha256":"65ed652da2f4a94210022d7639ebded26dbcc88eed64d5b8d40e8bd63f3162b3","abstract_canon_sha256":"79eddc9a14965c24715b6175fad2f3aa591eb2fa21c063cb4fdae910c02f6321"},"schema_version":"1.0"},"canonical_sha256":"9b5b46edbae91f52410d2b7f45d5ddcc8c3bf675d6c9ec0483d23a110e62f7dd","source":{"kind":"arxiv","id":"1810.07678","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1810.07678","created_at":"2026-05-17T23:47:29Z"},{"alias_kind":"arxiv_version","alias_value":"1810.07678v3","created_at":"2026-05-17T23:47:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.07678","created_at":"2026-05-17T23:47:29Z"},{"alias_kind":"pith_short_12","alias_value":"TNNUN3N25EPV","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_16","alias_value":"TNNUN3N25EPVEQIN","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_8","alias_value":"TNNUN3N2","created_at":"2026-05-18T12:32:53Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:TNNUN3N25EPVEQINFN7ULVO5ZS","target":"record","payload":{"canonical_record":{"source":{"id":"1810.07678","kind":"arxiv","version":3},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"gr-qc","submitted_at":"2018-10-17T17:27:50Z","cross_cats_sorted":[],"title_canon_sha256":"65ed652da2f4a94210022d7639ebded26dbcc88eed64d5b8d40e8bd63f3162b3","abstract_canon_sha256":"79eddc9a14965c24715b6175fad2f3aa591eb2fa21c063cb4fdae910c02f6321"},"schema_version":"1.0"},"canonical_sha256":"9b5b46edbae91f52410d2b7f45d5ddcc8c3bf675d6c9ec0483d23a110e62f7dd","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:47:29.953603Z","signature_b64":"r/XoKJKzlbHZe83IwwZ8qTis6uNhuA/MJnPTX1RumGYVkVaaeGvqzqNsUSCXGyFSWu1eiUa9RzbLOsRmVA+HCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9b5b46edbae91f52410d2b7f45d5ddcc8c3bf675d6c9ec0483d23a110e62f7dd","last_reissued_at":"2026-05-17T23:47:29.953005Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:47:29.953005Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1810.07678","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:47:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FYUe2LkjRotfHPb3tQA8zPhg8uD42tJOW0pmtDZISdJUjj8HxDBmI4PAp9bYpcgKhSMNF7uJD/Mt6eRYjwSjBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T19:12:43.216428Z"},"content_sha256":"e7403ffbb00fce23571348f05297f850571d58e26915bb88281db3b5883a781e","schema_version":"1.0","event_id":"sha256:e7403ffbb00fce23571348f05297f850571d58e26915bb88281db3b5883a781e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:TNNUN3N25EPVEQINFN7ULVO5ZS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Exploring physical features of anisotropic strange stars beyond standard maximum mass limit in $f\\left(R,\\mathcal{T}\\right)$ gravity","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"Debabrata Deb, Maxim Khlopov, P.H.R.S. Moraes, Saibal Ray, Sergei V. Ketov, S.K. Maurya","submitted_at":"2018-10-17T17:27:50Z","abstract_excerpt":"We study a specific model of anisotropic strange stars in the modified $f\\left(R,\\mathcal{T}\\right)$-type gravity by deriving solutions to the modified Einstein field equations representing a spherically symmetric anisotropic stellar object. We take a standard assumption that $f(R,\\mathcal{T})=R+2\\chi\\mathcal{T}$, where $R$ is Ricci scalar, $\\mathcal{T}$ is the trace of the energy-momentum tensor of matter, and $\\chi$ is a coupling constant. To obtain our solution to the modified Einstein equations, we successfully apply the `embedding class 1' techniques. We also consider the case when the st"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.07678","kind":"arxiv","version":3},"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":"2026-05-17T23:47:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rP8PHPkRbJgYYQ6dqPbhqmfN3KIbOg1EOnbSGReSLBNetSg+phs77xNtzGbkviodjA2+K+7EO6B/TuHzY57DAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T19:12:43.216826Z"},"content_sha256":"367dde9c9d9413b4dc2f8eef75cd3a744d2cfe41d800fa5466367711519a40ea","schema_version":"1.0","event_id":"sha256:367dde9c9d9413b4dc2f8eef75cd3a744d2cfe41d800fa5466367711519a40ea"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TNNUN3N25EPVEQINFN7ULVO5ZS/bundle.json","state_url":"https://pith.science/pith/TNNUN3N25EPVEQINFN7ULVO5ZS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TNNUN3N25EPVEQINFN7ULVO5ZS/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":"2026-05-26T19:12:43Z","links":{"resolver":"https://pith.science/pith/TNNUN3N25EPVEQINFN7ULVO5ZS","bundle":"https://pith.science/pith/TNNUN3N25EPVEQINFN7ULVO5ZS/bundle.json","state":"https://pith.science/pith/TNNUN3N25EPVEQINFN7ULVO5ZS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TNNUN3N25EPVEQINFN7ULVO5ZS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:TNNUN3N25EPVEQINFN7ULVO5ZS","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":"79eddc9a14965c24715b6175fad2f3aa591eb2fa21c063cb4fdae910c02f6321","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"gr-qc","submitted_at":"2018-10-17T17:27:50Z","title_canon_sha256":"65ed652da2f4a94210022d7639ebded26dbcc88eed64d5b8d40e8bd63f3162b3"},"schema_version":"1.0","source":{"id":"1810.07678","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1810.07678","created_at":"2026-05-17T23:47:29Z"},{"alias_kind":"arxiv_version","alias_value":"1810.07678v3","created_at":"2026-05-17T23:47:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.07678","created_at":"2026-05-17T23:47:29Z"},{"alias_kind":"pith_short_12","alias_value":"TNNUN3N25EPV","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_16","alias_value":"TNNUN3N25EPVEQIN","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_8","alias_value":"TNNUN3N2","created_at":"2026-05-18T12:32:53Z"}],"graph_snapshots":[{"event_id":"sha256:367dde9c9d9413b4dc2f8eef75cd3a744d2cfe41d800fa5466367711519a40ea","target":"graph","created_at":"2026-05-17T23:47:29Z","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 study a specific model of anisotropic strange stars in the modified $f\\left(R,\\mathcal{T}\\right)$-type gravity by deriving solutions to the modified Einstein field equations representing a spherically symmetric anisotropic stellar object. We take a standard assumption that $f(R,\\mathcal{T})=R+2\\chi\\mathcal{T}$, where $R$ is Ricci scalar, $\\mathcal{T}$ is the trace of the energy-momentum tensor of matter, and $\\chi$ is a coupling constant. To obtain our solution to the modified Einstein equations, we successfully apply the `embedding class 1' techniques. We also consider the case when the st","authors_text":"Debabrata Deb, Maxim Khlopov, P.H.R.S. Moraes, Saibal Ray, Sergei V. Ketov, S.K. Maurya","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"gr-qc","submitted_at":"2018-10-17T17:27:50Z","title":"Exploring physical features of anisotropic strange stars beyond standard maximum mass limit in $f\\left(R,\\mathcal{T}\\right)$ gravity"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.07678","kind":"arxiv","version":3},"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:e7403ffbb00fce23571348f05297f850571d58e26915bb88281db3b5883a781e","target":"record","created_at":"2026-05-17T23:47:29Z","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":"79eddc9a14965c24715b6175fad2f3aa591eb2fa21c063cb4fdae910c02f6321","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"gr-qc","submitted_at":"2018-10-17T17:27:50Z","title_canon_sha256":"65ed652da2f4a94210022d7639ebded26dbcc88eed64d5b8d40e8bd63f3162b3"},"schema_version":"1.0","source":{"id":"1810.07678","kind":"arxiv","version":3}},"canonical_sha256":"9b5b46edbae91f52410d2b7f45d5ddcc8c3bf675d6c9ec0483d23a110e62f7dd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9b5b46edbae91f52410d2b7f45d5ddcc8c3bf675d6c9ec0483d23a110e62f7dd","first_computed_at":"2026-05-17T23:47:29.953005Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:47:29.953005Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"r/XoKJKzlbHZe83IwwZ8qTis6uNhuA/MJnPTX1RumGYVkVaaeGvqzqNsUSCXGyFSWu1eiUa9RzbLOsRmVA+HCA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:47:29.953603Z","signed_message":"canonical_sha256_bytes"},"source_id":"1810.07678","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e7403ffbb00fce23571348f05297f850571d58e26915bb88281db3b5883a781e","sha256:367dde9c9d9413b4dc2f8eef75cd3a744d2cfe41d800fa5466367711519a40ea"],"state_sha256":"0d16127970f18bd94c9407ab178c651bd0df3199ba3daa50570018914b0c4d14"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SMgd0QkobVer/ZJmWiPTzdGusd+cMosRy9s1li8gcOfk30Ai1TwaCvh+GYw6WR3ToJq+1FxdV5QR60wJdhW+AQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T19:12:43.219382Z","bundle_sha256":"c84b1c2b2315d65af66511d8684430907e1bc6677c83b0003a3c0e0fdcdeeb87"}}