{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:Z5L3MYLC55NASXEXTPGSAJK5PI","short_pith_number":"pith:Z5L3MYLC","canonical_record":{"source":{"id":"1303.3407","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2013-03-14T11:05:49Z","cross_cats_sorted":["hep-th"],"title_canon_sha256":"bc9cb1dfb06b49ad6dd5f445ac48215def6bf2184583663f2f9d178ce70b08bd","abstract_canon_sha256":"f316bbe8c05f94e37fb7b031aa3ab9956988a1180ab3380ce26fe557cfea4662"},"schema_version":"1.0"},"canonical_sha256":"cf57b66162ef5a095c979bcd20255d7a092ff835632e591b74766ce4ef48849d","source":{"kind":"arxiv","id":"1303.3407","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1303.3407","created_at":"2026-05-18T03:30:54Z"},{"alias_kind":"arxiv_version","alias_value":"1303.3407v1","created_at":"2026-05-18T03:30:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1303.3407","created_at":"2026-05-18T03:30:54Z"},{"alias_kind":"pith_short_12","alias_value":"Z5L3MYLC55NA","created_at":"2026-05-18T12:28:09Z"},{"alias_kind":"pith_short_16","alias_value":"Z5L3MYLC55NASXEX","created_at":"2026-05-18T12:28:09Z"},{"alias_kind":"pith_short_8","alias_value":"Z5L3MYLC","created_at":"2026-05-18T12:28:09Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:Z5L3MYLC55NASXEXTPGSAJK5PI","target":"record","payload":{"canonical_record":{"source":{"id":"1303.3407","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2013-03-14T11:05:49Z","cross_cats_sorted":["hep-th"],"title_canon_sha256":"bc9cb1dfb06b49ad6dd5f445ac48215def6bf2184583663f2f9d178ce70b08bd","abstract_canon_sha256":"f316bbe8c05f94e37fb7b031aa3ab9956988a1180ab3380ce26fe557cfea4662"},"schema_version":"1.0"},"canonical_sha256":"cf57b66162ef5a095c979bcd20255d7a092ff835632e591b74766ce4ef48849d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:30:54.628833Z","signature_b64":"wF3VzxnT8J6qIZyhY9bwB7OOcuEqVALLUbB3fDq5oqk4bqhj9dYItPx+l2S/th2icd0/Yg8qiozJ0XTmNjaZDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"cf57b66162ef5a095c979bcd20255d7a092ff835632e591b74766ce4ef48849d","last_reissued_at":"2026-05-18T03:30:54.628169Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:30:54.628169Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1303.3407","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":"2026-05-18T03:30:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"chCM4GorZThQLhJ68ah95+wE9iYrJP3DQ9IBT9c8mwMRXfC7lC0N8v2NYeU9rVjJqWakyIqdJ1THeqXhPQlRDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T20:46:20.157550Z"},"content_sha256":"660d6c4aa7dd48fcff3195abd1fcea0d9134bb0f28529995afb34a5643cd962b","schema_version":"1.0","event_id":"sha256:660d6c4aa7dd48fcff3195abd1fcea0d9134bb0f28529995afb34a5643cd962b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:Z5L3MYLC55NASXEXTPGSAJK5PI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Anisotropic fluid in a time dependent conformally flat spacetime","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-th"],"primary_cat":"gr-qc","authors_text":"Hristu Culetu","submitted_at":"2013-03-14T11:05:49Z","abstract_excerpt":"The special conformal transformation (composed by inversion - translation - inversion) is used to generate a time dependent conformally flat spacetime. In order to be an exact solution of Einstein's equations, we need as a source a stress tensor corresponding to an anisotropic fluid with negative regular energy density and positive pressures. For the static approximation, the generators of the infinitesimal transformation resemble those recently obtained by Majhi and Padmanabhan for the coordinate transformation leading to the \"near horizon\" Schwarzschild metric in Kruskal coordinates. The sta"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1303.3407","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":"2026-05-18T03:30:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cOhbZjzibJoMqSKtuNgKfjVZ3b/dj/ndL3A5keyXCatib6hCbQV10nVGXsU4LMg03SnEjEmFBN7wzTwaSBffDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T20:46:20.157928Z"},"content_sha256":"06907736a95b553055c67e935f43e17912b5de000e341d9b1cdba6bce89b455e","schema_version":"1.0","event_id":"sha256:06907736a95b553055c67e935f43e17912b5de000e341d9b1cdba6bce89b455e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/Z5L3MYLC55NASXEXTPGSAJK5PI/bundle.json","state_url":"https://pith.science/pith/Z5L3MYLC55NASXEXTPGSAJK5PI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/Z5L3MYLC55NASXEXTPGSAJK5PI/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":"2026-06-02T20:46:20Z","links":{"resolver":"https://pith.science/pith/Z5L3MYLC55NASXEXTPGSAJK5PI","bundle":"https://pith.science/pith/Z5L3MYLC55NASXEXTPGSAJK5PI/bundle.json","state":"https://pith.science/pith/Z5L3MYLC55NASXEXTPGSAJK5PI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/Z5L3MYLC55NASXEXTPGSAJK5PI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:Z5L3MYLC55NASXEXTPGSAJK5PI","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":"f316bbe8c05f94e37fb7b031aa3ab9956988a1180ab3380ce26fe557cfea4662","cross_cats_sorted":["hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2013-03-14T11:05:49Z","title_canon_sha256":"bc9cb1dfb06b49ad6dd5f445ac48215def6bf2184583663f2f9d178ce70b08bd"},"schema_version":"1.0","source":{"id":"1303.3407","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1303.3407","created_at":"2026-05-18T03:30:54Z"},{"alias_kind":"arxiv_version","alias_value":"1303.3407v1","created_at":"2026-05-18T03:30:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1303.3407","created_at":"2026-05-18T03:30:54Z"},{"alias_kind":"pith_short_12","alias_value":"Z5L3MYLC55NA","created_at":"2026-05-18T12:28:09Z"},{"alias_kind":"pith_short_16","alias_value":"Z5L3MYLC55NASXEX","created_at":"2026-05-18T12:28:09Z"},{"alias_kind":"pith_short_8","alias_value":"Z5L3MYLC","created_at":"2026-05-18T12:28:09Z"}],"graph_snapshots":[{"event_id":"sha256:06907736a95b553055c67e935f43e17912b5de000e341d9b1cdba6bce89b455e","target":"graph","created_at":"2026-05-18T03:30:54Z","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":"The special conformal transformation (composed by inversion - translation - inversion) is used to generate a time dependent conformally flat spacetime. In order to be an exact solution of Einstein's equations, we need as a source a stress tensor corresponding to an anisotropic fluid with negative regular energy density and positive pressures. For the static approximation, the generators of the infinitesimal transformation resemble those recently obtained by Majhi and Padmanabhan for the coordinate transformation leading to the \"near horizon\" Schwarzschild metric in Kruskal coordinates. The sta","authors_text":"Hristu Culetu","cross_cats":["hep-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2013-03-14T11:05:49Z","title":"Anisotropic fluid in a time dependent conformally flat spacetime"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1303.3407","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":"sha256:660d6c4aa7dd48fcff3195abd1fcea0d9134bb0f28529995afb34a5643cd962b","target":"record","created_at":"2026-05-18T03:30:54Z","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":"f316bbe8c05f94e37fb7b031aa3ab9956988a1180ab3380ce26fe557cfea4662","cross_cats_sorted":["hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2013-03-14T11:05:49Z","title_canon_sha256":"bc9cb1dfb06b49ad6dd5f445ac48215def6bf2184583663f2f9d178ce70b08bd"},"schema_version":"1.0","source":{"id":"1303.3407","kind":"arxiv","version":1}},"canonical_sha256":"cf57b66162ef5a095c979bcd20255d7a092ff835632e591b74766ce4ef48849d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"cf57b66162ef5a095c979bcd20255d7a092ff835632e591b74766ce4ef48849d","first_computed_at":"2026-05-18T03:30:54.628169Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:30:54.628169Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"wF3VzxnT8J6qIZyhY9bwB7OOcuEqVALLUbB3fDq5oqk4bqhj9dYItPx+l2S/th2icd0/Yg8qiozJ0XTmNjaZDw==","signature_status":"signed_v1","signed_at":"2026-05-18T03:30:54.628833Z","signed_message":"canonical_sha256_bytes"},"source_id":"1303.3407","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:660d6c4aa7dd48fcff3195abd1fcea0d9134bb0f28529995afb34a5643cd962b","sha256:06907736a95b553055c67e935f43e17912b5de000e341d9b1cdba6bce89b455e"],"state_sha256":"007af9b60462e262661c218b44d71bce9cdb585898977609c440efdbf778bde4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"N2/oFF/C+OtumbK7s4+3aWParjegTIWvCJHJBHqSBfK0egtJkyeGVr7pMFMG2aGgC9LQIg/PrTVYLfG6/nZgCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T20:46:20.160130Z","bundle_sha256":"f347851ebc05402352db7367824542ab2e8fc8ff15879231a311669be0ed42df"}}