{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:F6I4LIFWMREKRQCMDDU55CFEYC","short_pith_number":"pith:F6I4LIFW","canonical_record":{"source":{"id":"2108.13695","kind":"arxiv","version":3},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-th","submitted_at":"2021-08-31T09:09:02Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"b0a0e2935fdd5c68b70b7fd2512093e45dd8af6295be93229e0ab37829e97b5e","abstract_canon_sha256":"66d97188365776f7aed0eb832327187b7e847f7b9dabb99795589e6b242307e0"},"schema_version":"1.0"},"canonical_sha256":"2f91c5a0b66448a8c04c18e9de88a4c0953d4bd3041220e4ad26d95654cfbcd1","source":{"kind":"arxiv","id":"2108.13695","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2108.13695","created_at":"2026-07-05T04:07:24Z"},{"alias_kind":"arxiv_version","alias_value":"2108.13695v3","created_at":"2026-07-05T04:07:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2108.13695","created_at":"2026-07-05T04:07:24Z"},{"alias_kind":"pith_short_12","alias_value":"F6I4LIFWMREK","created_at":"2026-07-05T04:07:24Z"},{"alias_kind":"pith_short_16","alias_value":"F6I4LIFWMREKRQCM","created_at":"2026-07-05T04:07:24Z"},{"alias_kind":"pith_short_8","alias_value":"F6I4LIFW","created_at":"2026-07-05T04:07:24Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:F6I4LIFWMREKRQCMDDU55CFEYC","target":"record","payload":{"canonical_record":{"source":{"id":"2108.13695","kind":"arxiv","version":3},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-th","submitted_at":"2021-08-31T09:09:02Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"b0a0e2935fdd5c68b70b7fd2512093e45dd8af6295be93229e0ab37829e97b5e","abstract_canon_sha256":"66d97188365776f7aed0eb832327187b7e847f7b9dabb99795589e6b242307e0"},"schema_version":"1.0"},"canonical_sha256":"2f91c5a0b66448a8c04c18e9de88a4c0953d4bd3041220e4ad26d95654cfbcd1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:07:24.566024Z","signature_b64":"v7EIAVEO25p1O0FniyW2UmVQOXFAIHgHUO8g/l2Ceu96q6GHjICVYNuMWNHdbCqvs8ffmNUXBzPRjiml1YPVCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2f91c5a0b66448a8c04c18e9de88a4c0953d4bd3041220e4ad26d95654cfbcd1","last_reissued_at":"2026-07-05T04:07:24.565441Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:07:24.565441Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2108.13695","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":"2026-07-05T04:07:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fMwW1czFFM3rzw0gH8aWWkn0EzH1gp665s3r/jmJ6uz/yStEXlJ3BvVOqDaXAtyqXoeBsPZ9zx339elmtZz2Dw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-19T14:48:21.770115Z"},"content_sha256":"f152ee490425f0f63fb070f2e88ff8212d976ddc89a09090a8ccae7a67f96f41","schema_version":"1.0","event_id":"sha256:f152ee490425f0f63fb070f2e88ff8212d976ddc89a09090a8ccae7a67f96f41"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:F6I4LIFWMREKRQCMDDU55CFEYC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Brief Note on Thurston Geometries in 3D Quadratic Curvature Theories","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["gr-qc"],"primary_cat":"hep-th","authors_text":"Deniz Olgu Devecioglu, Gokhan Alkac","submitted_at":"2021-08-31T09:09:02Z","abstract_excerpt":"We show that Thurston geometries are solutions to a large class of 3D quadratic curvature theories, where New Massive Gravity, which was studied in arXiv:2104.00754, is a special case."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2108.13695","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2108.13695/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":"2026-07-05T04:07:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FNrvvT2wFLJoqhbJby940ds9RSsbof2qqZ5qyLjMZRmSRzjMsPggOCemch4aC2YZmx34g1TcYeRF0y/Gv1sRCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-19T14:48:21.770623Z"},"content_sha256":"2a466fba1e583f67c51242ae89d02d1e06bc45af1ae6060fcf120036408f9ef5","schema_version":"1.0","event_id":"sha256:2a466fba1e583f67c51242ae89d02d1e06bc45af1ae6060fcf120036408f9ef5"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/F6I4LIFWMREKRQCMDDU55CFEYC/bundle.json","state_url":"https://pith.science/pith/F6I4LIFWMREKRQCMDDU55CFEYC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/F6I4LIFWMREKRQCMDDU55CFEYC/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":"2026-08-19T14:48:21Z","links":{"resolver":"https://pith.science/pith/F6I4LIFWMREKRQCMDDU55CFEYC","bundle":"https://pith.science/pith/F6I4LIFWMREKRQCMDDU55CFEYC/bundle.json","state":"https://pith.science/pith/F6I4LIFWMREKRQCMDDU55CFEYC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/F6I4LIFWMREKRQCMDDU55CFEYC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:F6I4LIFWMREKRQCMDDU55CFEYC","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":"66d97188365776f7aed0eb832327187b7e847f7b9dabb99795589e6b242307e0","cross_cats_sorted":["gr-qc"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-th","submitted_at":"2021-08-31T09:09:02Z","title_canon_sha256":"b0a0e2935fdd5c68b70b7fd2512093e45dd8af6295be93229e0ab37829e97b5e"},"schema_version":"1.0","source":{"id":"2108.13695","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2108.13695","created_at":"2026-07-05T04:07:24Z"},{"alias_kind":"arxiv_version","alias_value":"2108.13695v3","created_at":"2026-07-05T04:07:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2108.13695","created_at":"2026-07-05T04:07:24Z"},{"alias_kind":"pith_short_12","alias_value":"F6I4LIFWMREK","created_at":"2026-07-05T04:07:24Z"},{"alias_kind":"pith_short_16","alias_value":"F6I4LIFWMREKRQCM","created_at":"2026-07-05T04:07:24Z"},{"alias_kind":"pith_short_8","alias_value":"F6I4LIFW","created_at":"2026-07-05T04:07:24Z"}],"graph_snapshots":[{"event_id":"sha256:2a466fba1e583f67c51242ae89d02d1e06bc45af1ae6060fcf120036408f9ef5","target":"graph","created_at":"2026-07-05T04:07:24Z","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/2108.13695/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We show that Thurston geometries are solutions to a large class of 3D quadratic curvature theories, where New Massive Gravity, which was studied in arXiv:2104.00754, is a special case.","authors_text":"Deniz Olgu Devecioglu, Gokhan Alkac","cross_cats":["gr-qc"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-th","submitted_at":"2021-08-31T09:09:02Z","title":"Brief Note on Thurston Geometries in 3D Quadratic Curvature Theories"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2108.13695","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:f152ee490425f0f63fb070f2e88ff8212d976ddc89a09090a8ccae7a67f96f41","target":"record","created_at":"2026-07-05T04:07:24Z","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":"66d97188365776f7aed0eb832327187b7e847f7b9dabb99795589e6b242307e0","cross_cats_sorted":["gr-qc"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-th","submitted_at":"2021-08-31T09:09:02Z","title_canon_sha256":"b0a0e2935fdd5c68b70b7fd2512093e45dd8af6295be93229e0ab37829e97b5e"},"schema_version":"1.0","source":{"id":"2108.13695","kind":"arxiv","version":3}},"canonical_sha256":"2f91c5a0b66448a8c04c18e9de88a4c0953d4bd3041220e4ad26d95654cfbcd1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2f91c5a0b66448a8c04c18e9de88a4c0953d4bd3041220e4ad26d95654cfbcd1","first_computed_at":"2026-07-05T04:07:24.565441Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:07:24.565441Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"v7EIAVEO25p1O0FniyW2UmVQOXFAIHgHUO8g/l2Ceu96q6GHjICVYNuMWNHdbCqvs8ffmNUXBzPRjiml1YPVCA==","signature_status":"signed_v1","signed_at":"2026-07-05T04:07:24.566024Z","signed_message":"canonical_sha256_bytes"},"source_id":"2108.13695","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f152ee490425f0f63fb070f2e88ff8212d976ddc89a09090a8ccae7a67f96f41","sha256:2a466fba1e583f67c51242ae89d02d1e06bc45af1ae6060fcf120036408f9ef5"],"state_sha256":"2aa1e078a7382f689f53585cf685b60413a0433b9ecdf1303460f5bcc7800729"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"x6WeCqMkUY5biWbtm9T7EskQ+QpjVAoHtRLJu2DnLEDrwAYWI2NV3XpcH4eR2no+hrwk2zVXetl2I4gqJ+hAAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-19T14:48:21.775504Z","bundle_sha256":"996aea7465dbf3a81ef63fa15600bd232ac80ee3272613e74d6ae0554e07abe2"}}