{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:LPVJEDSMQPTSMHQTQKANSMVNU5","short_pith_number":"pith:LPVJEDSM","canonical_record":{"source":{"id":"1504.06083","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2015-04-23T08:40:15Z","cross_cats_sorted":[],"title_canon_sha256":"a1b4521f3eb48ce7fe871a3b219397f13ccc70ede3f807895619c6bf5ce1494b","abstract_canon_sha256":"e5541da123c85807ddf81c475af3099c7d2c26414b5aab0237c84c018402de31"},"schema_version":"1.0"},"canonical_sha256":"5bea920e4c83e7261e138280d932ada753ab5045e9adfa08dbde86b5bbbbb36c","source":{"kind":"arxiv","id":"1504.06083","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1504.06083","created_at":"2026-05-18T01:37:44Z"},{"alias_kind":"arxiv_version","alias_value":"1504.06083v1","created_at":"2026-05-18T01:37:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1504.06083","created_at":"2026-05-18T01:37:44Z"},{"alias_kind":"pith_short_12","alias_value":"LPVJEDSMQPTS","created_at":"2026-05-18T12:29:29Z"},{"alias_kind":"pith_short_16","alias_value":"LPVJEDSMQPTSMHQT","created_at":"2026-05-18T12:29:29Z"},{"alias_kind":"pith_short_8","alias_value":"LPVJEDSM","created_at":"2026-05-18T12:29:29Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:LPVJEDSMQPTSMHQTQKANSMVNU5","target":"record","payload":{"canonical_record":{"source":{"id":"1504.06083","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2015-04-23T08:40:15Z","cross_cats_sorted":[],"title_canon_sha256":"a1b4521f3eb48ce7fe871a3b219397f13ccc70ede3f807895619c6bf5ce1494b","abstract_canon_sha256":"e5541da123c85807ddf81c475af3099c7d2c26414b5aab0237c84c018402de31"},"schema_version":"1.0"},"canonical_sha256":"5bea920e4c83e7261e138280d932ada753ab5045e9adfa08dbde86b5bbbbb36c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:37:44.274114Z","signature_b64":"HU2DQbYx3JsZ/3mboIAsliM+Pe3sL0wsHPKaj6RYiGHgaduDCWMVWh4+8gqLUGSLbLMzu+VNT1Rw/24h1w7jDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5bea920e4c83e7261e138280d932ada753ab5045e9adfa08dbde86b5bbbbb36c","last_reissued_at":"2026-05-18T01:37:44.273647Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:37:44.273647Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1504.06083","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":"2026-05-18T01:37:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1mQGT/8IpF4klwgFtRbjlVq+nu19FK/SZx21sNtr3l3ddv3ja4s3iBC9ITbdU6ViFTcz41YoOp/T3O4s0txAAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T13:20:07.348685Z"},"content_sha256":"09f02a042db573a5ff6dfa94a833ddb36cd2d0ff0982ffe58b222fa63147a265","schema_version":"1.0","event_id":"sha256:09f02a042db573a5ff6dfa94a833ddb36cd2d0ff0982ffe58b222fa63147a265"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:LPVJEDSMQPTSMHQTQKANSMVNU5","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"From Lorentz-Chern-Simons to Massive Gravity in 2+1 Dimensions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-th","authors_text":"Adolfo Toloza, Gaston Giribet, Jorge Zanelli, Sim\\'on del Pino","submitted_at":"2015-04-23T08:40:15Z","abstract_excerpt":"We propose a generalization of Chiral Gravity, which follows from considering a Chern-Simons action for the spin connection with anti-symmetric contorsion. The theory corresponds to Topologically Massive Gravity at the chiral point non-minimally coupled to an additional scalar mode that gathers the torsion degree of freedom. In this setup, the effective cosmological constant (the inverse of the curvature radius of maximally symmetric solutions) is either negative or zero, and it enters as an integration constant associated to the value of the contorsion at infinity. We explain how this is not "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1504.06083","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":"2026-05-18T01:37:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mKcx0Iry/Mdww52fTxEYIAQC56FzPBFEs8sntOXoPhDM4zdTDRCySkeudlzrSHg9ySRhcSEIuKcsgpxog8a2Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T13:20:07.349035Z"},"content_sha256":"eab10ba5b4cff72a5226592287d0b81fb387c595ab9b12b077934644660d68d4","schema_version":"1.0","event_id":"sha256:eab10ba5b4cff72a5226592287d0b81fb387c595ab9b12b077934644660d68d4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/LPVJEDSMQPTSMHQTQKANSMVNU5/bundle.json","state_url":"https://pith.science/pith/LPVJEDSMQPTSMHQTQKANSMVNU5/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/LPVJEDSMQPTSMHQTQKANSMVNU5/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":"2026-06-04T13:20:07Z","links":{"resolver":"https://pith.science/pith/LPVJEDSMQPTSMHQTQKANSMVNU5","bundle":"https://pith.science/pith/LPVJEDSMQPTSMHQTQKANSMVNU5/bundle.json","state":"https://pith.science/pith/LPVJEDSMQPTSMHQTQKANSMVNU5/state.json","well_known_bundle":"https://pith.science/.well-known/pith/LPVJEDSMQPTSMHQTQKANSMVNU5/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:LPVJEDSMQPTSMHQTQKANSMVNU5","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":"e5541da123c85807ddf81c475af3099c7d2c26414b5aab0237c84c018402de31","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2015-04-23T08:40:15Z","title_canon_sha256":"a1b4521f3eb48ce7fe871a3b219397f13ccc70ede3f807895619c6bf5ce1494b"},"schema_version":"1.0","source":{"id":"1504.06083","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1504.06083","created_at":"2026-05-18T01:37:44Z"},{"alias_kind":"arxiv_version","alias_value":"1504.06083v1","created_at":"2026-05-18T01:37:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1504.06083","created_at":"2026-05-18T01:37:44Z"},{"alias_kind":"pith_short_12","alias_value":"LPVJEDSMQPTS","created_at":"2026-05-18T12:29:29Z"},{"alias_kind":"pith_short_16","alias_value":"LPVJEDSMQPTSMHQT","created_at":"2026-05-18T12:29:29Z"},{"alias_kind":"pith_short_8","alias_value":"LPVJEDSM","created_at":"2026-05-18T12:29:29Z"}],"graph_snapshots":[{"event_id":"sha256:eab10ba5b4cff72a5226592287d0b81fb387c595ab9b12b077934644660d68d4","target":"graph","created_at":"2026-05-18T01:37:44Z","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 propose a generalization of Chiral Gravity, which follows from considering a Chern-Simons action for the spin connection with anti-symmetric contorsion. The theory corresponds to Topologically Massive Gravity at the chiral point non-minimally coupled to an additional scalar mode that gathers the torsion degree of freedom. In this setup, the effective cosmological constant (the inverse of the curvature radius of maximally symmetric solutions) is either negative or zero, and it enters as an integration constant associated to the value of the contorsion at infinity. We explain how this is not ","authors_text":"Adolfo Toloza, Gaston Giribet, Jorge Zanelli, Sim\\'on del Pino","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2015-04-23T08:40:15Z","title":"From Lorentz-Chern-Simons to Massive Gravity in 2+1 Dimensions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1504.06083","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":"sha256:09f02a042db573a5ff6dfa94a833ddb36cd2d0ff0982ffe58b222fa63147a265","target":"record","created_at":"2026-05-18T01:37:44Z","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":"e5541da123c85807ddf81c475af3099c7d2c26414b5aab0237c84c018402de31","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2015-04-23T08:40:15Z","title_canon_sha256":"a1b4521f3eb48ce7fe871a3b219397f13ccc70ede3f807895619c6bf5ce1494b"},"schema_version":"1.0","source":{"id":"1504.06083","kind":"arxiv","version":1}},"canonical_sha256":"5bea920e4c83e7261e138280d932ada753ab5045e9adfa08dbde86b5bbbbb36c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5bea920e4c83e7261e138280d932ada753ab5045e9adfa08dbde86b5bbbbb36c","first_computed_at":"2026-05-18T01:37:44.273647Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:37:44.273647Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"HU2DQbYx3JsZ/3mboIAsliM+Pe3sL0wsHPKaj6RYiGHgaduDCWMVWh4+8gqLUGSLbLMzu+VNT1Rw/24h1w7jDw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:37:44.274114Z","signed_message":"canonical_sha256_bytes"},"source_id":"1504.06083","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:09f02a042db573a5ff6dfa94a833ddb36cd2d0ff0982ffe58b222fa63147a265","sha256:eab10ba5b4cff72a5226592287d0b81fb387c595ab9b12b077934644660d68d4"],"state_sha256":"7ad6ad126a925ccfec5d9a76d67ada9a6b30eaef5fdb82b9f59de09b2523e9e1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"I4MaUIxVKSVikZCrn3cJI31Mn8ztWEmnG0yerIE16Udp3+zv3z45fTGQ2o5kOvtKgZuLBSIkkVKjzhEcnG+wCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-04T13:20:07.351009Z","bundle_sha256":"972b573be6e386b5ce51f97048813e8d6b282f8f8d5fb46ffdbb1d5152dad075"}}