{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:OF7Z5WHQLEUBLLHHNFKJ5OFBGE","short_pith_number":"pith:OF7Z5WHQ","canonical_record":{"source":{"id":"1702.04490","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2017-02-15T07:53:31Z","cross_cats_sorted":["astro-ph.CO","gr-qc"],"title_canon_sha256":"75320340c2c88d6f0fa00d5b812ffcb6ba96cae8e52bae5c4f728617dc0747fe","abstract_canon_sha256":"fde64ebf95b5ae050aa54b490b77d8711b5d1cdc3dc9431c43fbc3542a33939e"},"schema_version":"1.0"},"canonical_sha256":"717f9ed8f0592815ace769549eb8a1310d84cf511a217655f342c2de51357ff6","source":{"kind":"arxiv","id":"1702.04490","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1702.04490","created_at":"2026-05-18T00:24:31Z"},{"alias_kind":"arxiv_version","alias_value":"1702.04490v2","created_at":"2026-05-18T00:24:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1702.04490","created_at":"2026-05-18T00:24:31Z"},{"alias_kind":"pith_short_12","alias_value":"OF7Z5WHQLEUB","created_at":"2026-05-18T12:31:34Z"},{"alias_kind":"pith_short_16","alias_value":"OF7Z5WHQLEUBLLHH","created_at":"2026-05-18T12:31:34Z"},{"alias_kind":"pith_short_8","alias_value":"OF7Z5WHQ","created_at":"2026-05-18T12:31:34Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:OF7Z5WHQLEUBLLHHNFKJ5OFBGE","target":"record","payload":{"canonical_record":{"source":{"id":"1702.04490","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2017-02-15T07:53:31Z","cross_cats_sorted":["astro-ph.CO","gr-qc"],"title_canon_sha256":"75320340c2c88d6f0fa00d5b812ffcb6ba96cae8e52bae5c4f728617dc0747fe","abstract_canon_sha256":"fde64ebf95b5ae050aa54b490b77d8711b5d1cdc3dc9431c43fbc3542a33939e"},"schema_version":"1.0"},"canonical_sha256":"717f9ed8f0592815ace769549eb8a1310d84cf511a217655f342c2de51357ff6","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:24:31.501696Z","signature_b64":"0gtTwFk1st47p8diBx/bbHR18RLDQLhCcJOs1YUFCcoXTEYJb8uNwnfckOlSIwB+B9QvaRYJ23s7O0Vcf0PMAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"717f9ed8f0592815ace769549eb8a1310d84cf511a217655f342c2de51357ff6","last_reissued_at":"2026-05-18T00:24:31.501127Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:24:31.501127Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1702.04490","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:24:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lcgV+qgIGCgWQQfdq5WWEfbxKEtR7BHwUxU0kPp3j9PugQyBHOylv5QT4BvCHgN/Seo/Nf89zi4woAXjRu16Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-23T03:11:34.588116Z"},"content_sha256":"893410583b07d70e33112d6e534808aa2f8db777fb0dcc20055e6303b0d329b8","schema_version":"1.0","event_id":"sha256:893410583b07d70e33112d6e534808aa2f8db777fb0dcc20055e6303b0d329b8"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:OF7Z5WHQLEUBLLHHNFKJ5OFBGE","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Extending applicability of bimetric theory: chameleon bigravity","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO","gr-qc"],"primary_cat":"hep-th","authors_text":"Antonio De Felice, Jean-Philippe Uzan, Shinji Mukohyama","submitted_at":"2017-02-15T07:53:31Z","abstract_excerpt":"This article extends bimetric formulations of massive gravity to make the mass of the graviton to depend on its environment. This minimal extension offers a novel way to reconcile massive gravity with local tests of general relativity without invoking the Vainshtein mechanism. On cosmological scales, it is argued that the model is stable and that it circumvents the Higuchi bound, hence relaxing the constraints on the parameter space. Moreover, with this extension the strong coupling scale is also environmentally dependent in such a way that it is kept sufficiently higher than the expansion rat"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1702.04490","kind":"arxiv","version":2},"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":"2026-05-18T00:24:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZD7mbr86H2E90plY7mLWrXGZc7vas3XMbtfphkOrO/MxyeBkQ8EhF3+LPt4YlI07JzacY+AgcxAuScIIuDHdCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-23T03:11:34.588829Z"},"content_sha256":"6b6c9893208e6021255a7cbbe3f16d118b5a2e60d80fdace3d3ff257e9acba47","schema_version":"1.0","event_id":"sha256:6b6c9893208e6021255a7cbbe3f16d118b5a2e60d80fdace3d3ff257e9acba47"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/OF7Z5WHQLEUBLLHHNFKJ5OFBGE/bundle.json","state_url":"https://pith.science/pith/OF7Z5WHQLEUBLLHHNFKJ5OFBGE/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/OF7Z5WHQLEUBLLHHNFKJ5OFBGE/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":"2026-05-23T03:11:34Z","links":{"resolver":"https://pith.science/pith/OF7Z5WHQLEUBLLHHNFKJ5OFBGE","bundle":"https://pith.science/pith/OF7Z5WHQLEUBLLHHNFKJ5OFBGE/bundle.json","state":"https://pith.science/pith/OF7Z5WHQLEUBLLHHNFKJ5OFBGE/state.json","well_known_bundle":"https://pith.science/.well-known/pith/OF7Z5WHQLEUBLLHHNFKJ5OFBGE/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:OF7Z5WHQLEUBLLHHNFKJ5OFBGE","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":"fde64ebf95b5ae050aa54b490b77d8711b5d1cdc3dc9431c43fbc3542a33939e","cross_cats_sorted":["astro-ph.CO","gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2017-02-15T07:53:31Z","title_canon_sha256":"75320340c2c88d6f0fa00d5b812ffcb6ba96cae8e52bae5c4f728617dc0747fe"},"schema_version":"1.0","source":{"id":"1702.04490","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1702.04490","created_at":"2026-05-18T00:24:31Z"},{"alias_kind":"arxiv_version","alias_value":"1702.04490v2","created_at":"2026-05-18T00:24:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1702.04490","created_at":"2026-05-18T00:24:31Z"},{"alias_kind":"pith_short_12","alias_value":"OF7Z5WHQLEUB","created_at":"2026-05-18T12:31:34Z"},{"alias_kind":"pith_short_16","alias_value":"OF7Z5WHQLEUBLLHH","created_at":"2026-05-18T12:31:34Z"},{"alias_kind":"pith_short_8","alias_value":"OF7Z5WHQ","created_at":"2026-05-18T12:31:34Z"}],"graph_snapshots":[{"event_id":"sha256:6b6c9893208e6021255a7cbbe3f16d118b5a2e60d80fdace3d3ff257e9acba47","target":"graph","created_at":"2026-05-18T00:24:31Z","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":"This article extends bimetric formulations of massive gravity to make the mass of the graviton to depend on its environment. This minimal extension offers a novel way to reconcile massive gravity with local tests of general relativity without invoking the Vainshtein mechanism. On cosmological scales, it is argued that the model is stable and that it circumvents the Higuchi bound, hence relaxing the constraints on the parameter space. Moreover, with this extension the strong coupling scale is also environmentally dependent in such a way that it is kept sufficiently higher than the expansion rat","authors_text":"Antonio De Felice, Jean-Philippe Uzan, Shinji Mukohyama","cross_cats":["astro-ph.CO","gr-qc"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2017-02-15T07:53:31Z","title":"Extending applicability of bimetric theory: chameleon bigravity"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1702.04490","kind":"arxiv","version":2},"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":"sha256:893410583b07d70e33112d6e534808aa2f8db777fb0dcc20055e6303b0d329b8","target":"record","created_at":"2026-05-18T00:24:31Z","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":"fde64ebf95b5ae050aa54b490b77d8711b5d1cdc3dc9431c43fbc3542a33939e","cross_cats_sorted":["astro-ph.CO","gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2017-02-15T07:53:31Z","title_canon_sha256":"75320340c2c88d6f0fa00d5b812ffcb6ba96cae8e52bae5c4f728617dc0747fe"},"schema_version":"1.0","source":{"id":"1702.04490","kind":"arxiv","version":2}},"canonical_sha256":"717f9ed8f0592815ace769549eb8a1310d84cf511a217655f342c2de51357ff6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"717f9ed8f0592815ace769549eb8a1310d84cf511a217655f342c2de51357ff6","first_computed_at":"2026-05-18T00:24:31.501127Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:24:31.501127Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"0gtTwFk1st47p8diBx/bbHR18RLDQLhCcJOs1YUFCcoXTEYJb8uNwnfckOlSIwB+B9QvaRYJ23s7O0Vcf0PMAw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:24:31.501696Z","signed_message":"canonical_sha256_bytes"},"source_id":"1702.04490","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:893410583b07d70e33112d6e534808aa2f8db777fb0dcc20055e6303b0d329b8","sha256:6b6c9893208e6021255a7cbbe3f16d118b5a2e60d80fdace3d3ff257e9acba47"],"state_sha256":"82dce7e8d6ecaa3d9d896a4c8d9786065d90231913da74f19462dc2652e0e2f5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/BWFwY0SXNE2INcYfWqiRlWNcIE6tV5Age04siDtYnDu7X4GQaEBHk92Toyvp2k8r6qXcVy3IU+ou/GhCLzoCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-23T03:11:34.592814Z","bundle_sha256":"5fe2ba12a13bf9da5583bc0820a3186a759937ead7dc165159367e26d8e5dddd"}}