{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:QN227PNHDRFRSV2QCUQB7LIFIW","short_pith_number":"pith:QN227PNH","canonical_record":{"source":{"id":"1208.3019","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2012-08-15T03:20:57Z","cross_cats_sorted":["astro-ph.CO","gr-qc"],"title_canon_sha256":"580484df4b6a1095b3c28411c9e97a6133b6efaa42105b8b9384346010117f24","abstract_canon_sha256":"7faf4e1f1acfa4288947d1b1a0543d2d28cdbc0dddfa026154a4d19f8861f702"},"schema_version":"1.0"},"canonical_sha256":"8375afbda71c4b19575015201fad05459fe983b60471215fc631cc90aa45b500","source":{"kind":"arxiv","id":"1208.3019","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1208.3019","created_at":"2026-05-18T03:43:20Z"},{"alias_kind":"arxiv_version","alias_value":"1208.3019v2","created_at":"2026-05-18T03:43:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1208.3019","created_at":"2026-05-18T03:43:20Z"},{"alias_kind":"pith_short_12","alias_value":"QN227PNHDRFR","created_at":"2026-05-18T12:27:18Z"},{"alias_kind":"pith_short_16","alias_value":"QN227PNHDRFRSV2Q","created_at":"2026-05-18T12:27:18Z"},{"alias_kind":"pith_short_8","alias_value":"QN227PNH","created_at":"2026-05-18T12:27:18Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:QN227PNHDRFRSV2QCUQB7LIFIW","target":"record","payload":{"canonical_record":{"source":{"id":"1208.3019","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2012-08-15T03:20:57Z","cross_cats_sorted":["astro-ph.CO","gr-qc"],"title_canon_sha256":"580484df4b6a1095b3c28411c9e97a6133b6efaa42105b8b9384346010117f24","abstract_canon_sha256":"7faf4e1f1acfa4288947d1b1a0543d2d28cdbc0dddfa026154a4d19f8861f702"},"schema_version":"1.0"},"canonical_sha256":"8375afbda71c4b19575015201fad05459fe983b60471215fc631cc90aa45b500","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:43:20.240160Z","signature_b64":"hdloKaxoEr2Irr7WZjdYiFgBbEoonvTb6jLSVsuyH5Go4R5yCOyP440bAEb3f7ioy15rRTHOxDpIoX5/mpKfDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8375afbda71c4b19575015201fad05459fe983b60471215fc631cc90aa45b500","last_reissued_at":"2026-05-18T03:43:20.239622Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:43:20.239622Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1208.3019","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":"2026-05-18T03:43:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+oDwe/eZDeX5es5ll1tHwpERrG9ifW9Mvw7oMCzo9oXf2URhyQsMLqDF8NqUzR57G8WL2UJKr7uIFYT+w9ZJDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T21:20:08.365227Z"},"content_sha256":"0e3229176143b639050d5cf54166be9bc9e782d42feaf5d9672bb18016cecfbe","schema_version":"1.0","event_id":"sha256:0e3229176143b639050d5cf54166be9bc9e782d42feaf5d9672bb18016cecfbe"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:QN227PNHDRFRSV2QCUQB7LIFIW","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Self-accelerating solutions in massive gravity on an isotropic reference metric","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO","gr-qc"],"primary_cat":"hep-th","authors_text":"Hayato Motohashi, Teruaki Suyama","submitted_at":"2012-08-15T03:20:57Z","abstract_excerpt":"Within the framework of the recently proposed ghost-free massive gravity, a cosmological constant-type self-accelerating solution has been obtained for Minkowski and de Sitter reference metrics. We ease the assumption on the reference metric and find the self-accelerating solution for the reference metric respecting only isotropy, thus considerably extending the range of known solutions."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1208.3019","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":"2026-05-18T03:43:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"oRQTjp812qgXJ7N//TZMVRB37q+MCpQYh1IJsIZ/IUUH2uMmEdjIsekt0xkiMvTol1DUN5gdfvZ09QqciPiCBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T21:20:08.365969Z"},"content_sha256":"842f7eb09279708ed01cfbd40db5b595845db5cab9ecf16092e388759df6a034","schema_version":"1.0","event_id":"sha256:842f7eb09279708ed01cfbd40db5b595845db5cab9ecf16092e388759df6a034"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QN227PNHDRFRSV2QCUQB7LIFIW/bundle.json","state_url":"https://pith.science/pith/QN227PNHDRFRSV2QCUQB7LIFIW/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QN227PNHDRFRSV2QCUQB7LIFIW/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":"2026-06-08T21:20:08Z","links":{"resolver":"https://pith.science/pith/QN227PNHDRFRSV2QCUQB7LIFIW","bundle":"https://pith.science/pith/QN227PNHDRFRSV2QCUQB7LIFIW/bundle.json","state":"https://pith.science/pith/QN227PNHDRFRSV2QCUQB7LIFIW/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QN227PNHDRFRSV2QCUQB7LIFIW/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:QN227PNHDRFRSV2QCUQB7LIFIW","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":"7faf4e1f1acfa4288947d1b1a0543d2d28cdbc0dddfa026154a4d19f8861f702","cross_cats_sorted":["astro-ph.CO","gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2012-08-15T03:20:57Z","title_canon_sha256":"580484df4b6a1095b3c28411c9e97a6133b6efaa42105b8b9384346010117f24"},"schema_version":"1.0","source":{"id":"1208.3019","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1208.3019","created_at":"2026-05-18T03:43:20Z"},{"alias_kind":"arxiv_version","alias_value":"1208.3019v2","created_at":"2026-05-18T03:43:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1208.3019","created_at":"2026-05-18T03:43:20Z"},{"alias_kind":"pith_short_12","alias_value":"QN227PNHDRFR","created_at":"2026-05-18T12:27:18Z"},{"alias_kind":"pith_short_16","alias_value":"QN227PNHDRFRSV2Q","created_at":"2026-05-18T12:27:18Z"},{"alias_kind":"pith_short_8","alias_value":"QN227PNH","created_at":"2026-05-18T12:27:18Z"}],"graph_snapshots":[{"event_id":"sha256:842f7eb09279708ed01cfbd40db5b595845db5cab9ecf16092e388759df6a034","target":"graph","created_at":"2026-05-18T03:43:20Z","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":"Within the framework of the recently proposed ghost-free massive gravity, a cosmological constant-type self-accelerating solution has been obtained for Minkowski and de Sitter reference metrics. We ease the assumption on the reference metric and find the self-accelerating solution for the reference metric respecting only isotropy, thus considerably extending the range of known solutions.","authors_text":"Hayato Motohashi, Teruaki Suyama","cross_cats":["astro-ph.CO","gr-qc"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2012-08-15T03:20:57Z","title":"Self-accelerating solutions in massive gravity on an isotropic reference metric"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1208.3019","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":"sha256:0e3229176143b639050d5cf54166be9bc9e782d42feaf5d9672bb18016cecfbe","target":"record","created_at":"2026-05-18T03:43:20Z","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":"7faf4e1f1acfa4288947d1b1a0543d2d28cdbc0dddfa026154a4d19f8861f702","cross_cats_sorted":["astro-ph.CO","gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2012-08-15T03:20:57Z","title_canon_sha256":"580484df4b6a1095b3c28411c9e97a6133b6efaa42105b8b9384346010117f24"},"schema_version":"1.0","source":{"id":"1208.3019","kind":"arxiv","version":2}},"canonical_sha256":"8375afbda71c4b19575015201fad05459fe983b60471215fc631cc90aa45b500","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8375afbda71c4b19575015201fad05459fe983b60471215fc631cc90aa45b500","first_computed_at":"2026-05-18T03:43:20.239622Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:43:20.239622Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"hdloKaxoEr2Irr7WZjdYiFgBbEoonvTb6jLSVsuyH5Go4R5yCOyP440bAEb3f7ioy15rRTHOxDpIoX5/mpKfDw==","signature_status":"signed_v1","signed_at":"2026-05-18T03:43:20.240160Z","signed_message":"canonical_sha256_bytes"},"source_id":"1208.3019","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0e3229176143b639050d5cf54166be9bc9e782d42feaf5d9672bb18016cecfbe","sha256:842f7eb09279708ed01cfbd40db5b595845db5cab9ecf16092e388759df6a034"],"state_sha256":"66030da0efbeac91f7e5b80bd718fb1913d473a483ecd66e10fe3fcf6e6728bb"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QwThasoKpckgzgK68gQqump1V80BMUk3cqH/0C93WBq9gXEQBpn5HpCAYFAzBRhI+T57nyVU0RU46KPDT77ADg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-08T21:20:08.369765Z","bundle_sha256":"bbc2726a899e6a18f00b8f924b1f415f48a811279aa6a84401c5a2fac0934bfb"}}