{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:NXUF5U4E6TCOJDANPGQ6FSPFSB","short_pith_number":"pith:NXUF5U4E","canonical_record":{"source":{"id":"1307.3922","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2013-07-15T13:06:26Z","cross_cats_sorted":[],"title_canon_sha256":"798dbf953254b22d5973a648014752b38b5ca3d0657d908faf9a0db4fcf05db3","abstract_canon_sha256":"7e74a33eb0c15f6c173e2a1abb59ee6e3116dd812c5275aebe6c3af4c2406a20"},"schema_version":"1.0"},"canonical_sha256":"6de85ed384f4c4e48c0d79a1e2c9e590610323aa29bff2c4a5c4019991b7c2c2","source":{"kind":"arxiv","id":"1307.3922","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1307.3922","created_at":"2026-05-18T02:34:52Z"},{"alias_kind":"arxiv_version","alias_value":"1307.3922v2","created_at":"2026-05-18T02:34:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1307.3922","created_at":"2026-05-18T02:34:52Z"},{"alias_kind":"pith_short_12","alias_value":"NXUF5U4E6TCO","created_at":"2026-05-18T12:27:52Z"},{"alias_kind":"pith_short_16","alias_value":"NXUF5U4E6TCOJDAN","created_at":"2026-05-18T12:27:52Z"},{"alias_kind":"pith_short_8","alias_value":"NXUF5U4E","created_at":"2026-05-18T12:27:52Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:NXUF5U4E6TCOJDANPGQ6FSPFSB","target":"record","payload":{"canonical_record":{"source":{"id":"1307.3922","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2013-07-15T13:06:26Z","cross_cats_sorted":[],"title_canon_sha256":"798dbf953254b22d5973a648014752b38b5ca3d0657d908faf9a0db4fcf05db3","abstract_canon_sha256":"7e74a33eb0c15f6c173e2a1abb59ee6e3116dd812c5275aebe6c3af4c2406a20"},"schema_version":"1.0"},"canonical_sha256":"6de85ed384f4c4e48c0d79a1e2c9e590610323aa29bff2c4a5c4019991b7c2c2","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:34:52.658341Z","signature_b64":"x8lwO4WyjI5N4mH+TnoikVcK67lizS5N0sBlUCID69t4r9Wy/AUNMDClrOz+0lm89Oq1dqXKbvU6J+NHRympAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6de85ed384f4c4e48c0d79a1e2c9e590610323aa29bff2c4a5c4019991b7c2c2","last_reissued_at":"2026-05-18T02:34:52.657912Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:34:52.657912Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1307.3922","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":"2026-05-18T02:34:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GkB6MJ6qPtQGGqF9aFTwr1j8dCZgLzkktNwQWaQDm46d4hHxRsAyaNS7gMSygLYGxLTD6Ozh/+tJCFzzzFKsAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-26T02:40:29.802247Z"},"content_sha256":"74e6f909945c7b22a8cf0b9ee8ff0b0106b86434228da783f6de24c86b648846","schema_version":"1.0","event_id":"sha256:74e6f909945c7b22a8cf0b9ee8ff0b0106b86434228da783f6de24c86b648846"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:NXUF5U4E6TCOJDANPGQ6FSPFSB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The cosmology of a fundamental scalar","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"George Sparling, Jonathan Holland","submitted_at":"2013-07-15T13:06:26Z","abstract_excerpt":"We observe that the standard homogeneous cosmologies, those of Minkowski, de Sitter, and anti-de Sitter, which form the matrix for the Robertson--Walker scale factor, live naturally as isolated points inside a larger family of conformally flat metrics obtained by allowing a tensor containing the information of conformal symmetry breaking to be more general. So the standard cosmological metrics are parametrically unstable in this sense, and therefore unphysical. When we pass to the stable family of perturbed metrics, we immediately encounter a scalar field, which drives the conformal expansion "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1307.3922","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":"2026-05-18T02:34:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qrC2gqCBBxfWcZP4V7ljcvTa6RPciEPpdGFMw89Qp69VbVj5b9sV2vaEg80q/E1jMpUSdWxYbKqTkTiGRRZeDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-26T02:40:29.802777Z"},"content_sha256":"f07bfef9934088dba76673d83623a29770772bb29cb1bfec9453b40ff0cc6d60","schema_version":"1.0","event_id":"sha256:f07bfef9934088dba76673d83623a29770772bb29cb1bfec9453b40ff0cc6d60"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/NXUF5U4E6TCOJDANPGQ6FSPFSB/bundle.json","state_url":"https://pith.science/pith/NXUF5U4E6TCOJDANPGQ6FSPFSB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/NXUF5U4E6TCOJDANPGQ6FSPFSB/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":"2026-06-26T02:40:29Z","links":{"resolver":"https://pith.science/pith/NXUF5U4E6TCOJDANPGQ6FSPFSB","bundle":"https://pith.science/pith/NXUF5U4E6TCOJDANPGQ6FSPFSB/bundle.json","state":"https://pith.science/pith/NXUF5U4E6TCOJDANPGQ6FSPFSB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/NXUF5U4E6TCOJDANPGQ6FSPFSB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:NXUF5U4E6TCOJDANPGQ6FSPFSB","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":"7e74a33eb0c15f6c173e2a1abb59ee6e3116dd812c5275aebe6c3af4c2406a20","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2013-07-15T13:06:26Z","title_canon_sha256":"798dbf953254b22d5973a648014752b38b5ca3d0657d908faf9a0db4fcf05db3"},"schema_version":"1.0","source":{"id":"1307.3922","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1307.3922","created_at":"2026-05-18T02:34:52Z"},{"alias_kind":"arxiv_version","alias_value":"1307.3922v2","created_at":"2026-05-18T02:34:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1307.3922","created_at":"2026-05-18T02:34:52Z"},{"alias_kind":"pith_short_12","alias_value":"NXUF5U4E6TCO","created_at":"2026-05-18T12:27:52Z"},{"alias_kind":"pith_short_16","alias_value":"NXUF5U4E6TCOJDAN","created_at":"2026-05-18T12:27:52Z"},{"alias_kind":"pith_short_8","alias_value":"NXUF5U4E","created_at":"2026-05-18T12:27:52Z"}],"graph_snapshots":[{"event_id":"sha256:f07bfef9934088dba76673d83623a29770772bb29cb1bfec9453b40ff0cc6d60","target":"graph","created_at":"2026-05-18T02:34:52Z","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 observe that the standard homogeneous cosmologies, those of Minkowski, de Sitter, and anti-de Sitter, which form the matrix for the Robertson--Walker scale factor, live naturally as isolated points inside a larger family of conformally flat metrics obtained by allowing a tensor containing the information of conformal symmetry breaking to be more general. So the standard cosmological metrics are parametrically unstable in this sense, and therefore unphysical. When we pass to the stable family of perturbed metrics, we immediately encounter a scalar field, which drives the conformal expansion ","authors_text":"George Sparling, Jonathan Holland","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2013-07-15T13:06:26Z","title":"The cosmology of a fundamental scalar"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1307.3922","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":"sha256:74e6f909945c7b22a8cf0b9ee8ff0b0106b86434228da783f6de24c86b648846","target":"record","created_at":"2026-05-18T02:34:52Z","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":"7e74a33eb0c15f6c173e2a1abb59ee6e3116dd812c5275aebe6c3af4c2406a20","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2013-07-15T13:06:26Z","title_canon_sha256":"798dbf953254b22d5973a648014752b38b5ca3d0657d908faf9a0db4fcf05db3"},"schema_version":"1.0","source":{"id":"1307.3922","kind":"arxiv","version":2}},"canonical_sha256":"6de85ed384f4c4e48c0d79a1e2c9e590610323aa29bff2c4a5c4019991b7c2c2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6de85ed384f4c4e48c0d79a1e2c9e590610323aa29bff2c4a5c4019991b7c2c2","first_computed_at":"2026-05-18T02:34:52.657912Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:34:52.657912Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"x8lwO4WyjI5N4mH+TnoikVcK67lizS5N0sBlUCID69t4r9Wy/AUNMDClrOz+0lm89Oq1dqXKbvU6J+NHRympAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:34:52.658341Z","signed_message":"canonical_sha256_bytes"},"source_id":"1307.3922","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:74e6f909945c7b22a8cf0b9ee8ff0b0106b86434228da783f6de24c86b648846","sha256:f07bfef9934088dba76673d83623a29770772bb29cb1bfec9453b40ff0cc6d60"],"state_sha256":"733e6b32026643637e8a6da9114efddac807dca3d7fbfd2c304c0a9f3dbb58e7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cBPRzSFCktcwImOVmBH5//UOQREtz6ukXXycTlGj9k+zo6/nUW7aQEP2Yy7RopHTVQGo9bRpUxwbkLHc535QBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-26T02:40:29.805748Z","bundle_sha256":"fc08436b65cd531ba88d280c99a9108cd9e9dfaee62ba470a9aec2cd07021430"}}