{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:4YPDY2EE4QEINGUE53GB2SNXFM","short_pith_number":"pith:4YPDY2EE","canonical_record":{"source":{"id":"1009.3501","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2010-09-17T20:06:26Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"c8ae6839e39f3f24c96d93de93effdefa88e896fd1d27330629243966075904c","abstract_canon_sha256":"ae4d2d097b5a1817a1868d56847feb59c848d1373ee1295f0b41ae2f89c44381"},"schema_version":"1.0"},"canonical_sha256":"e61e3c6884e408869a84eecc1d49b72b005b595cdbeb4416ac0eae4747f22b1e","source":{"kind":"arxiv","id":"1009.3501","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1009.3501","created_at":"2026-05-18T04:32:45Z"},{"alias_kind":"arxiv_version","alias_value":"1009.3501v1","created_at":"2026-05-18T04:32:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1009.3501","created_at":"2026-05-18T04:32:45Z"},{"alias_kind":"pith_short_12","alias_value":"4YPDY2EE4QEI","created_at":"2026-05-18T12:26:04Z"},{"alias_kind":"pith_short_16","alias_value":"4YPDY2EE4QEINGUE","created_at":"2026-05-18T12:26:04Z"},{"alias_kind":"pith_short_8","alias_value":"4YPDY2EE","created_at":"2026-05-18T12:26:04Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:4YPDY2EE4QEINGUE53GB2SNXFM","target":"record","payload":{"canonical_record":{"source":{"id":"1009.3501","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2010-09-17T20:06:26Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"c8ae6839e39f3f24c96d93de93effdefa88e896fd1d27330629243966075904c","abstract_canon_sha256":"ae4d2d097b5a1817a1868d56847feb59c848d1373ee1295f0b41ae2f89c44381"},"schema_version":"1.0"},"canonical_sha256":"e61e3c6884e408869a84eecc1d49b72b005b595cdbeb4416ac0eae4747f22b1e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:32:45.589457Z","signature_b64":"Bxl/wxOwpExuvRIrGDXi/B2rUZthb21HUjgvZVQpAxa3YlpfRbtiT5NgH7Gih8OCgmAT8kbpo7cfrHNR7pA0BA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e61e3c6884e408869a84eecc1d49b72b005b595cdbeb4416ac0eae4747f22b1e","last_reissued_at":"2026-05-18T04:32:45.588834Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:32:45.588834Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1009.3501","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":"2026-05-18T04:32:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PdAEDw8etN8JsD22bTV2ly37Orw2Y45abLdijn6TqMFhPiXDPzzk8zGqtFpx2Ww7R7igkP9dx84VAlkwBcDnCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T00:03:06.149156Z"},"content_sha256":"589ab24e3c4f85537480214b453fc0601d95257950bf9e3e116c0901ee64ec2b","schema_version":"1.0","event_id":"sha256:589ab24e3c4f85537480214b453fc0601d95257950bf9e3e116c0901ee64ec2b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:4YPDY2EE4QEINGUE53GB2SNXFM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Ultra-Light Scalar Fields and the Growth of Structure in the Universe","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"hep-ph","authors_text":"David J. E. Marsh, Pedro G. Ferreira","submitted_at":"2010-09-17T20:06:26Z","abstract_excerpt":"Ultra-light scalar fields, with masses of between m=10^{-33} eV and m=10^{-22} eV, can affect the growth of structure in the Universe. We identify the different regimes in the evolution of ultra-light scalar fields, how they affect the expansion rate of the universe and how they affect the growth rate of cosmological perturbations. We find a number of interesting effects, discuss how they might arise in realistic scenarios of the early universe and comment on how they might be observed."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1009.3501","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":"2026-05-18T04:32:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Z4HMDKF6fVHN3oxv2rYm3Dvv2C0yDJSZNXQqdjV5G8kBghBIn630rnYmE0ES6ocTg4pxtf+RZ7UYvEtYPXnZAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T00:03:06.149881Z"},"content_sha256":"199101301e182f19bf7855adac4fadcec2fb89e8b19515ed5162906bf38013c3","schema_version":"1.0","event_id":"sha256:199101301e182f19bf7855adac4fadcec2fb89e8b19515ed5162906bf38013c3"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4YPDY2EE4QEINGUE53GB2SNXFM/bundle.json","state_url":"https://pith.science/pith/4YPDY2EE4QEINGUE53GB2SNXFM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4YPDY2EE4QEINGUE53GB2SNXFM/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":"2026-05-26T00:03:06Z","links":{"resolver":"https://pith.science/pith/4YPDY2EE4QEINGUE53GB2SNXFM","bundle":"https://pith.science/pith/4YPDY2EE4QEINGUE53GB2SNXFM/bundle.json","state":"https://pith.science/pith/4YPDY2EE4QEINGUE53GB2SNXFM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4YPDY2EE4QEINGUE53GB2SNXFM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:4YPDY2EE4QEINGUE53GB2SNXFM","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":"ae4d2d097b5a1817a1868d56847feb59c848d1373ee1295f0b41ae2f89c44381","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2010-09-17T20:06:26Z","title_canon_sha256":"c8ae6839e39f3f24c96d93de93effdefa88e896fd1d27330629243966075904c"},"schema_version":"1.0","source":{"id":"1009.3501","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1009.3501","created_at":"2026-05-18T04:32:45Z"},{"alias_kind":"arxiv_version","alias_value":"1009.3501v1","created_at":"2026-05-18T04:32:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1009.3501","created_at":"2026-05-18T04:32:45Z"},{"alias_kind":"pith_short_12","alias_value":"4YPDY2EE4QEI","created_at":"2026-05-18T12:26:04Z"},{"alias_kind":"pith_short_16","alias_value":"4YPDY2EE4QEINGUE","created_at":"2026-05-18T12:26:04Z"},{"alias_kind":"pith_short_8","alias_value":"4YPDY2EE","created_at":"2026-05-18T12:26:04Z"}],"graph_snapshots":[{"event_id":"sha256:199101301e182f19bf7855adac4fadcec2fb89e8b19515ed5162906bf38013c3","target":"graph","created_at":"2026-05-18T04:32:45Z","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":"Ultra-light scalar fields, with masses of between m=10^{-33} eV and m=10^{-22} eV, can affect the growth of structure in the Universe. We identify the different regimes in the evolution of ultra-light scalar fields, how they affect the expansion rate of the universe and how they affect the growth rate of cosmological perturbations. We find a number of interesting effects, discuss how they might arise in realistic scenarios of the early universe and comment on how they might be observed.","authors_text":"David J. E. Marsh, Pedro G. Ferreira","cross_cats":["astro-ph.CO"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2010-09-17T20:06:26Z","title":"Ultra-Light Scalar Fields and the Growth of Structure in the Universe"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1009.3501","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":"sha256:589ab24e3c4f85537480214b453fc0601d95257950bf9e3e116c0901ee64ec2b","target":"record","created_at":"2026-05-18T04:32:45Z","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":"ae4d2d097b5a1817a1868d56847feb59c848d1373ee1295f0b41ae2f89c44381","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2010-09-17T20:06:26Z","title_canon_sha256":"c8ae6839e39f3f24c96d93de93effdefa88e896fd1d27330629243966075904c"},"schema_version":"1.0","source":{"id":"1009.3501","kind":"arxiv","version":1}},"canonical_sha256":"e61e3c6884e408869a84eecc1d49b72b005b595cdbeb4416ac0eae4747f22b1e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e61e3c6884e408869a84eecc1d49b72b005b595cdbeb4416ac0eae4747f22b1e","first_computed_at":"2026-05-18T04:32:45.588834Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:32:45.588834Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Bxl/wxOwpExuvRIrGDXi/B2rUZthb21HUjgvZVQpAxa3YlpfRbtiT5NgH7Gih8OCgmAT8kbpo7cfrHNR7pA0BA==","signature_status":"signed_v1","signed_at":"2026-05-18T04:32:45.589457Z","signed_message":"canonical_sha256_bytes"},"source_id":"1009.3501","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:589ab24e3c4f85537480214b453fc0601d95257950bf9e3e116c0901ee64ec2b","sha256:199101301e182f19bf7855adac4fadcec2fb89e8b19515ed5162906bf38013c3"],"state_sha256":"794d36a05e9d8dc333297436269e8ae28c32dc330f9d61c7eb9ff5db6b02581c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qs8eR5wZ0XMm2R+vIoIybfD9gspr/F99VFVgYWAAfEJUf/O8qYWMiCfpGYt6rOA7Zg/OHlQEcuejEhNC9hDOCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T00:03:06.153579Z","bundle_sha256":"25d519c547b6ddcbb0626d9eb6585f156e8d497ce5f9975db46c8d4ec7b6f5b3"}}