{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:JMUF2WZ7QAYKLY3TYQAGW4TE6B","short_pith_number":"pith:JMUF2WZ7","canonical_record":{"source":{"id":"1801.03466","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2018-01-10T17:28:21Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"d70f4c0ac94e48787f31bfff938824d41e0c5adc273f9c148c5b86366d577c4a","abstract_canon_sha256":"df2d9beb06c62d5aa3cfc5058b23b6bceefc5c99b6966cf0917da871aaa2ed37"},"schema_version":"1.0"},"canonical_sha256":"4b285d5b3f8030a5e373c4006b7264f06828986fe61e4286579a8a86087d399b","source":{"kind":"arxiv","id":"1801.03466","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1801.03466","created_at":"2026-05-18T00:11:39Z"},{"alias_kind":"arxiv_version","alias_value":"1801.03466v3","created_at":"2026-05-18T00:11:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1801.03466","created_at":"2026-05-18T00:11:39Z"},{"alias_kind":"pith_short_12","alias_value":"JMUF2WZ7QAYK","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_16","alias_value":"JMUF2WZ7QAYKLY3T","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_8","alias_value":"JMUF2WZ7","created_at":"2026-05-18T12:32:31Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:JMUF2WZ7QAYKLY3TYQAGW4TE6B","target":"record","payload":{"canonical_record":{"source":{"id":"1801.03466","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2018-01-10T17:28:21Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"d70f4c0ac94e48787f31bfff938824d41e0c5adc273f9c148c5b86366d577c4a","abstract_canon_sha256":"df2d9beb06c62d5aa3cfc5058b23b6bceefc5c99b6966cf0917da871aaa2ed37"},"schema_version":"1.0"},"canonical_sha256":"4b285d5b3f8030a5e373c4006b7264f06828986fe61e4286579a8a86087d399b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:11:39.008859Z","signature_b64":"RMmB2pW/0aHbs041zmu+SrwdcDtdF7hANB1yc2KM8UJuJ+cSCaecHhpgcuwp3h9u8AifopOdlNR8BWzFePjtCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4b285d5b3f8030a5e373c4006b7264f06828986fe61e4286579a8a86087d399b","last_reissued_at":"2026-05-18T00:11:39.008182Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:11:39.008182Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1801.03466","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:11:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nee7SUhPl5XslpGaeyjOWZzye0d6PqkqCnZ18U+V6iR7L04L5hXAcTVjAD+GCPjoZ4wekyerAQD/lro7FFPTAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T19:27:04.927523Z"},"content_sha256":"e1d0cb01e2d271658330fe4eca76150f291b27a0e712de1a45a51b5f799ab1ad","schema_version":"1.0","event_id":"sha256:e1d0cb01e2d271658330fe4eca76150f291b27a0e712de1a45a51b5f799ab1ad"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:JMUF2WZ7QAYKLY3TYQAGW4TE6B","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Some Remarks on Anthropic Approaches to the Strong CP Problem","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ph"],"primary_cat":"hep-th","authors_text":"Di Xu, Laurel Stephenson Haskins, Lorenzo Ubaldi, Michael Dine","submitted_at":"2018-01-10T17:28:21Z","abstract_excerpt":"The peculiar value of $\\theta$ is a challenge to the notion of an anthropic landscape. We briefly review the possibility that a suitable axion might arise from an anthropic requirement of dark matter. We then consider an alternative suggestion of Kaloper and Terning that $\\theta$ might be correlated with the cosmological constant. We note that in a landscape one expects that $\\theta$ is determined by the expectation value of one or more axions. We discuss how a discretuum of values of $\\theta$ might arise with an energy distribution dominated by QCD, and find the requirements to be quite strin"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1801.03466","kind":"arxiv","version":3},"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":"2026-05-18T00:11:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"i1NEH8nr2DpOJ3UnbnaNREjyV6NWm7dggyNhmmd5smAzGT49LSH3uz/s9ePX0iipWm6N2Ys/1DfradebCbKyDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T19:27:04.927871Z"},"content_sha256":"ab3613d4cf9b721c6c84d2a5adc868a5f7cee3c0bab2fa1d0e66d6ce876a5e2d","schema_version":"1.0","event_id":"sha256:ab3613d4cf9b721c6c84d2a5adc868a5f7cee3c0bab2fa1d0e66d6ce876a5e2d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JMUF2WZ7QAYKLY3TYQAGW4TE6B/bundle.json","state_url":"https://pith.science/pith/JMUF2WZ7QAYKLY3TYQAGW4TE6B/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JMUF2WZ7QAYKLY3TYQAGW4TE6B/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":"2026-05-30T19:27:04Z","links":{"resolver":"https://pith.science/pith/JMUF2WZ7QAYKLY3TYQAGW4TE6B","bundle":"https://pith.science/pith/JMUF2WZ7QAYKLY3TYQAGW4TE6B/bundle.json","state":"https://pith.science/pith/JMUF2WZ7QAYKLY3TYQAGW4TE6B/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JMUF2WZ7QAYKLY3TYQAGW4TE6B/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:JMUF2WZ7QAYKLY3TYQAGW4TE6B","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":"df2d9beb06c62d5aa3cfc5058b23b6bceefc5c99b6966cf0917da871aaa2ed37","cross_cats_sorted":["hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2018-01-10T17:28:21Z","title_canon_sha256":"d70f4c0ac94e48787f31bfff938824d41e0c5adc273f9c148c5b86366d577c4a"},"schema_version":"1.0","source":{"id":"1801.03466","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1801.03466","created_at":"2026-05-18T00:11:39Z"},{"alias_kind":"arxiv_version","alias_value":"1801.03466v3","created_at":"2026-05-18T00:11:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1801.03466","created_at":"2026-05-18T00:11:39Z"},{"alias_kind":"pith_short_12","alias_value":"JMUF2WZ7QAYK","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_16","alias_value":"JMUF2WZ7QAYKLY3T","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_8","alias_value":"JMUF2WZ7","created_at":"2026-05-18T12:32:31Z"}],"graph_snapshots":[{"event_id":"sha256:ab3613d4cf9b721c6c84d2a5adc868a5f7cee3c0bab2fa1d0e66d6ce876a5e2d","target":"graph","created_at":"2026-05-18T00:11:39Z","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":"The peculiar value of $\\theta$ is a challenge to the notion of an anthropic landscape. We briefly review the possibility that a suitable axion might arise from an anthropic requirement of dark matter. We then consider an alternative suggestion of Kaloper and Terning that $\\theta$ might be correlated with the cosmological constant. We note that in a landscape one expects that $\\theta$ is determined by the expectation value of one or more axions. We discuss how a discretuum of values of $\\theta$ might arise with an energy distribution dominated by QCD, and find the requirements to be quite strin","authors_text":"Di Xu, Laurel Stephenson Haskins, Lorenzo Ubaldi, Michael Dine","cross_cats":["hep-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2018-01-10T17:28:21Z","title":"Some Remarks on Anthropic Approaches to the Strong CP Problem"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1801.03466","kind":"arxiv","version":3},"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:e1d0cb01e2d271658330fe4eca76150f291b27a0e712de1a45a51b5f799ab1ad","target":"record","created_at":"2026-05-18T00:11:39Z","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":"df2d9beb06c62d5aa3cfc5058b23b6bceefc5c99b6966cf0917da871aaa2ed37","cross_cats_sorted":["hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2018-01-10T17:28:21Z","title_canon_sha256":"d70f4c0ac94e48787f31bfff938824d41e0c5adc273f9c148c5b86366d577c4a"},"schema_version":"1.0","source":{"id":"1801.03466","kind":"arxiv","version":3}},"canonical_sha256":"4b285d5b3f8030a5e373c4006b7264f06828986fe61e4286579a8a86087d399b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4b285d5b3f8030a5e373c4006b7264f06828986fe61e4286579a8a86087d399b","first_computed_at":"2026-05-18T00:11:39.008182Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:11:39.008182Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"RMmB2pW/0aHbs041zmu+SrwdcDtdF7hANB1yc2KM8UJuJ+cSCaecHhpgcuwp3h9u8AifopOdlNR8BWzFePjtCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:11:39.008859Z","signed_message":"canonical_sha256_bytes"},"source_id":"1801.03466","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e1d0cb01e2d271658330fe4eca76150f291b27a0e712de1a45a51b5f799ab1ad","sha256:ab3613d4cf9b721c6c84d2a5adc868a5f7cee3c0bab2fa1d0e66d6ce876a5e2d"],"state_sha256":"40baa080f038433c208c75aded736d8df0f06104878b6e85c08d9ce11f5fa19d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"oQN3RK0SihqOb9XFW1AufliJFibtIYPmJvuhUYjV60vEJYPJohszCKf+gos+4R3wpTVIwd8yR6WkEGfmhAKMDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T19:27:04.929911Z","bundle_sha256":"bf594953034cf6014b3ae6d424cf509d7ee62bf0e7ad6dcec56afde54b8fcc01"}}