{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:IKN7KBLNMX6HX6A5H5NIBQA3TD","short_pith_number":"pith:IKN7KBLN","canonical_record":{"source":{"id":"2312.14104","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2023-12-21T18:28:42Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"f3e91067af073c51cc7df698590075f78db59c60477fe26605ece6e64d42de41","abstract_canon_sha256":"5589decfe1b972e7bbde4efb0a0517414bce89674a5ab952464fc6e9bc8d101e"},"schema_version":"1.0"},"canonical_sha256":"429bf5056d65fc7bf81d3f5a80c01b98ea520c6959e9b1d2ed66558509951ad6","source":{"kind":"arxiv","id":"2312.14104","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2312.14104","created_at":"2026-07-05T11:34:40Z"},{"alias_kind":"arxiv_version","alias_value":"2312.14104v3","created_at":"2026-07-05T11:34:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2312.14104","created_at":"2026-07-05T11:34:40Z"},{"alias_kind":"pith_short_12","alias_value":"IKN7KBLNMX6H","created_at":"2026-07-05T11:34:40Z"},{"alias_kind":"pith_short_16","alias_value":"IKN7KBLNMX6HX6A5","created_at":"2026-07-05T11:34:40Z"},{"alias_kind":"pith_short_8","alias_value":"IKN7KBLN","created_at":"2026-07-05T11:34:40Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:IKN7KBLNMX6HX6A5H5NIBQA3TD","target":"record","payload":{"canonical_record":{"source":{"id":"2312.14104","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2023-12-21T18:28:42Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"f3e91067af073c51cc7df698590075f78db59c60477fe26605ece6e64d42de41","abstract_canon_sha256":"5589decfe1b972e7bbde4efb0a0517414bce89674a5ab952464fc6e9bc8d101e"},"schema_version":"1.0"},"canonical_sha256":"429bf5056d65fc7bf81d3f5a80c01b98ea520c6959e9b1d2ed66558509951ad6","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:34:40.844686Z","signature_b64":"znF2kmSeon6PfBwitmkbDmqswVQUp1tGxbfK89gprIB79oBicah8kdf4eTLQZLVWvGRxUM15UyxUsafZjiSEAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"429bf5056d65fc7bf81d3f5a80c01b98ea520c6959e9b1d2ed66558509951ad6","last_reissued_at":"2026-07-05T11:34:40.844155Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:34:40.844155Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2312.14104","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":"2026-07-05T11:34:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MRWzkSdRyl3yPCc7P1yk3usNX29i6p6D9TOMAc2BM7/JqhAV8s4DCH/wu7D0MS0VGDn1uPycWAewaTfQkoaWDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-18T23:28:42.031990Z"},"content_sha256":"39276c604e9195d212be55d84a290a69a4ee146fd2cb163e6d101b956d31e4d8","schema_version":"1.0","event_id":"sha256:39276c604e9195d212be55d84a290a69a4ee146fd2cb163e6d101b956d31e4d8"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:IKN7KBLNMX6HX6A5H5NIBQA3TD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Axionic defects in the CMB: birefringence and gravitational waves","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"hep-ph","authors_text":"Ippei Obata, Oriol Pujolas, Ricardo Z. Ferreira, Silvia Gasparotto, Takashi Hiramatsu","submitted_at":"2023-12-21T18:28:42Z","abstract_excerpt":"The evidence for a non-vanishing isotropic cosmic birefringence in recent analyses of the CMB data provides a tantalizing hint for new physics. Domain wall (DW) networks have recently been shown to generate an isotropic birefringence signal in the ballpark of the measured value when coupled to photons. In this work, we explore the axionic defects hypothesis in more detail and extending previous results to annihilating and late-forming networks, and by pointing out other smoking-gun signatures of the network in the CMB spectrum such as the anisotropic birefringent spectrum and B-modes. We also "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2312.14104","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2312.14104/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T11:34:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3CaLrBLJadjlcAcuf4A/EquctV7uFEtjIpvTRy7FUIZK2fTxI5ERZ4Mja1LE6qWNcX4b7TyofPb3QB21QCXjAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-18T23:28:42.032785Z"},"content_sha256":"e2789c7d40f0734ff81129421c59fd53b6c3f208b8abe2f697b39d98ca8f31d6","schema_version":"1.0","event_id":"sha256:e2789c7d40f0734ff81129421c59fd53b6c3f208b8abe2f697b39d98ca8f31d6"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IKN7KBLNMX6HX6A5H5NIBQA3TD/bundle.json","state_url":"https://pith.science/pith/IKN7KBLNMX6HX6A5H5NIBQA3TD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IKN7KBLNMX6HX6A5H5NIBQA3TD/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":"2026-08-18T23:28:42Z","links":{"resolver":"https://pith.science/pith/IKN7KBLNMX6HX6A5H5NIBQA3TD","bundle":"https://pith.science/pith/IKN7KBLNMX6HX6A5H5NIBQA3TD/bundle.json","state":"https://pith.science/pith/IKN7KBLNMX6HX6A5H5NIBQA3TD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IKN7KBLNMX6HX6A5H5NIBQA3TD/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:IKN7KBLNMX6HX6A5H5NIBQA3TD","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":"5589decfe1b972e7bbde4efb0a0517414bce89674a5ab952464fc6e9bc8d101e","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2023-12-21T18:28:42Z","title_canon_sha256":"f3e91067af073c51cc7df698590075f78db59c60477fe26605ece6e64d42de41"},"schema_version":"1.0","source":{"id":"2312.14104","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2312.14104","created_at":"2026-07-05T11:34:40Z"},{"alias_kind":"arxiv_version","alias_value":"2312.14104v3","created_at":"2026-07-05T11:34:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2312.14104","created_at":"2026-07-05T11:34:40Z"},{"alias_kind":"pith_short_12","alias_value":"IKN7KBLNMX6H","created_at":"2026-07-05T11:34:40Z"},{"alias_kind":"pith_short_16","alias_value":"IKN7KBLNMX6HX6A5","created_at":"2026-07-05T11:34:40Z"},{"alias_kind":"pith_short_8","alias_value":"IKN7KBLN","created_at":"2026-07-05T11:34:40Z"}],"graph_snapshots":[{"event_id":"sha256:e2789c7d40f0734ff81129421c59fd53b6c3f208b8abe2f697b39d98ca8f31d6","target":"graph","created_at":"2026-07-05T11:34:40Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2312.14104/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The evidence for a non-vanishing isotropic cosmic birefringence in recent analyses of the CMB data provides a tantalizing hint for new physics. Domain wall (DW) networks have recently been shown to generate an isotropic birefringence signal in the ballpark of the measured value when coupled to photons. In this work, we explore the axionic defects hypothesis in more detail and extending previous results to annihilating and late-forming networks, and by pointing out other smoking-gun signatures of the network in the CMB spectrum such as the anisotropic birefringent spectrum and B-modes. We also ","authors_text":"Ippei Obata, Oriol Pujolas, Ricardo Z. Ferreira, Silvia Gasparotto, Takashi Hiramatsu","cross_cats":["astro-ph.CO"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2023-12-21T18:28:42Z","title":"Axionic defects in the CMB: birefringence and gravitational waves"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2312.14104","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":"sha256:39276c604e9195d212be55d84a290a69a4ee146fd2cb163e6d101b956d31e4d8","target":"record","created_at":"2026-07-05T11:34:40Z","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":"5589decfe1b972e7bbde4efb0a0517414bce89674a5ab952464fc6e9bc8d101e","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2023-12-21T18:28:42Z","title_canon_sha256":"f3e91067af073c51cc7df698590075f78db59c60477fe26605ece6e64d42de41"},"schema_version":"1.0","source":{"id":"2312.14104","kind":"arxiv","version":3}},"canonical_sha256":"429bf5056d65fc7bf81d3f5a80c01b98ea520c6959e9b1d2ed66558509951ad6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"429bf5056d65fc7bf81d3f5a80c01b98ea520c6959e9b1d2ed66558509951ad6","first_computed_at":"2026-07-05T11:34:40.844155Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:34:40.844155Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"znF2kmSeon6PfBwitmkbDmqswVQUp1tGxbfK89gprIB79oBicah8kdf4eTLQZLVWvGRxUM15UyxUsafZjiSEAA==","signature_status":"signed_v1","signed_at":"2026-07-05T11:34:40.844686Z","signed_message":"canonical_sha256_bytes"},"source_id":"2312.14104","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:39276c604e9195d212be55d84a290a69a4ee146fd2cb163e6d101b956d31e4d8","sha256:e2789c7d40f0734ff81129421c59fd53b6c3f208b8abe2f697b39d98ca8f31d6"],"state_sha256":"a74981fb29bebea8448ac336dacd88105b7c11f19894967b4137ffa248b0a425"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hfawcF+OthpKBJqbwFlr5sumPXfj/IaWkfcEwsz0Wm7s9jwunTU5SI2+7DDj5Eo1eliqLRY3kZpWBwR7kS3sDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-18T23:28:42.038384Z","bundle_sha256":"fadc22ce86d55f0a5e5b6ec96b68c58345c0996bbd610939a3445ec9bd6bfb36"}}