{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:SHOCIT2YTO4MOM5YUB2FNLVJTW","short_pith_number":"pith:SHOCIT2Y","canonical_record":{"source":{"id":"1909.05923","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-09-12T19:53:19Z","cross_cats_sorted":[],"title_canon_sha256":"9612d12ca18b3655d4434f1f90ec6182cba4a6cf0b3b6d75427f8161b9cbd64f","abstract_canon_sha256":"72db2bff0469cd1ddc58427e241ad4a083f1eec557a0a3df240e58dab0462b94"},"schema_version":"1.0"},"canonical_sha256":"91dc244f589bb8c733b8a07456aea99db08f386d2e04ba8c0795bf1681f724ef","source":{"kind":"arxiv","id":"1909.05923","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1909.05923","created_at":"2026-07-05T02:22:04Z"},{"alias_kind":"arxiv_version","alias_value":"1909.05923v2","created_at":"2026-07-05T02:22:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1909.05923","created_at":"2026-07-05T02:22:04Z"},{"alias_kind":"pith_short_12","alias_value":"SHOCIT2YTO4M","created_at":"2026-07-05T02:22:04Z"},{"alias_kind":"pith_short_16","alias_value":"SHOCIT2YTO4MOM5Y","created_at":"2026-07-05T02:22:04Z"},{"alias_kind":"pith_short_8","alias_value":"SHOCIT2Y","created_at":"2026-07-05T02:22:04Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:SHOCIT2YTO4MOM5YUB2FNLVJTW","target":"record","payload":{"canonical_record":{"source":{"id":"1909.05923","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-09-12T19:53:19Z","cross_cats_sorted":[],"title_canon_sha256":"9612d12ca18b3655d4434f1f90ec6182cba4a6cf0b3b6d75427f8161b9cbd64f","abstract_canon_sha256":"72db2bff0469cd1ddc58427e241ad4a083f1eec557a0a3df240e58dab0462b94"},"schema_version":"1.0"},"canonical_sha256":"91dc244f589bb8c733b8a07456aea99db08f386d2e04ba8c0795bf1681f724ef","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:22:04.133802Z","signature_b64":"lE9IDlh5H7AGt+ivEh8hmW4G8SPjoxfrY0EDuqRKPt56gVSK0CwXnRJ+Z84TH4Ff3is2WC5180OERj4HxOs8Cg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"91dc244f589bb8c733b8a07456aea99db08f386d2e04ba8c0795bf1681f724ef","last_reissued_at":"2026-07-05T02:22:04.133280Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:22:04.133280Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1909.05923","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":"2026-07-05T02:22:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"c7aX3Xr2GH+9e0j9zXVBdwd6ymM/IDrMHDCX3Vexvw2OzgRL6MPXZh9aGMt8fiBXk1ojqfIDxKyVbfETqT2HCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-06T16:18:31.244019Z"},"content_sha256":"e8d8bc98f87ad7c56b996912e2458362d3455ef2c7486234a6bcbe9c9f9a63de","schema_version":"1.0","event_id":"sha256:e8d8bc98f87ad7c56b996912e2458362d3455ef2c7486234a6bcbe9c9f9a63de"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:SHOCIT2YTO4MOM5YUB2FNLVJTW","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Constraints on the spectral index of polarized synchrotron emission from WMAP and Faraday-corrected S-PASS data","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"E. Gjerl{\\o}w, H. K. Eriksen, I. K. Wehus, K. J. Andersen, M. Brilenkov, M. Galloway, R. Aurlien, R. Banerji, S. K. N{\\ae}ss, T. L. Svalheim, U. Fuskeland","submitted_at":"2019-09-12T19:53:19Z","abstract_excerpt":"We constrain the spectral index of polarized synchrotron emission, $\\beta_s$, by correlating the recently released 2.3 GHz S-Band Polarization All Sky Survey (S-PASS) data with the 23 GHz 9-year Wilkinson Microwave Anisotropy Probe (WMAP) sky maps. We subdivide the S-PASS field, which covers the southern ecliptic hemisphere, into 95 $15^{\\circ}\\times15^{\\circ}$ regions and estimate the spectral index of polarized synchrotron emission within each region using a simple but robust T-T plot technique. Three different versions of the S-PASS data are considered, corresponding to: no correction for F"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1909.05923","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/1909.05923/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":"2026-07-05T02:22:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"43c1HgmDyS5TZCyD8hk+thzMqEYuk1thhiFC4K51N0pY1e4NLucKz7df4VvL+rwZt0pfs6PTvxlmKAqzpFmjCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-06T16:18:31.244395Z"},"content_sha256":"42cf79572566b0983b71ff4e7e5cfdca379a9459b7e7559c02b929f95b19373d","schema_version":"1.0","event_id":"sha256:42cf79572566b0983b71ff4e7e5cfdca379a9459b7e7559c02b929f95b19373d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/SHOCIT2YTO4MOM5YUB2FNLVJTW/bundle.json","state_url":"https://pith.science/pith/SHOCIT2YTO4MOM5YUB2FNLVJTW/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/SHOCIT2YTO4MOM5YUB2FNLVJTW/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":"2026-07-06T16:18:31Z","links":{"resolver":"https://pith.science/pith/SHOCIT2YTO4MOM5YUB2FNLVJTW","bundle":"https://pith.science/pith/SHOCIT2YTO4MOM5YUB2FNLVJTW/bundle.json","state":"https://pith.science/pith/SHOCIT2YTO4MOM5YUB2FNLVJTW/state.json","well_known_bundle":"https://pith.science/.well-known/pith/SHOCIT2YTO4MOM5YUB2FNLVJTW/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:SHOCIT2YTO4MOM5YUB2FNLVJTW","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":"72db2bff0469cd1ddc58427e241ad4a083f1eec557a0a3df240e58dab0462b94","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-09-12T19:53:19Z","title_canon_sha256":"9612d12ca18b3655d4434f1f90ec6182cba4a6cf0b3b6d75427f8161b9cbd64f"},"schema_version":"1.0","source":{"id":"1909.05923","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1909.05923","created_at":"2026-07-05T02:22:04Z"},{"alias_kind":"arxiv_version","alias_value":"1909.05923v2","created_at":"2026-07-05T02:22:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1909.05923","created_at":"2026-07-05T02:22:04Z"},{"alias_kind":"pith_short_12","alias_value":"SHOCIT2YTO4M","created_at":"2026-07-05T02:22:04Z"},{"alias_kind":"pith_short_16","alias_value":"SHOCIT2YTO4MOM5Y","created_at":"2026-07-05T02:22:04Z"},{"alias_kind":"pith_short_8","alias_value":"SHOCIT2Y","created_at":"2026-07-05T02:22:04Z"}],"graph_snapshots":[{"event_id":"sha256:42cf79572566b0983b71ff4e7e5cfdca379a9459b7e7559c02b929f95b19373d","target":"graph","created_at":"2026-07-05T02:22:04Z","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/1909.05923/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We constrain the spectral index of polarized synchrotron emission, $\\beta_s$, by correlating the recently released 2.3 GHz S-Band Polarization All Sky Survey (S-PASS) data with the 23 GHz 9-year Wilkinson Microwave Anisotropy Probe (WMAP) sky maps. We subdivide the S-PASS field, which covers the southern ecliptic hemisphere, into 95 $15^{\\circ}\\times15^{\\circ}$ regions and estimate the spectral index of polarized synchrotron emission within each region using a simple but robust T-T plot technique. Three different versions of the S-PASS data are considered, corresponding to: no correction for F","authors_text":"E. Gjerl{\\o}w, H. K. Eriksen, I. K. Wehus, K. J. Andersen, M. Brilenkov, M. Galloway, R. Aurlien, R. Banerji, S. K. N{\\ae}ss, T. L. Svalheim, U. Fuskeland","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-09-12T19:53:19Z","title":"Constraints on the spectral index of polarized synchrotron emission from WMAP and Faraday-corrected S-PASS data"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1909.05923","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:e8d8bc98f87ad7c56b996912e2458362d3455ef2c7486234a6bcbe9c9f9a63de","target":"record","created_at":"2026-07-05T02:22:04Z","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":"72db2bff0469cd1ddc58427e241ad4a083f1eec557a0a3df240e58dab0462b94","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-09-12T19:53:19Z","title_canon_sha256":"9612d12ca18b3655d4434f1f90ec6182cba4a6cf0b3b6d75427f8161b9cbd64f"},"schema_version":"1.0","source":{"id":"1909.05923","kind":"arxiv","version":2}},"canonical_sha256":"91dc244f589bb8c733b8a07456aea99db08f386d2e04ba8c0795bf1681f724ef","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"91dc244f589bb8c733b8a07456aea99db08f386d2e04ba8c0795bf1681f724ef","first_computed_at":"2026-07-05T02:22:04.133280Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:22:04.133280Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"lE9IDlh5H7AGt+ivEh8hmW4G8SPjoxfrY0EDuqRKPt56gVSK0CwXnRJ+Z84TH4Ff3is2WC5180OERj4HxOs8Cg==","signature_status":"signed_v1","signed_at":"2026-07-05T02:22:04.133802Z","signed_message":"canonical_sha256_bytes"},"source_id":"1909.05923","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e8d8bc98f87ad7c56b996912e2458362d3455ef2c7486234a6bcbe9c9f9a63de","sha256:42cf79572566b0983b71ff4e7e5cfdca379a9459b7e7559c02b929f95b19373d"],"state_sha256":"f8b748d0ea8b302b6df3e779508df27e17a4bc76e42ea07af0221d13c8914e23"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lZ2lzb6I2MHJCr4te5FPl2MDf8UrYTEDJj5MwFINJI0JInWI0Yw0mItNsrDgIrvLAraz8Uf7a6oZYOAgKN1XAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-06T16:18:31.246373Z","bundle_sha256":"980d2e4699ba0d5519207182513af91130f51988a1be9caeed58f492328b7882"}}