{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:TDWNQKUHPA4CATOCARBLIVQC4U","short_pith_number":"pith:TDWNQKUH","canonical_record":{"source":{"id":"1801.02807","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2018-01-09T06:08:30Z","cross_cats_sorted":["astro-ph.CO","astro-ph.EP"],"title_canon_sha256":"5687d1d9bfd08dd219cc7d6b271a853882153876232875a422c770cdb7f9ebb3","abstract_canon_sha256":"d3128600216178ced15cfd46b3902cb14c276d144ce83bea423d933682e07d09"},"schema_version":"1.0"},"canonical_sha256":"98ecd82a877838204dc20442b45602e520ca2bca76833457eb7a0087f3b33925","source":{"kind":"arxiv","id":"1801.02807","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1801.02807","created_at":"2026-05-17T23:58:05Z"},{"alias_kind":"arxiv_version","alias_value":"1801.02807v1","created_at":"2026-05-17T23:58:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1801.02807","created_at":"2026-05-17T23:58:05Z"},{"alias_kind":"pith_short_12","alias_value":"TDWNQKUHPA4C","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_16","alias_value":"TDWNQKUHPA4CATOC","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_8","alias_value":"TDWNQKUH","created_at":"2026-05-18T12:32:53Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:TDWNQKUHPA4CATOCARBLIVQC4U","target":"record","payload":{"canonical_record":{"source":{"id":"1801.02807","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2018-01-09T06:08:30Z","cross_cats_sorted":["astro-ph.CO","astro-ph.EP"],"title_canon_sha256":"5687d1d9bfd08dd219cc7d6b271a853882153876232875a422c770cdb7f9ebb3","abstract_canon_sha256":"d3128600216178ced15cfd46b3902cb14c276d144ce83bea423d933682e07d09"},"schema_version":"1.0"},"canonical_sha256":"98ecd82a877838204dc20442b45602e520ca2bca76833457eb7a0087f3b33925","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:58:05.228097Z","signature_b64":"beriBqlwdpYLwxRoaJZsCK8NCZRDuatYfPgt7ghMl0ooqS3X6WduUGxiAKD1AEkWbb/Z+HTBqpvtnT7dRE96Cg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"98ecd82a877838204dc20442b45602e520ca2bca76833457eb7a0087f3b33925","last_reissued_at":"2026-05-17T23:58:05.227707Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:58:05.227707Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1801.02807","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":"2026-05-17T23:58:05Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IURPFjO8GoOZqqCLrGA717VdJz1+8JRcHk/BTSxLr2nA+7IliF9O5J4anV5aV/UhB6Mr7T5+PRlFTb/Z/nnkDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-28T19:54:54.798670Z"},"content_sha256":"7f1e85bc8e9e1edd428db37b3b09f23420608604522db88d2e73159c4902284a","schema_version":"1.0","event_id":"sha256:7f1e85bc8e9e1edd428db37b3b09f23420608604522db88d2e73159c4902284a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:TDWNQKUHPA4CATOCARBLIVQC4U","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Direct Detection of Ultralight Dark Matter via Astronomical Ephemeris","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO","astro-ph.EP"],"primary_cat":"hep-ph","authors_text":"Hajime Fukuda, Shigeki Matsumoto, Tsutomu T. Yanagida","submitted_at":"2018-01-09T06:08:30Z","abstract_excerpt":"A novel idea of the direct detection to search for a ultralight dark matter based on the interaction between the dark matter and a nucleon is proposed. Solar system bodies feel the dark matter wind and it acts as a resistant force opposing their motions. The astronomical ephemeris of solar system bodies is so precise that it has a strong capability to detect a dark matter whose mass is much lighter than O(1) eV. We have estimated the resistant force based on the calculation of the elastic scattering cross section between the dark matter and the bodies beyond the Born approximation, and show th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1801.02807","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":"2026-05-17T23:58:05Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dZg6GZ/a2rmevp/aXpkeSzUYm9JxhPSNU53VlHseuxDs44JP6oSSroKYewzkBgRmxwcWcGyE+k+yp6ZNz+j/BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-28T19:54:54.799017Z"},"content_sha256":"eaf82719e5e4199f75cd2e6ba3f2786df927f5d61bb99c1ce6b8a6906fc6b643","schema_version":"1.0","event_id":"sha256:eaf82719e5e4199f75cd2e6ba3f2786df927f5d61bb99c1ce6b8a6906fc6b643"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TDWNQKUHPA4CATOCARBLIVQC4U/bundle.json","state_url":"https://pith.science/pith/TDWNQKUHPA4CATOCARBLIVQC4U/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TDWNQKUHPA4CATOCARBLIVQC4U/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":"2026-06-28T19:54:54Z","links":{"resolver":"https://pith.science/pith/TDWNQKUHPA4CATOCARBLIVQC4U","bundle":"https://pith.science/pith/TDWNQKUHPA4CATOCARBLIVQC4U/bundle.json","state":"https://pith.science/pith/TDWNQKUHPA4CATOCARBLIVQC4U/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TDWNQKUHPA4CATOCARBLIVQC4U/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:TDWNQKUHPA4CATOCARBLIVQC4U","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":"d3128600216178ced15cfd46b3902cb14c276d144ce83bea423d933682e07d09","cross_cats_sorted":["astro-ph.CO","astro-ph.EP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2018-01-09T06:08:30Z","title_canon_sha256":"5687d1d9bfd08dd219cc7d6b271a853882153876232875a422c770cdb7f9ebb3"},"schema_version":"1.0","source":{"id":"1801.02807","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1801.02807","created_at":"2026-05-17T23:58:05Z"},{"alias_kind":"arxiv_version","alias_value":"1801.02807v1","created_at":"2026-05-17T23:58:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1801.02807","created_at":"2026-05-17T23:58:05Z"},{"alias_kind":"pith_short_12","alias_value":"TDWNQKUHPA4C","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_16","alias_value":"TDWNQKUHPA4CATOC","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_8","alias_value":"TDWNQKUH","created_at":"2026-05-18T12:32:53Z"}],"graph_snapshots":[{"event_id":"sha256:eaf82719e5e4199f75cd2e6ba3f2786df927f5d61bb99c1ce6b8a6906fc6b643","target":"graph","created_at":"2026-05-17T23:58:05Z","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":"A novel idea of the direct detection to search for a ultralight dark matter based on the interaction between the dark matter and a nucleon is proposed. Solar system bodies feel the dark matter wind and it acts as a resistant force opposing their motions. The astronomical ephemeris of solar system bodies is so precise that it has a strong capability to detect a dark matter whose mass is much lighter than O(1) eV. We have estimated the resistant force based on the calculation of the elastic scattering cross section between the dark matter and the bodies beyond the Born approximation, and show th","authors_text":"Hajime Fukuda, Shigeki Matsumoto, Tsutomu T. Yanagida","cross_cats":["astro-ph.CO","astro-ph.EP"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2018-01-09T06:08:30Z","title":"Direct Detection of Ultralight Dark Matter via Astronomical Ephemeris"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1801.02807","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":"sha256:7f1e85bc8e9e1edd428db37b3b09f23420608604522db88d2e73159c4902284a","target":"record","created_at":"2026-05-17T23:58:05Z","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":"d3128600216178ced15cfd46b3902cb14c276d144ce83bea423d933682e07d09","cross_cats_sorted":["astro-ph.CO","astro-ph.EP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2018-01-09T06:08:30Z","title_canon_sha256":"5687d1d9bfd08dd219cc7d6b271a853882153876232875a422c770cdb7f9ebb3"},"schema_version":"1.0","source":{"id":"1801.02807","kind":"arxiv","version":1}},"canonical_sha256":"98ecd82a877838204dc20442b45602e520ca2bca76833457eb7a0087f3b33925","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"98ecd82a877838204dc20442b45602e520ca2bca76833457eb7a0087f3b33925","first_computed_at":"2026-05-17T23:58:05.227707Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:58:05.227707Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"beriBqlwdpYLwxRoaJZsCK8NCZRDuatYfPgt7ghMl0ooqS3X6WduUGxiAKD1AEkWbb/Z+HTBqpvtnT7dRE96Cg==","signature_status":"signed_v1","signed_at":"2026-05-17T23:58:05.228097Z","signed_message":"canonical_sha256_bytes"},"source_id":"1801.02807","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7f1e85bc8e9e1edd428db37b3b09f23420608604522db88d2e73159c4902284a","sha256:eaf82719e5e4199f75cd2e6ba3f2786df927f5d61bb99c1ce6b8a6906fc6b643"],"state_sha256":"0842dcb6566d2be34b8f76ef727870ca982d257fa6ce16aad208e2c12753c03f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NlFMuMIHEZeVyxc+99/8ull+i+artaYNoN4s+dNKO7OG1H/DFQUnqoJyIhMfawxFvJSo3lbbEf8eVEIosMhpBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-28T19:54:54.800934Z","bundle_sha256":"9a0f1a1302ab412330ba4972a05ec4f8d3fb2d803e38bf8f91527b55edc8851b"}}