{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:XHFTVMRN5JSGZGN7XSWUMAEVD3","short_pith_number":"pith:XHFTVMRN","canonical_record":{"source":{"id":"1609.01605","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2016-09-06T15:25:44Z","cross_cats_sorted":[],"title_canon_sha256":"57a1bda5c5a3045f2fe93c22d5de5da5f120c9f58e4a05cb7142d7249b373a66","abstract_canon_sha256":"e4b983a8dcc2effd53e070e759e464654ac687c16ceb8692fc73a52fc2fa64c6"},"schema_version":"1.0"},"canonical_sha256":"b9cb3ab22dea646c99bfbcad4600951ecd3e35a87e11126fb757207d10771e43","source":{"kind":"arxiv","id":"1609.01605","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1609.01605","created_at":"2026-05-18T00:52:58Z"},{"alias_kind":"arxiv_version","alias_value":"1609.01605v2","created_at":"2026-05-18T00:52:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1609.01605","created_at":"2026-05-18T00:52:58Z"},{"alias_kind":"pith_short_12","alias_value":"XHFTVMRN5JSG","created_at":"2026-05-18T12:30:51Z"},{"alias_kind":"pith_short_16","alias_value":"XHFTVMRN5JSGZGN7","created_at":"2026-05-18T12:30:51Z"},{"alias_kind":"pith_short_8","alias_value":"XHFTVMRN","created_at":"2026-05-18T12:30:51Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:XHFTVMRN5JSGZGN7XSWUMAEVD3","target":"record","payload":{"canonical_record":{"source":{"id":"1609.01605","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2016-09-06T15:25:44Z","cross_cats_sorted":[],"title_canon_sha256":"57a1bda5c5a3045f2fe93c22d5de5da5f120c9f58e4a05cb7142d7249b373a66","abstract_canon_sha256":"e4b983a8dcc2effd53e070e759e464654ac687c16ceb8692fc73a52fc2fa64c6"},"schema_version":"1.0"},"canonical_sha256":"b9cb3ab22dea646c99bfbcad4600951ecd3e35a87e11126fb757207d10771e43","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:52:58.581358Z","signature_b64":"Dht3Up65fC8YPr4sE0X/f1LZPrO/+VZGEmAyWm6u/WRCGmcFARNnowFeKixAqJeqXhasdrSsKYY2tSjLlYzABg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b9cb3ab22dea646c99bfbcad4600951ecd3e35a87e11126fb757207d10771e43","last_reissued_at":"2026-05-18T00:52:58.580955Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:52:58.580955Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1609.01605","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":"2026-05-18T00:52:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"opwRRM4CFS2jTtfXL4jQJLPt/0WLdKpqfRPrbnrAEmiYBLp9XgEmMwYp528TPTEVGKLkGJPimOeBg60xVtKPBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T00:45:38.182827Z"},"content_sha256":"1e38380d59e8a24c50115bccdceb98b05c91c5868dc746677d9bc9cce76744e9","schema_version":"1.0","event_id":"sha256:1e38380d59e8a24c50115bccdceb98b05c91c5868dc746677d9bc9cce76744e9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:XHFTVMRN5JSGZGN7XSWUMAEVD3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Protophobic Light Vector Boson as a Mediator to the Dark Sector","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Teppei Kitahara, Yasuhiro Yamamoto","submitted_at":"2016-09-06T15:25:44Z","abstract_excerpt":"The observation of a protophobic 16.7 MeV vector boson has been reported by a $^8$Be nuclear transition experiment. Such a new particle could mediate between the Standard Model and a dark sector, which includes the dark matter. In this paper, we show some simple models of the dark matter which satisfy the thermal relic abundance under the current experimental bounds from the direct and the indirect detections. In a model, it is found that an appropriate self-scattering cross section to solve the small scale structure puzzles can be achieved."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1609.01605","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":""},"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":"2026-05-18T00:52:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DgvR/ONY0t69XYjnpO5KhvGFsMX+DHH0fRJUzNkL2JB9zqL8VqZnXmpRhS+13KPQqvNq9trne2EqWqApOzScDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T00:45:38.183457Z"},"content_sha256":"fe39a06a728795ea137582b61719577c01bb4e0347db5d59e1fde9748a29a3fa","schema_version":"1.0","event_id":"sha256:fe39a06a728795ea137582b61719577c01bb4e0347db5d59e1fde9748a29a3fa"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XHFTVMRN5JSGZGN7XSWUMAEVD3/bundle.json","state_url":"https://pith.science/pith/XHFTVMRN5JSGZGN7XSWUMAEVD3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XHFTVMRN5JSGZGN7XSWUMAEVD3/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":"2026-08-10T00:45:38Z","links":{"resolver":"https://pith.science/pith/XHFTVMRN5JSGZGN7XSWUMAEVD3","bundle":"https://pith.science/pith/XHFTVMRN5JSGZGN7XSWUMAEVD3/bundle.json","state":"https://pith.science/pith/XHFTVMRN5JSGZGN7XSWUMAEVD3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XHFTVMRN5JSGZGN7XSWUMAEVD3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:XHFTVMRN5JSGZGN7XSWUMAEVD3","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":"e4b983a8dcc2effd53e070e759e464654ac687c16ceb8692fc73a52fc2fa64c6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2016-09-06T15:25:44Z","title_canon_sha256":"57a1bda5c5a3045f2fe93c22d5de5da5f120c9f58e4a05cb7142d7249b373a66"},"schema_version":"1.0","source":{"id":"1609.01605","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1609.01605","created_at":"2026-05-18T00:52:58Z"},{"alias_kind":"arxiv_version","alias_value":"1609.01605v2","created_at":"2026-05-18T00:52:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1609.01605","created_at":"2026-05-18T00:52:58Z"},{"alias_kind":"pith_short_12","alias_value":"XHFTVMRN5JSG","created_at":"2026-05-18T12:30:51Z"},{"alias_kind":"pith_short_16","alias_value":"XHFTVMRN5JSGZGN7","created_at":"2026-05-18T12:30:51Z"},{"alias_kind":"pith_short_8","alias_value":"XHFTVMRN","created_at":"2026-05-18T12:30:51Z"}],"graph_snapshots":[{"event_id":"sha256:fe39a06a728795ea137582b61719577c01bb4e0347db5d59e1fde9748a29a3fa","target":"graph","created_at":"2026-05-18T00:52:58Z","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 observation of a protophobic 16.7 MeV vector boson has been reported by a $^8$Be nuclear transition experiment. Such a new particle could mediate between the Standard Model and a dark sector, which includes the dark matter. In this paper, we show some simple models of the dark matter which satisfy the thermal relic abundance under the current experimental bounds from the direct and the indirect detections. In a model, it is found that an appropriate self-scattering cross section to solve the small scale structure puzzles can be achieved.","authors_text":"Teppei Kitahara, Yasuhiro Yamamoto","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2016-09-06T15:25:44Z","title":"Protophobic Light Vector Boson as a Mediator to the Dark Sector"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1609.01605","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":"sha256:1e38380d59e8a24c50115bccdceb98b05c91c5868dc746677d9bc9cce76744e9","target":"record","created_at":"2026-05-18T00:52:58Z","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":"e4b983a8dcc2effd53e070e759e464654ac687c16ceb8692fc73a52fc2fa64c6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2016-09-06T15:25:44Z","title_canon_sha256":"57a1bda5c5a3045f2fe93c22d5de5da5f120c9f58e4a05cb7142d7249b373a66"},"schema_version":"1.0","source":{"id":"1609.01605","kind":"arxiv","version":2}},"canonical_sha256":"b9cb3ab22dea646c99bfbcad4600951ecd3e35a87e11126fb757207d10771e43","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b9cb3ab22dea646c99bfbcad4600951ecd3e35a87e11126fb757207d10771e43","first_computed_at":"2026-05-18T00:52:58.580955Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:52:58.580955Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Dht3Up65fC8YPr4sE0X/f1LZPrO/+VZGEmAyWm6u/WRCGmcFARNnowFeKixAqJeqXhasdrSsKYY2tSjLlYzABg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:52:58.581358Z","signed_message":"canonical_sha256_bytes"},"source_id":"1609.01605","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1e38380d59e8a24c50115bccdceb98b05c91c5868dc746677d9bc9cce76744e9","sha256:fe39a06a728795ea137582b61719577c01bb4e0347db5d59e1fde9748a29a3fa"],"state_sha256":"def7ee9c651a51c9eef9f3af8aaea32f35a925af85fa4262081f84e0b5c89f87"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZZ78dQ414RcOnmFF4wjGt4fSLFeolmdR42W8dX2eWQRmzUlFvFx5JubcWGyXu+c9rvVsma2IWqMQw9Ej2HPRCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-10T00:45:38.189384Z","bundle_sha256":"2d30068e02b96ef882612ebea2bf77c19993fc7c72ca99fa22bb86ec827097f4"}}