{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:OG4W4BVXVNVBD3A2HHCYA6RKEY","short_pith_number":"pith:OG4W4BVX","canonical_record":{"source":{"id":"1402.0664","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2014-02-04T09:08:07Z","cross_cats_sorted":["astro-ph.IM"],"title_canon_sha256":"f162ebaa029633c49a6639e16b56a7d7e8ec5d8ffaf2540f0926445187405be3","abstract_canon_sha256":"6c6819f73fd43a812a5e0646437cf70a0499dfe880c0bb7d466cab26be61e75e"},"schema_version":"1.0"},"canonical_sha256":"71b96e06b7ab6a11ec1a39c5807a2a26045e93e9fd70bb863e1cb45d3f5fc7a1","source":{"kind":"arxiv","id":"1402.0664","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1402.0664","created_at":"2026-05-18T01:44:48Z"},{"alias_kind":"arxiv_version","alias_value":"1402.0664v1","created_at":"2026-05-18T01:44:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1402.0664","created_at":"2026-05-18T01:44:48Z"},{"alias_kind":"pith_short_12","alias_value":"OG4W4BVXVNVB","created_at":"2026-05-18T12:28:41Z"},{"alias_kind":"pith_short_16","alias_value":"OG4W4BVXVNVBD3A2","created_at":"2026-05-18T12:28:41Z"},{"alias_kind":"pith_short_8","alias_value":"OG4W4BVX","created_at":"2026-05-18T12:28:41Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:OG4W4BVXVNVBD3A2HHCYA6RKEY","target":"record","payload":{"canonical_record":{"source":{"id":"1402.0664","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2014-02-04T09:08:07Z","cross_cats_sorted":["astro-ph.IM"],"title_canon_sha256":"f162ebaa029633c49a6639e16b56a7d7e8ec5d8ffaf2540f0926445187405be3","abstract_canon_sha256":"6c6819f73fd43a812a5e0646437cf70a0499dfe880c0bb7d466cab26be61e75e"},"schema_version":"1.0"},"canonical_sha256":"71b96e06b7ab6a11ec1a39c5807a2a26045e93e9fd70bb863e1cb45d3f5fc7a1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:44:48.133404Z","signature_b64":"G4CXlNZqSSc2clD3OykTBdEsblWtHFoz2KTHNM5/v7vGWBOXK6V28QXcGAzMToQ+ZsgISmiI95JAgXjkc4BLDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"71b96e06b7ab6a11ec1a39c5807a2a26045e93e9fd70bb863e1cb45d3f5fc7a1","last_reissued_at":"2026-05-18T01:44:48.132839Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:44:48.132839Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1402.0664","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":"2026-05-18T01:44:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VuEYbSkXBH9XYeOC5G9jTgCb9REtyxNJYf5Q5i4w6bTGSRGKL+I5+aDAa9/OyA6PXQZWMAym9p/a3sN27YJyCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T13:07:18.418750Z"},"content_sha256":"5a3bb652cca687fbe0ef408ca3dd5058ead57fef270402364fa137744cb6e97d","schema_version":"1.0","event_id":"sha256:5a3bb652cca687fbe0ef408ca3dd5058ead57fef270402364fa137744cb6e97d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:OG4W4BVXVNVBD3A2HHCYA6RKEY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Short-duration Radio Bursts with Apparent Extragalactic Dispersion","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.IM"],"primary_cat":"astro-ph.HE","authors_text":"Arnold O. Benz, Christian Monstein, Pascal Saint-Hilaire","submitted_at":"2014-02-04T09:08:07Z","abstract_excerpt":"We present the results of the longest yet undertaken search for apparently extragalactic radio bursts at the Bleien Radio Observatory covering 21000 hours (898 days). The data were searched for events of less than 50 ms FWHM duration showing a $\\nu^{-2}$ drift in the spectrogram characteristic of the delay of radio waves in plasma.\n  We have found five cases suggesting dispersion measures between 350 and 400 cm$^{-3}$ pc while searching in the range of 50 -- 2000 cm$^{-3}$ pc. Four of the five events occurred between 10.27 and 11.24 a.m. local civil time. The only exception occurred at night w"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1402.0664","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":"2026-05-18T01:44:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ilJ07TjvuNKpfEi6+Q+DULMBSNkd6ErSVtwgTKZ+txd/jnNj6YyBZFwSzGP2nG/9JvJmwDnRTnvXmbNm07gZAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T13:07:18.419090Z"},"content_sha256":"34ac22d7dadd5210658fbdb23da0b88edcf0562d4297d9981b39c32874763aca","schema_version":"1.0","event_id":"sha256:34ac22d7dadd5210658fbdb23da0b88edcf0562d4297d9981b39c32874763aca"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/OG4W4BVXVNVBD3A2HHCYA6RKEY/bundle.json","state_url":"https://pith.science/pith/OG4W4BVXVNVBD3A2HHCYA6RKEY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/OG4W4BVXVNVBD3A2HHCYA6RKEY/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":"2026-06-02T13:07:18Z","links":{"resolver":"https://pith.science/pith/OG4W4BVXVNVBD3A2HHCYA6RKEY","bundle":"https://pith.science/pith/OG4W4BVXVNVBD3A2HHCYA6RKEY/bundle.json","state":"https://pith.science/pith/OG4W4BVXVNVBD3A2HHCYA6RKEY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/OG4W4BVXVNVBD3A2HHCYA6RKEY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:OG4W4BVXVNVBD3A2HHCYA6RKEY","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":"6c6819f73fd43a812a5e0646437cf70a0499dfe880c0bb7d466cab26be61e75e","cross_cats_sorted":["astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2014-02-04T09:08:07Z","title_canon_sha256":"f162ebaa029633c49a6639e16b56a7d7e8ec5d8ffaf2540f0926445187405be3"},"schema_version":"1.0","source":{"id":"1402.0664","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1402.0664","created_at":"2026-05-18T01:44:48Z"},{"alias_kind":"arxiv_version","alias_value":"1402.0664v1","created_at":"2026-05-18T01:44:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1402.0664","created_at":"2026-05-18T01:44:48Z"},{"alias_kind":"pith_short_12","alias_value":"OG4W4BVXVNVB","created_at":"2026-05-18T12:28:41Z"},{"alias_kind":"pith_short_16","alias_value":"OG4W4BVXVNVBD3A2","created_at":"2026-05-18T12:28:41Z"},{"alias_kind":"pith_short_8","alias_value":"OG4W4BVX","created_at":"2026-05-18T12:28:41Z"}],"graph_snapshots":[{"event_id":"sha256:34ac22d7dadd5210658fbdb23da0b88edcf0562d4297d9981b39c32874763aca","target":"graph","created_at":"2026-05-18T01:44:48Z","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":"We present the results of the longest yet undertaken search for apparently extragalactic radio bursts at the Bleien Radio Observatory covering 21000 hours (898 days). The data were searched for events of less than 50 ms FWHM duration showing a $\\nu^{-2}$ drift in the spectrogram characteristic of the delay of radio waves in plasma.\n  We have found five cases suggesting dispersion measures between 350 and 400 cm$^{-3}$ pc while searching in the range of 50 -- 2000 cm$^{-3}$ pc. Four of the five events occurred between 10.27 and 11.24 a.m. local civil time. The only exception occurred at night w","authors_text":"Arnold O. Benz, Christian Monstein, Pascal Saint-Hilaire","cross_cats":["astro-ph.IM"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2014-02-04T09:08:07Z","title":"Short-duration Radio Bursts with Apparent Extragalactic Dispersion"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1402.0664","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":"sha256:5a3bb652cca687fbe0ef408ca3dd5058ead57fef270402364fa137744cb6e97d","target":"record","created_at":"2026-05-18T01:44:48Z","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":"6c6819f73fd43a812a5e0646437cf70a0499dfe880c0bb7d466cab26be61e75e","cross_cats_sorted":["astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2014-02-04T09:08:07Z","title_canon_sha256":"f162ebaa029633c49a6639e16b56a7d7e8ec5d8ffaf2540f0926445187405be3"},"schema_version":"1.0","source":{"id":"1402.0664","kind":"arxiv","version":1}},"canonical_sha256":"71b96e06b7ab6a11ec1a39c5807a2a26045e93e9fd70bb863e1cb45d3f5fc7a1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"71b96e06b7ab6a11ec1a39c5807a2a26045e93e9fd70bb863e1cb45d3f5fc7a1","first_computed_at":"2026-05-18T01:44:48.132839Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:44:48.132839Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"G4CXlNZqSSc2clD3OykTBdEsblWtHFoz2KTHNM5/v7vGWBOXK6V28QXcGAzMToQ+ZsgISmiI95JAgXjkc4BLDw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:44:48.133404Z","signed_message":"canonical_sha256_bytes"},"source_id":"1402.0664","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5a3bb652cca687fbe0ef408ca3dd5058ead57fef270402364fa137744cb6e97d","sha256:34ac22d7dadd5210658fbdb23da0b88edcf0562d4297d9981b39c32874763aca"],"state_sha256":"c3a68fdec458be2ce3884a5ed3ffa0814887d9b26ae8f39ea3494747b0567531"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gz135oMgsdXBvTKeWUbnRy4PTmBh/emarqyJUkfEwJpO1av2Qb55svkcK6vAfEN6S4BOZmUtlpp6zXzyxM5FCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T13:07:18.421029Z","bundle_sha256":"8b07e6755431b9e9439cf58aaa8f4c6d1947141686bf4496b6e3971354f3e941"}}