{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:XCMPR2AYMAGBJMZUKTJSOQ3XYR","short_pith_number":"pith:XCMPR2AY","canonical_record":{"source":{"id":"2307.08793","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2023-07-17T19:23:43Z","cross_cats_sorted":["astro-ph.EP"],"title_canon_sha256":"568fdb8d2080d88b9ecfb7635fe1713a40467470943e3d12d145cefd1557645f","abstract_canon_sha256":"10140085c7f5cf465fdcdec8e5721590014b4565c0dece48db15163b14952def"},"schema_version":"1.0"},"canonical_sha256":"b898f8e818600c14b33454d3274377c478c2e298a402ba73743c6ffeffd29850","source":{"kind":"arxiv","id":"2307.08793","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2307.08793","created_at":"2026-07-05T06:31:34Z"},{"alias_kind":"arxiv_version","alias_value":"2307.08793v1","created_at":"2026-07-05T06:31:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2307.08793","created_at":"2026-07-05T06:31:34Z"},{"alias_kind":"pith_short_12","alias_value":"XCMPR2AYMAGB","created_at":"2026-07-05T06:31:34Z"},{"alias_kind":"pith_short_16","alias_value":"XCMPR2AYMAGBJMZU","created_at":"2026-07-05T06:31:34Z"},{"alias_kind":"pith_short_8","alias_value":"XCMPR2AY","created_at":"2026-07-05T06:31:34Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:XCMPR2AYMAGBJMZUKTJSOQ3XYR","target":"record","payload":{"canonical_record":{"source":{"id":"2307.08793","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2023-07-17T19:23:43Z","cross_cats_sorted":["astro-ph.EP"],"title_canon_sha256":"568fdb8d2080d88b9ecfb7635fe1713a40467470943e3d12d145cefd1557645f","abstract_canon_sha256":"10140085c7f5cf465fdcdec8e5721590014b4565c0dece48db15163b14952def"},"schema_version":"1.0"},"canonical_sha256":"b898f8e818600c14b33454d3274377c478c2e298a402ba73743c6ffeffd29850","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:31:34.499858Z","signature_b64":"+nyKaVc9SfDmLI66Kt0mutoZlXCqZxj4w72K2mVyciTyWxB/JlPlZfZv4FfkgxPDuC2Sgwauj73NfqQjxbwQCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b898f8e818600c14b33454d3274377c478c2e298a402ba73743c6ffeffd29850","last_reissued_at":"2026-07-05T06:31:34.499345Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:31:34.499345Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2307.08793","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":"2026-07-05T06:31:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vwlV+D2wBI6O88xrKvVaF4pm+qgnK7rP5wrwI9yMzrJ5hWLIQSRFzhZRKmNVEUlxAzATw9ZMM0kVdPUIZvDKCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-14T21:19:50.412562Z"},"content_sha256":"9f0f5b6ee60c1dc7954cae5a562ddafde9d829c01287a0c01862e3299a60eac9","schema_version":"1.0","event_id":"sha256:9f0f5b6ee60c1dc7954cae5a562ddafde9d829c01287a0c01862e3299a60eac9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:XCMPR2AYMAGBJMZUKTJSOQ3XYR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"On Detecting Interstellar Scintillation in Narrowband Radio SETI","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.EP"],"primary_cat":"astro-ph.IM","authors_text":"Andrew P. V. Siemion, Brian Lacki, Bryan Brzycki, Imke de Pater, James M. Cordes, Sofia Sheikh, Vishal Gajjar","submitted_at":"2023-07-17T19:23:43Z","abstract_excerpt":"To date, the search for radio technosignatures has focused on sky location as a primary discriminant between technosignature candidates and anthropogenic radio frequency interference (RFI). In this work, we investigate the possibility of searching for technosignatures by identifying the presence and nature of intensity scintillations arising from the turbulent, ionized plasma of the interstellar medium (ISM). Past works have detailed how interstellar scattering can both enhance and diminish the detectability of narrowband radio signals. We use the NE2001 Galactic free electron density model to"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2307.08793","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2307.08793/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":"2026-07-05T06:31:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WAj7wXWdyc6mCkVvRJCqEKK5uiarHfs05bnzRRw1ftlFbdqP/z4bXmMY4+B8TtlNeQkT22Hf0suDFIpTolbqCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-14T21:19:50.413066Z"},"content_sha256":"c8a66e3910991a007373dbf473bde453fc5f6be85e1de4ee309d962b4c6c237b","schema_version":"1.0","event_id":"sha256:c8a66e3910991a007373dbf473bde453fc5f6be85e1de4ee309d962b4c6c237b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XCMPR2AYMAGBJMZUKTJSOQ3XYR/bundle.json","state_url":"https://pith.science/pith/XCMPR2AYMAGBJMZUKTJSOQ3XYR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XCMPR2AYMAGBJMZUKTJSOQ3XYR/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":"2026-08-14T21:19:50Z","links":{"resolver":"https://pith.science/pith/XCMPR2AYMAGBJMZUKTJSOQ3XYR","bundle":"https://pith.science/pith/XCMPR2AYMAGBJMZUKTJSOQ3XYR/bundle.json","state":"https://pith.science/pith/XCMPR2AYMAGBJMZUKTJSOQ3XYR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XCMPR2AYMAGBJMZUKTJSOQ3XYR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:XCMPR2AYMAGBJMZUKTJSOQ3XYR","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":"10140085c7f5cf465fdcdec8e5721590014b4565c0dece48db15163b14952def","cross_cats_sorted":["astro-ph.EP"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2023-07-17T19:23:43Z","title_canon_sha256":"568fdb8d2080d88b9ecfb7635fe1713a40467470943e3d12d145cefd1557645f"},"schema_version":"1.0","source":{"id":"2307.08793","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2307.08793","created_at":"2026-07-05T06:31:34Z"},{"alias_kind":"arxiv_version","alias_value":"2307.08793v1","created_at":"2026-07-05T06:31:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2307.08793","created_at":"2026-07-05T06:31:34Z"},{"alias_kind":"pith_short_12","alias_value":"XCMPR2AYMAGB","created_at":"2026-07-05T06:31:34Z"},{"alias_kind":"pith_short_16","alias_value":"XCMPR2AYMAGBJMZU","created_at":"2026-07-05T06:31:34Z"},{"alias_kind":"pith_short_8","alias_value":"XCMPR2AY","created_at":"2026-07-05T06:31:34Z"}],"graph_snapshots":[{"event_id":"sha256:c8a66e3910991a007373dbf473bde453fc5f6be85e1de4ee309d962b4c6c237b","target":"graph","created_at":"2026-07-05T06:31:34Z","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/2307.08793/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"To date, the search for radio technosignatures has focused on sky location as a primary discriminant between technosignature candidates and anthropogenic radio frequency interference (RFI). In this work, we investigate the possibility of searching for technosignatures by identifying the presence and nature of intensity scintillations arising from the turbulent, ionized plasma of the interstellar medium (ISM). Past works have detailed how interstellar scattering can both enhance and diminish the detectability of narrowband radio signals. We use the NE2001 Galactic free electron density model to","authors_text":"Andrew P. V. Siemion, Brian Lacki, Bryan Brzycki, Imke de Pater, James M. Cordes, Sofia Sheikh, Vishal Gajjar","cross_cats":["astro-ph.EP"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2023-07-17T19:23:43Z","title":"On Detecting Interstellar Scintillation in Narrowband Radio SETI"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2307.08793","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":"sha256:9f0f5b6ee60c1dc7954cae5a562ddafde9d829c01287a0c01862e3299a60eac9","target":"record","created_at":"2026-07-05T06:31:34Z","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":"10140085c7f5cf465fdcdec8e5721590014b4565c0dece48db15163b14952def","cross_cats_sorted":["astro-ph.EP"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2023-07-17T19:23:43Z","title_canon_sha256":"568fdb8d2080d88b9ecfb7635fe1713a40467470943e3d12d145cefd1557645f"},"schema_version":"1.0","source":{"id":"2307.08793","kind":"arxiv","version":1}},"canonical_sha256":"b898f8e818600c14b33454d3274377c478c2e298a402ba73743c6ffeffd29850","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b898f8e818600c14b33454d3274377c478c2e298a402ba73743c6ffeffd29850","first_computed_at":"2026-07-05T06:31:34.499345Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:31:34.499345Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"+nyKaVc9SfDmLI66Kt0mutoZlXCqZxj4w72K2mVyciTyWxB/JlPlZfZv4FfkgxPDuC2Sgwauj73NfqQjxbwQCQ==","signature_status":"signed_v1","signed_at":"2026-07-05T06:31:34.499858Z","signed_message":"canonical_sha256_bytes"},"source_id":"2307.08793","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9f0f5b6ee60c1dc7954cae5a562ddafde9d829c01287a0c01862e3299a60eac9","sha256:c8a66e3910991a007373dbf473bde453fc5f6be85e1de4ee309d962b4c6c237b"],"state_sha256":"828034b570770c77ac22fccdf0868e31f0ba52fd3a57cf399bd292353419aa2a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vVPk0HdxOzVt7e/ztUXDLOAZONqHXVBIxZu2k2SQABpUR25PD88ZGnca+VPy4Kz25k2QL8NYUGtTc5uqaw17BQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-14T21:19:50.416518Z","bundle_sha256":"071aaf006c4f492932f32298529f2ca2f31603af6fc03f7a650e454ff072d863"}}