{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:X7XWKHRHJOSRR5VHT4HTXOUHBS","short_pith_number":"pith:X7XWKHRH","canonical_record":{"source":{"id":"2010.01560","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2020-10-04T12:13:16Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"cb56ea8522b9bd20294ef5c2654e7623d7f044364bcc36b78eb74025842122be","abstract_canon_sha256":"50bffe6c03a2279ce7860bd340b475ff35dea59432ac00f55ec12299275b0a3b"},"schema_version":"1.0"},"canonical_sha256":"bfef651e274ba518f6a79f0f3bba870c87df818906382fbda56c39940debdb5c","source":{"kind":"arxiv","id":"2010.01560","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2010.01560","created_at":"2026-07-05T02:12:06Z"},{"alias_kind":"arxiv_version","alias_value":"2010.01560v2","created_at":"2026-07-05T02:12:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2010.01560","created_at":"2026-07-05T02:12:06Z"},{"alias_kind":"pith_short_12","alias_value":"X7XWKHRHJOSR","created_at":"2026-07-05T02:12:06Z"},{"alias_kind":"pith_short_16","alias_value":"X7XWKHRHJOSRR5VH","created_at":"2026-07-05T02:12:06Z"},{"alias_kind":"pith_short_8","alias_value":"X7XWKHRH","created_at":"2026-07-05T02:12:06Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:X7XWKHRHJOSRR5VHT4HTXOUHBS","target":"record","payload":{"canonical_record":{"source":{"id":"2010.01560","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2020-10-04T12:13:16Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"cb56ea8522b9bd20294ef5c2654e7623d7f044364bcc36b78eb74025842122be","abstract_canon_sha256":"50bffe6c03a2279ce7860bd340b475ff35dea59432ac00f55ec12299275b0a3b"},"schema_version":"1.0"},"canonical_sha256":"bfef651e274ba518f6a79f0f3bba870c87df818906382fbda56c39940debdb5c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:12:06.689310Z","signature_b64":"tA8hhKQPxHh34heulbewVNXz+9/D0436ZiYGCQ28AQ7XHJTU75mc4BRqTmFsfgVwtuce+BZkn6jyB40fPgVdBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"bfef651e274ba518f6a79f0f3bba870c87df818906382fbda56c39940debdb5c","last_reissued_at":"2026-07-05T02:12:06.688853Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:12:06.688853Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2010.01560","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":"2026-07-05T02:12:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YYXq3Vhgnfm0oawKDbnMrSy5VtzABuAOnuQGoQmd/bVkW7NNIKdpVdYOlAh57OIXQfNdvPMrcfSy/TMO1nWpDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-02T23:24:00.876490Z"},"content_sha256":"9c51d7249391d35b8c265771ebe80b6594f9a3b0afd15a4b170abfcd1d424514","schema_version":"1.0","event_id":"sha256:9c51d7249391d35b8c265771ebe80b6594f9a3b0afd15a4b170abfcd1d424514"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:X7XWKHRHJOSRR5VHT4HTXOUHBS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Statistical modelling of the cosmological dispersion measure","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc"],"primary_cat":"astro-ph.CO","authors_text":"Asuka Mori, Koki Funahashi, Kunihito Ioka, Ryuichi Takahashi","submitted_at":"2020-10-04T12:13:16Z","abstract_excerpt":"We have investigated the basic statistics of the cosmological dispersion measure (DM) -- such as its mean, variance, probability distribution, angular power spectrum and correlation function -- using the state-of-the-art hydrodynamic simulations, IllustrisTNG300, for the fast radio burst (FRB) cosmology. To model the DM statistics, we first measured the free-electron abundance and the power spectrum of its spatial fluctuations. The free-electron power spectrum turns out to be consistent with the dark matter power spectrum at large scales, but it is strongly damped at small scales ($\\lesssim 1$"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2010.01560","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/2010.01560/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":"2026-07-05T02:12:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"19SgTjbPnKuIY8vs02TwWlokOHhrswb6uoeed2w/GkL0Tk0j3PZq9q/zpdUWg5GM9RujIwtxtPz4vT1AL/T/Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-02T23:24:00.876986Z"},"content_sha256":"b35d4b137bcb68812805c7abb73bd5bb75e7e619b7368ea7a10b2eb90866be2f","schema_version":"1.0","event_id":"sha256:b35d4b137bcb68812805c7abb73bd5bb75e7e619b7368ea7a10b2eb90866be2f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/X7XWKHRHJOSRR5VHT4HTXOUHBS/bundle.json","state_url":"https://pith.science/pith/X7XWKHRHJOSRR5VHT4HTXOUHBS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/X7XWKHRHJOSRR5VHT4HTXOUHBS/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":"2026-08-02T23:24:00Z","links":{"resolver":"https://pith.science/pith/X7XWKHRHJOSRR5VHT4HTXOUHBS","bundle":"https://pith.science/pith/X7XWKHRHJOSRR5VHT4HTXOUHBS/bundle.json","state":"https://pith.science/pith/X7XWKHRHJOSRR5VHT4HTXOUHBS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/X7XWKHRHJOSRR5VHT4HTXOUHBS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:X7XWKHRHJOSRR5VHT4HTXOUHBS","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":"50bffe6c03a2279ce7860bd340b475ff35dea59432ac00f55ec12299275b0a3b","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2020-10-04T12:13:16Z","title_canon_sha256":"cb56ea8522b9bd20294ef5c2654e7623d7f044364bcc36b78eb74025842122be"},"schema_version":"1.0","source":{"id":"2010.01560","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2010.01560","created_at":"2026-07-05T02:12:06Z"},{"alias_kind":"arxiv_version","alias_value":"2010.01560v2","created_at":"2026-07-05T02:12:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2010.01560","created_at":"2026-07-05T02:12:06Z"},{"alias_kind":"pith_short_12","alias_value":"X7XWKHRHJOSR","created_at":"2026-07-05T02:12:06Z"},{"alias_kind":"pith_short_16","alias_value":"X7XWKHRHJOSRR5VH","created_at":"2026-07-05T02:12:06Z"},{"alias_kind":"pith_short_8","alias_value":"X7XWKHRH","created_at":"2026-07-05T02:12:06Z"}],"graph_snapshots":[{"event_id":"sha256:b35d4b137bcb68812805c7abb73bd5bb75e7e619b7368ea7a10b2eb90866be2f","target":"graph","created_at":"2026-07-05T02:12:06Z","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/2010.01560/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We have investigated the basic statistics of the cosmological dispersion measure (DM) -- such as its mean, variance, probability distribution, angular power spectrum and correlation function -- using the state-of-the-art hydrodynamic simulations, IllustrisTNG300, for the fast radio burst (FRB) cosmology. To model the DM statistics, we first measured the free-electron abundance and the power spectrum of its spatial fluctuations. The free-electron power spectrum turns out to be consistent with the dark matter power spectrum at large scales, but it is strongly damped at small scales ($\\lesssim 1$","authors_text":"Asuka Mori, Koki Funahashi, Kunihito Ioka, Ryuichi Takahashi","cross_cats":["gr-qc"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2020-10-04T12:13:16Z","title":"Statistical modelling of the cosmological dispersion measure"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2010.01560","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":"sha256:9c51d7249391d35b8c265771ebe80b6594f9a3b0afd15a4b170abfcd1d424514","target":"record","created_at":"2026-07-05T02:12:06Z","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":"50bffe6c03a2279ce7860bd340b475ff35dea59432ac00f55ec12299275b0a3b","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2020-10-04T12:13:16Z","title_canon_sha256":"cb56ea8522b9bd20294ef5c2654e7623d7f044364bcc36b78eb74025842122be"},"schema_version":"1.0","source":{"id":"2010.01560","kind":"arxiv","version":2}},"canonical_sha256":"bfef651e274ba518f6a79f0f3bba870c87df818906382fbda56c39940debdb5c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bfef651e274ba518f6a79f0f3bba870c87df818906382fbda56c39940debdb5c","first_computed_at":"2026-07-05T02:12:06.688853Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:12:06.688853Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"tA8hhKQPxHh34heulbewVNXz+9/D0436ZiYGCQ28AQ7XHJTU75mc4BRqTmFsfgVwtuce+BZkn6jyB40fPgVdBQ==","signature_status":"signed_v1","signed_at":"2026-07-05T02:12:06.689310Z","signed_message":"canonical_sha256_bytes"},"source_id":"2010.01560","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9c51d7249391d35b8c265771ebe80b6594f9a3b0afd15a4b170abfcd1d424514","sha256:b35d4b137bcb68812805c7abb73bd5bb75e7e619b7368ea7a10b2eb90866be2f"],"state_sha256":"c4ea51026973c20a5907645d02dac3b63e2fad1e742cee844e084790add3c443"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VhKP0hL5soD58IXt0G2P9KjqXBPMxVMYqdv3llfugkrxGhy9BbGz5fDcEw+10ncludB1mlloXYobQ18U5Ug4DA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-02T23:24:00.880691Z","bundle_sha256":"9a418869f98d5db7d37cff69fc3214a2a63ca5183e60b0537930be5e8dd886eb"}}