{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:IGFYGBRT4YDBI2STP7JP3RJKGZ","short_pith_number":"pith:IGFYGBRT","canonical_record":{"source":{"id":"1308.2169","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-08-09T16:14:24Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"362925677ff8eac79392b4fe1257456f50418974e5ae19df12107c21a20a0fbc","abstract_canon_sha256":"b5ea3e3977c79f4a4de808bb64f4b6612058aafa6c682ca219ce0e6d307a4234"},"schema_version":"1.0"},"canonical_sha256":"418b830633e606146a537fd2fdc52a36417f1c4bdb970a133b9d713fdc4a1d06","source":{"kind":"arxiv","id":"1308.2169","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1308.2169","created_at":"2026-05-18T01:48:21Z"},{"alias_kind":"arxiv_version","alias_value":"1308.2169v1","created_at":"2026-05-18T01:48:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1308.2169","created_at":"2026-05-18T01:48:21Z"},{"alias_kind":"pith_short_12","alias_value":"IGFYGBRT4YDB","created_at":"2026-05-18T12:27:46Z"},{"alias_kind":"pith_short_16","alias_value":"IGFYGBRT4YDBI2ST","created_at":"2026-05-18T12:27:46Z"},{"alias_kind":"pith_short_8","alias_value":"IGFYGBRT","created_at":"2026-05-18T12:27:46Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:IGFYGBRT4YDBI2STP7JP3RJKGZ","target":"record","payload":{"canonical_record":{"source":{"id":"1308.2169","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-08-09T16:14:24Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"362925677ff8eac79392b4fe1257456f50418974e5ae19df12107c21a20a0fbc","abstract_canon_sha256":"b5ea3e3977c79f4a4de808bb64f4b6612058aafa6c682ca219ce0e6d307a4234"},"schema_version":"1.0"},"canonical_sha256":"418b830633e606146a537fd2fdc52a36417f1c4bdb970a133b9d713fdc4a1d06","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:48:21.656342Z","signature_b64":"C8O0AIE+fkkIKZK5WeAmVBiTOUqIoQpbqXqyRE1UgI0G8x6uqmr+/D0cvMG/o/xBjAvw4ZByVsquSazQlT6bBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"418b830633e606146a537fd2fdc52a36417f1c4bdb970a133b9d713fdc4a1d06","last_reissued_at":"2026-05-18T01:48:21.655782Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:48:21.655782Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1308.2169","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":"2026-05-18T01:48:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"o3eN+1r/dRQHvU8vfZ0n+0VnkjOzaOP0EdzSGtEaIsexSgjGoI0v7O6lOkYStNUKJjEXLdesFeDekmZHHXvICA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T13:48:52.574669Z"},"content_sha256":"d54cd4bc5324fd779c1e5c29d68f32095ecdcfd7de729e089d716e573fd49bcb","schema_version":"1.0","event_id":"sha256:d54cd4bc5324fd779c1e5c29d68f32095ecdcfd7de729e089d716e573fd49bcb"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:IGFYGBRT4YDBI2STP7JP3RJKGZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Signatures of particle decay in 21 cm absorptions from first minihalos","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.HE"],"primary_cat":"astro-ph.CO","authors_text":"E.O. Vasiliev, Yu.A. Shchekinov","submitted_at":"2013-08-09T16:14:24Z","abstract_excerpt":"The imprint of decaying dark matter (DM) particles in characteristics of the \"21 cm fores\" -- absorptions in 21 cm from minihalos in spectra of distant radio-loud sources -- is considered within a 1D self-consistent hydrodynamic description of minihalos from their turnaround point to virialization. The most pronounced influence of decaying DM on evolution of minihalos is found in the mass range $M=10^5-10^6\\msun$, for which unstable DM with the current upper limit of the ionization rate $\\xi_{L} = 0.59\\times 10^{-25}$ s$^{-1}$ depresses 21 cm optical depth by an order of magnitude compared to "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1308.2169","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":"2026-05-18T01:48:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"J8l0R2pnmTdolOHMZVA5gJcrZGv3a/aZpaYxpVuZMC2czKVVig5iE4gaWjUE+582WZO7J8BJP6eyY+pm5q9QCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T13:48:52.575003Z"},"content_sha256":"fc722cf4ef07f166bc4665445c1ce90cd74e9936455610f1eb0dc1beca8857e1","schema_version":"1.0","event_id":"sha256:fc722cf4ef07f166bc4665445c1ce90cd74e9936455610f1eb0dc1beca8857e1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IGFYGBRT4YDBI2STP7JP3RJKGZ/bundle.json","state_url":"https://pith.science/pith/IGFYGBRT4YDBI2STP7JP3RJKGZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IGFYGBRT4YDBI2STP7JP3RJKGZ/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":"2026-06-01T13:48:52Z","links":{"resolver":"https://pith.science/pith/IGFYGBRT4YDBI2STP7JP3RJKGZ","bundle":"https://pith.science/pith/IGFYGBRT4YDBI2STP7JP3RJKGZ/bundle.json","state":"https://pith.science/pith/IGFYGBRT4YDBI2STP7JP3RJKGZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IGFYGBRT4YDBI2STP7JP3RJKGZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:IGFYGBRT4YDBI2STP7JP3RJKGZ","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":"b5ea3e3977c79f4a4de808bb64f4b6612058aafa6c682ca219ce0e6d307a4234","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-08-09T16:14:24Z","title_canon_sha256":"362925677ff8eac79392b4fe1257456f50418974e5ae19df12107c21a20a0fbc"},"schema_version":"1.0","source":{"id":"1308.2169","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1308.2169","created_at":"2026-05-18T01:48:21Z"},{"alias_kind":"arxiv_version","alias_value":"1308.2169v1","created_at":"2026-05-18T01:48:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1308.2169","created_at":"2026-05-18T01:48:21Z"},{"alias_kind":"pith_short_12","alias_value":"IGFYGBRT4YDB","created_at":"2026-05-18T12:27:46Z"},{"alias_kind":"pith_short_16","alias_value":"IGFYGBRT4YDBI2ST","created_at":"2026-05-18T12:27:46Z"},{"alias_kind":"pith_short_8","alias_value":"IGFYGBRT","created_at":"2026-05-18T12:27:46Z"}],"graph_snapshots":[{"event_id":"sha256:fc722cf4ef07f166bc4665445c1ce90cd74e9936455610f1eb0dc1beca8857e1","target":"graph","created_at":"2026-05-18T01:48:21Z","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 imprint of decaying dark matter (DM) particles in characteristics of the \"21 cm fores\" -- absorptions in 21 cm from minihalos in spectra of distant radio-loud sources -- is considered within a 1D self-consistent hydrodynamic description of minihalos from their turnaround point to virialization. The most pronounced influence of decaying DM on evolution of minihalos is found in the mass range $M=10^5-10^6\\msun$, for which unstable DM with the current upper limit of the ionization rate $\\xi_{L} = 0.59\\times 10^{-25}$ s$^{-1}$ depresses 21 cm optical depth by an order of magnitude compared to ","authors_text":"E.O. Vasiliev, Yu.A. Shchekinov","cross_cats":["astro-ph.HE"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-08-09T16:14:24Z","title":"Signatures of particle decay in 21 cm absorptions from first minihalos"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1308.2169","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:d54cd4bc5324fd779c1e5c29d68f32095ecdcfd7de729e089d716e573fd49bcb","target":"record","created_at":"2026-05-18T01:48:21Z","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":"b5ea3e3977c79f4a4de808bb64f4b6612058aafa6c682ca219ce0e6d307a4234","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-08-09T16:14:24Z","title_canon_sha256":"362925677ff8eac79392b4fe1257456f50418974e5ae19df12107c21a20a0fbc"},"schema_version":"1.0","source":{"id":"1308.2169","kind":"arxiv","version":1}},"canonical_sha256":"418b830633e606146a537fd2fdc52a36417f1c4bdb970a133b9d713fdc4a1d06","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"418b830633e606146a537fd2fdc52a36417f1c4bdb970a133b9d713fdc4a1d06","first_computed_at":"2026-05-18T01:48:21.655782Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:48:21.655782Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"C8O0AIE+fkkIKZK5WeAmVBiTOUqIoQpbqXqyRE1UgI0G8x6uqmr+/D0cvMG/o/xBjAvw4ZByVsquSazQlT6bBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:48:21.656342Z","signed_message":"canonical_sha256_bytes"},"source_id":"1308.2169","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d54cd4bc5324fd779c1e5c29d68f32095ecdcfd7de729e089d716e573fd49bcb","sha256:fc722cf4ef07f166bc4665445c1ce90cd74e9936455610f1eb0dc1beca8857e1"],"state_sha256":"642740f1abf905ab3865b78c7103bfe087fa27020c6c9e52a1489911f7375ca9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lesRPpFTdPQBw2aIzFsLZSwsxfrOP9cqQBKyJSntR2qW6ge0ipkzbuQV1xijlN6YB/b0BJuvEG/fG8t2upxQBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T13:48:52.576829Z","bundle_sha256":"d90f04396562e996836b96ee57b1c6d04e67fb167242080feae39b9c1794891a"}}