{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:YQC4V4UTHD33T3O6EJ676I3XNV","short_pith_number":"pith:YQC4V4UT","canonical_record":{"source":{"id":"2102.06214","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ph","submitted_at":"2021-02-11T19:00:04Z","cross_cats_sorted":["astro-ph.CO","hep-th"],"title_canon_sha256":"2ea33e31f8cb425b7150232a3f3dcee01b7f9d7faeced3f530934f69d7fe3af8","abstract_canon_sha256":"6d7651117ec8a055a6967a84ba0f40b7cf04eaeae1a888ebbcfdbd1b49c74294"},"schema_version":"1.0"},"canonical_sha256":"c405caf29338f7b9edde227dff23776d77ba2b9d322c295630e6883d28e55c13","source":{"kind":"arxiv","id":"2102.06214","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2102.06214","created_at":"2026-07-05T02:49:24Z"},{"alias_kind":"arxiv_version","alias_value":"2102.06214v2","created_at":"2026-07-05T02:49:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2102.06214","created_at":"2026-07-05T02:49:24Z"},{"alias_kind":"pith_short_12","alias_value":"YQC4V4UTHD33","created_at":"2026-07-05T02:49:24Z"},{"alias_kind":"pith_short_16","alias_value":"YQC4V4UTHD33T3O6","created_at":"2026-07-05T02:49:24Z"},{"alias_kind":"pith_short_8","alias_value":"YQC4V4UT","created_at":"2026-07-05T02:49:24Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:YQC4V4UTHD33T3O6EJ676I3XNV","target":"record","payload":{"canonical_record":{"source":{"id":"2102.06214","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ph","submitted_at":"2021-02-11T19:00:04Z","cross_cats_sorted":["astro-ph.CO","hep-th"],"title_canon_sha256":"2ea33e31f8cb425b7150232a3f3dcee01b7f9d7faeced3f530934f69d7fe3af8","abstract_canon_sha256":"6d7651117ec8a055a6967a84ba0f40b7cf04eaeae1a888ebbcfdbd1b49c74294"},"schema_version":"1.0"},"canonical_sha256":"c405caf29338f7b9edde227dff23776d77ba2b9d322c295630e6883d28e55c13","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:49:24.996947Z","signature_b64":"n5C3orTcgwPE0DtqzTmgQResW4IxezWr3mclAduknCr7HCEQElJ3R/gCIffjph5i8MdGhBZEkUT4PpvpFLCQAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c405caf29338f7b9edde227dff23776d77ba2b9d322c295630e6883d28e55c13","last_reissued_at":"2026-07-05T02:49:24.996481Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:49:24.996481Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2102.06214","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":"2026-07-05T02:49:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VwvHaKRxOFTHbxILhcsSGSe/++zOJb8zB/wusmpYO4K4WlFx9rJoPgwPz+rXKt+/9KB0gVRPwWvQYak3eSo9DA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-11T01:54:08.795127Z"},"content_sha256":"8f00205675088357e9751b4e4eee45ba4f0d0cafc22742258fe539c461fbe4cb","schema_version":"1.0","event_id":"sha256:8f00205675088357e9751b4e4eee45ba4f0d0cafc22742258fe539c461fbe4cb"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:YQC4V4UTHD33T3O6EJ676I3XNV","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Gravitational Production of Dark Matter during Reheating","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.CO","hep-th"],"primary_cat":"hep-ph","authors_text":"Keith A. Olive, Yann Mambrini","submitted_at":"2021-02-11T19:00:04Z","abstract_excerpt":"We consider the direct $s$-channel gravitational production of dark matter during the reheating process. Independent of the identity of the dark matter candidate or its non-gravitational interactions, the gravitational process is always present and provides a minimal production mechanism. During reheating, a thermal bath is quickly generated with a maximum temperature $T_{\\rm max}$, and the temperature decreases as the inflaton continues to decay until the energy densities of radiation and inflaton oscillations are equal, at $T_{\\rm RH}$. During these oscillations, $s$-channel gravitational pr"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2102.06214","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/2102.06214/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":"2026-07-05T02:49:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nl8lhsaHigPYE5pMEDYnpErn2UjN3JwY1Zie7DiFL5WK2WqAyzH2bR0ZoNjTs6LDcdXjSuaJHNAgEOWahOKfAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-11T01:54:08.795671Z"},"content_sha256":"0b831b18d5b93cf1b30b32c3523b19697f3fe338b5f1bc89f801c5d94ea5f0f9","schema_version":"1.0","event_id":"sha256:0b831b18d5b93cf1b30b32c3523b19697f3fe338b5f1bc89f801c5d94ea5f0f9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YQC4V4UTHD33T3O6EJ676I3XNV/bundle.json","state_url":"https://pith.science/pith/YQC4V4UTHD33T3O6EJ676I3XNV/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YQC4V4UTHD33T3O6EJ676I3XNV/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":"2026-08-11T01:54:08Z","links":{"resolver":"https://pith.science/pith/YQC4V4UTHD33T3O6EJ676I3XNV","bundle":"https://pith.science/pith/YQC4V4UTHD33T3O6EJ676I3XNV/bundle.json","state":"https://pith.science/pith/YQC4V4UTHD33T3O6EJ676I3XNV/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YQC4V4UTHD33T3O6EJ676I3XNV/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:YQC4V4UTHD33T3O6EJ676I3XNV","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":"6d7651117ec8a055a6967a84ba0f40b7cf04eaeae1a888ebbcfdbd1b49c74294","cross_cats_sorted":["astro-ph.CO","hep-th"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ph","submitted_at":"2021-02-11T19:00:04Z","title_canon_sha256":"2ea33e31f8cb425b7150232a3f3dcee01b7f9d7faeced3f530934f69d7fe3af8"},"schema_version":"1.0","source":{"id":"2102.06214","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2102.06214","created_at":"2026-07-05T02:49:24Z"},{"alias_kind":"arxiv_version","alias_value":"2102.06214v2","created_at":"2026-07-05T02:49:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2102.06214","created_at":"2026-07-05T02:49:24Z"},{"alias_kind":"pith_short_12","alias_value":"YQC4V4UTHD33","created_at":"2026-07-05T02:49:24Z"},{"alias_kind":"pith_short_16","alias_value":"YQC4V4UTHD33T3O6","created_at":"2026-07-05T02:49:24Z"},{"alias_kind":"pith_short_8","alias_value":"YQC4V4UT","created_at":"2026-07-05T02:49:24Z"}],"graph_snapshots":[{"event_id":"sha256:0b831b18d5b93cf1b30b32c3523b19697f3fe338b5f1bc89f801c5d94ea5f0f9","target":"graph","created_at":"2026-07-05T02:49:24Z","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/2102.06214/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We consider the direct $s$-channel gravitational production of dark matter during the reheating process. Independent of the identity of the dark matter candidate or its non-gravitational interactions, the gravitational process is always present and provides a minimal production mechanism. During reheating, a thermal bath is quickly generated with a maximum temperature $T_{\\rm max}$, and the temperature decreases as the inflaton continues to decay until the energy densities of radiation and inflaton oscillations are equal, at $T_{\\rm RH}$. During these oscillations, $s$-channel gravitational pr","authors_text":"Keith A. Olive, Yann Mambrini","cross_cats":["astro-ph.CO","hep-th"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ph","submitted_at":"2021-02-11T19:00:04Z","title":"Gravitational Production of Dark Matter during Reheating"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2102.06214","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":"sha256:8f00205675088357e9751b4e4eee45ba4f0d0cafc22742258fe539c461fbe4cb","target":"record","created_at":"2026-07-05T02:49:24Z","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":"6d7651117ec8a055a6967a84ba0f40b7cf04eaeae1a888ebbcfdbd1b49c74294","cross_cats_sorted":["astro-ph.CO","hep-th"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ph","submitted_at":"2021-02-11T19:00:04Z","title_canon_sha256":"2ea33e31f8cb425b7150232a3f3dcee01b7f9d7faeced3f530934f69d7fe3af8"},"schema_version":"1.0","source":{"id":"2102.06214","kind":"arxiv","version":2}},"canonical_sha256":"c405caf29338f7b9edde227dff23776d77ba2b9d322c295630e6883d28e55c13","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c405caf29338f7b9edde227dff23776d77ba2b9d322c295630e6883d28e55c13","first_computed_at":"2026-07-05T02:49:24.996481Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:49:24.996481Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"n5C3orTcgwPE0DtqzTmgQResW4IxezWr3mclAduknCr7HCEQElJ3R/gCIffjph5i8MdGhBZEkUT4PpvpFLCQAQ==","signature_status":"signed_v1","signed_at":"2026-07-05T02:49:24.996947Z","signed_message":"canonical_sha256_bytes"},"source_id":"2102.06214","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8f00205675088357e9751b4e4eee45ba4f0d0cafc22742258fe539c461fbe4cb","sha256:0b831b18d5b93cf1b30b32c3523b19697f3fe338b5f1bc89f801c5d94ea5f0f9"],"state_sha256":"3f7881be74958c2aacad15faef5fa187f161b4175509b8041769f0af82c16b02"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LlAzQs++f20CtrD5xZaPEYIhDuzCWJHIFe7dV/edWXPvEIGP0r4xjr7YEhZEN8ec3B4Jkmzw/u+tOffxQInJBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-11T01:54:08.800030Z","bundle_sha256":"26dea6a4623e40e29f85b671d58383e6389651da7dcad1a6e1f85f4886a7badf"}}