{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:2ZXDHW4ZLVMCNP254RB472M5LW","short_pith_number":"pith:2ZXDHW4Z","canonical_record":{"source":{"id":"2405.09449","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2024-05-15T15:46:07Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"10abe37e331ed5ac1951532688ecaee77d1484acbe93e6b33fa6b394a9d2b10c","abstract_canon_sha256":"7494382c731c396a08348495120ea6c591f52feb4c30a4b00dd24e7cd8711f94"},"schema_version":"1.0"},"canonical_sha256":"d66e33db995d5826bf5de443cfe99d5db1a6b7fc97724ac050e0f2f6033d1fca","source":{"kind":"arxiv","id":"2405.09449","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2405.09449","created_at":"2026-07-05T08:19:30Z"},{"alias_kind":"arxiv_version","alias_value":"2405.09449v1","created_at":"2026-07-05T08:19:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2405.09449","created_at":"2026-07-05T08:19:30Z"},{"alias_kind":"pith_short_12","alias_value":"2ZXDHW4ZLVMC","created_at":"2026-07-05T08:19:30Z"},{"alias_kind":"pith_short_16","alias_value":"2ZXDHW4ZLVMCNP25","created_at":"2026-07-05T08:19:30Z"},{"alias_kind":"pith_short_8","alias_value":"2ZXDHW4Z","created_at":"2026-07-05T08:19:30Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:2ZXDHW4ZLVMCNP254RB472M5LW","target":"record","payload":{"canonical_record":{"source":{"id":"2405.09449","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2024-05-15T15:46:07Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"10abe37e331ed5ac1951532688ecaee77d1484acbe93e6b33fa6b394a9d2b10c","abstract_canon_sha256":"7494382c731c396a08348495120ea6c591f52feb4c30a4b00dd24e7cd8711f94"},"schema_version":"1.0"},"canonical_sha256":"d66e33db995d5826bf5de443cfe99d5db1a6b7fc97724ac050e0f2f6033d1fca","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T08:19:30.617531Z","signature_b64":"hKQGgiYLN50b54lA7VbAGkBQyBTexKcct5Z2SgYZWxSALgFeG/4fQjdSnyitbFy8dai/5m0nBH6K+hlTaGsJCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d66e33db995d5826bf5de443cfe99d5db1a6b7fc97724ac050e0f2f6033d1fca","last_reissued_at":"2026-07-05T08:19:30.617011Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T08:19:30.617011Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2405.09449","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":"2026-07-05T08:19:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5SnBTckWIbJ5URJNDmmneO2kVdkKwEmEyuEe3r4ND2G7N5RsgV4vvwB8bQIpZZNoCwX160mAYDwOsgLsS7baDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T14:08:49.274103Z"},"content_sha256":"b0e9da6eb833fa89bec95f2aef85ebf65b80bb6675975d37097c2a09ce6a616f","schema_version":"1.0","event_id":"sha256:b0e9da6eb833fa89bec95f2aef85ebf65b80bb6675975d37097c2a09ce6a616f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:2ZXDHW4ZLVMCNP254RB472M5LW","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Constraining UV freeze-in of light relics with current and next-generation CMB observations","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ph"],"primary_cat":"astro-ph.CO","authors_text":"Luca Caloni, Martina Gerbino, Massimiliano Lattanzi, Patrick Stengel","submitted_at":"2024-05-15T15:46:07Z","abstract_excerpt":"Cosmological observations allow to measure the abundance of light relics produced in the early Universe. Most studies focus on the thermal freeze-out scenario, yet light relics produced by freeze-in are generic for models in which new light degrees of freedom do not couple strongly enough to the Standard Model (SM) plasma to allow for full thermalization in the early Universe. In ultraviolet (UV) freeze-in scenarios, rates for light relic production associated with non-renormalizable interactions typical of beyond the SM (BSM) models grow with temperature more quickly than the Hubble rate. Thu"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2405.09449","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/2405.09449/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":"2026-07-05T08:19:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MAjzkEVhXEDhCqXZprFv6T2tKeHm37uFKehJwIB9+7AizCj7B/w4wbB/8WTVD/4Z9a9rrTx0LkD8asMaEZprCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T14:08:49.274994Z"},"content_sha256":"8fbc5e9164c2048367ee7968200ed55e6bca8c953529eb553892c033a721c51f","schema_version":"1.0","event_id":"sha256:8fbc5e9164c2048367ee7968200ed55e6bca8c953529eb553892c033a721c51f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2ZXDHW4ZLVMCNP254RB472M5LW/bundle.json","state_url":"https://pith.science/pith/2ZXDHW4ZLVMCNP254RB472M5LW/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2ZXDHW4ZLVMCNP254RB472M5LW/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":"2026-08-03T14:08:49Z","links":{"resolver":"https://pith.science/pith/2ZXDHW4ZLVMCNP254RB472M5LW","bundle":"https://pith.science/pith/2ZXDHW4ZLVMCNP254RB472M5LW/bundle.json","state":"https://pith.science/pith/2ZXDHW4ZLVMCNP254RB472M5LW/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2ZXDHW4ZLVMCNP254RB472M5LW/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:2ZXDHW4ZLVMCNP254RB472M5LW","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":"7494382c731c396a08348495120ea6c591f52feb4c30a4b00dd24e7cd8711f94","cross_cats_sorted":["hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2024-05-15T15:46:07Z","title_canon_sha256":"10abe37e331ed5ac1951532688ecaee77d1484acbe93e6b33fa6b394a9d2b10c"},"schema_version":"1.0","source":{"id":"2405.09449","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2405.09449","created_at":"2026-07-05T08:19:30Z"},{"alias_kind":"arxiv_version","alias_value":"2405.09449v1","created_at":"2026-07-05T08:19:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2405.09449","created_at":"2026-07-05T08:19:30Z"},{"alias_kind":"pith_short_12","alias_value":"2ZXDHW4ZLVMC","created_at":"2026-07-05T08:19:30Z"},{"alias_kind":"pith_short_16","alias_value":"2ZXDHW4ZLVMCNP25","created_at":"2026-07-05T08:19:30Z"},{"alias_kind":"pith_short_8","alias_value":"2ZXDHW4Z","created_at":"2026-07-05T08:19:30Z"}],"graph_snapshots":[{"event_id":"sha256:8fbc5e9164c2048367ee7968200ed55e6bca8c953529eb553892c033a721c51f","target":"graph","created_at":"2026-07-05T08:19:30Z","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/2405.09449/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Cosmological observations allow to measure the abundance of light relics produced in the early Universe. Most studies focus on the thermal freeze-out scenario, yet light relics produced by freeze-in are generic for models in which new light degrees of freedom do not couple strongly enough to the Standard Model (SM) plasma to allow for full thermalization in the early Universe. In ultraviolet (UV) freeze-in scenarios, rates for light relic production associated with non-renormalizable interactions typical of beyond the SM (BSM) models grow with temperature more quickly than the Hubble rate. Thu","authors_text":"Luca Caloni, Martina Gerbino, Massimiliano Lattanzi, Patrick Stengel","cross_cats":["hep-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2024-05-15T15:46:07Z","title":"Constraining UV freeze-in of light relics with current and next-generation CMB observations"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2405.09449","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:b0e9da6eb833fa89bec95f2aef85ebf65b80bb6675975d37097c2a09ce6a616f","target":"record","created_at":"2026-07-05T08:19:30Z","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":"7494382c731c396a08348495120ea6c591f52feb4c30a4b00dd24e7cd8711f94","cross_cats_sorted":["hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2024-05-15T15:46:07Z","title_canon_sha256":"10abe37e331ed5ac1951532688ecaee77d1484acbe93e6b33fa6b394a9d2b10c"},"schema_version":"1.0","source":{"id":"2405.09449","kind":"arxiv","version":1}},"canonical_sha256":"d66e33db995d5826bf5de443cfe99d5db1a6b7fc97724ac050e0f2f6033d1fca","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d66e33db995d5826bf5de443cfe99d5db1a6b7fc97724ac050e0f2f6033d1fca","first_computed_at":"2026-07-05T08:19:30.617011Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T08:19:30.617011Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"hKQGgiYLN50b54lA7VbAGkBQyBTexKcct5Z2SgYZWxSALgFeG/4fQjdSnyitbFy8dai/5m0nBH6K+hlTaGsJCQ==","signature_status":"signed_v1","signed_at":"2026-07-05T08:19:30.617531Z","signed_message":"canonical_sha256_bytes"},"source_id":"2405.09449","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b0e9da6eb833fa89bec95f2aef85ebf65b80bb6675975d37097c2a09ce6a616f","sha256:8fbc5e9164c2048367ee7968200ed55e6bca8c953529eb553892c033a721c51f"],"state_sha256":"d9282501ac2c9ef9216c915cdae390bf7cc723e4ccb3ed191370303305fc35d3"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0g5fZTb5CoIplUZfHKyA5x+Qur1g6+iMemNrfWjw+eFoQ/7SPuJGDgAcncEzoZ2UXkU2IRpGChdEM5Qg2rwNBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-03T14:08:49.285902Z","bundle_sha256":"00d0bee68e0824848a0dd2ebd0a64c7d2bf8290e3822b1b2ef3c1dd41fcf7f52"}}