{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:RSLKNU2ZO35BKRF53UOBVKIIGD","short_pith_number":"pith:RSLKNU2Z","canonical_record":{"source":{"id":"2607.14211","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2026-07-15T18:00:01Z","cross_cats_sorted":[],"title_canon_sha256":"c2e2d6cbb8ed9e94fc5799db0b2c76dcc9afa086992260b43cc8b8bfcee9bb8f","abstract_canon_sha256":"2ca95deed8f5ad06188e6828b405e41ac6285be2fa063dbba634452346374f3d"},"schema_version":"1.0"},"canonical_sha256":"8c96a6d35976fa1544bddd1c1aa90830f1fb16d54006004e4af2334c3ee9397e","source":{"kind":"arxiv","id":"2607.14211","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.14211","created_at":"2026-07-17T00:20:58Z"},{"alias_kind":"arxiv_version","alias_value":"2607.14211v1","created_at":"2026-07-17T00:20:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.14211","created_at":"2026-07-17T00:20:58Z"},{"alias_kind":"pith_short_12","alias_value":"RSLKNU2ZO35B","created_at":"2026-07-17T00:20:58Z"},{"alias_kind":"pith_short_16","alias_value":"RSLKNU2ZO35BKRF5","created_at":"2026-07-17T00:20:58Z"},{"alias_kind":"pith_short_8","alias_value":"RSLKNU2Z","created_at":"2026-07-17T00:20:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:RSLKNU2ZO35BKRF53UOBVKIIGD","target":"record","payload":{"canonical_record":{"source":{"id":"2607.14211","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2026-07-15T18:00:01Z","cross_cats_sorted":[],"title_canon_sha256":"c2e2d6cbb8ed9e94fc5799db0b2c76dcc9afa086992260b43cc8b8bfcee9bb8f","abstract_canon_sha256":"2ca95deed8f5ad06188e6828b405e41ac6285be2fa063dbba634452346374f3d"},"schema_version":"1.0"},"canonical_sha256":"8c96a6d35976fa1544bddd1c1aa90830f1fb16d54006004e4af2334c3ee9397e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-17T00:20:58.445303Z","signature_b64":"KA5H4giLBdUZAGY1QK9y5xGdXN/lDWwIlT17xPkMRXS/qpxhuaRt8w5DwMcN4D6j14RD5ol9ggP0gXBxbjXzAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8c96a6d35976fa1544bddd1c1aa90830f1fb16d54006004e4af2334c3ee9397e","last_reissued_at":"2026-07-17T00:20:58.444424Z","signature_status":"signed_v1","first_computed_at":"2026-07-17T00:20:58.444424Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2607.14211","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":"2026-07-17T00:20:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jrSxy5fHcgqDQyB3J1I+nAZo+I5JsAV7ooRNfyH1YEh7EFUaM00kMj8Icss/53HtrDTMY03AD6Y4fV1NgRVSAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T18:56:57.216410Z"},"content_sha256":"404448f3f2459161a4e1b8425991774f989200efc8fb19866ac39ca06f5bfb17","schema_version":"1.0","event_id":"sha256:404448f3f2459161a4e1b8425991774f989200efc8fb19866ac39ca06f5bfb17"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:RSLKNU2ZO35BKRF53UOBVKIIGD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Non-Primordial Contribution to the Cosmic Microwave Background","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Akshith Asundi, Vikram Khaire","submitted_at":"2026-07-15T18:00:01Z","abstract_excerpt":"The cosmic microwave background is interpreted as relic thermal radiation from the epoch of recombination at z~1090. Recent work by Gjergo & Kroupa (GK25) have challenged this assumption proposing that dust-enshrouded starbursts in the progenitors of massive early-type galaxies at z~15-20 contribute to the CMB at the percent level of the present-day CMB energy density. Existing test of this scenario rely on CMB monopole; here we present the first test against the CMB anisotropy power spectrum, which probes the dynamical imprint of the radiation content on the sound horizon and acoustic peaks. "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.14211","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/2607.14211/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":"2026-07-17T00:20:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6ActJzST4l1JwztLwiXhkiJY8d2/Iz1zpDwbXOlBA0mRd1gDiTSggHOwZRj82Q14X29RrUZA6T98I/nLAtUtAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T18:56:57.217325Z"},"content_sha256":"7df8805fc7d1ed234b5074c19aaa2cf1688c1496ece71f9eabae427266d9588a","schema_version":"1.0","event_id":"sha256:7df8805fc7d1ed234b5074c19aaa2cf1688c1496ece71f9eabae427266d9588a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/RSLKNU2ZO35BKRF53UOBVKIIGD/bundle.json","state_url":"https://pith.science/pith/RSLKNU2ZO35BKRF53UOBVKIIGD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/RSLKNU2ZO35BKRF53UOBVKIIGD/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":"2026-08-03T18:56:57Z","links":{"resolver":"https://pith.science/pith/RSLKNU2ZO35BKRF53UOBVKIIGD","bundle":"https://pith.science/pith/RSLKNU2ZO35BKRF53UOBVKIIGD/bundle.json","state":"https://pith.science/pith/RSLKNU2ZO35BKRF53UOBVKIIGD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/RSLKNU2ZO35BKRF53UOBVKIIGD/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:RSLKNU2ZO35BKRF53UOBVKIIGD","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":"2ca95deed8f5ad06188e6828b405e41ac6285be2fa063dbba634452346374f3d","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2026-07-15T18:00:01Z","title_canon_sha256":"c2e2d6cbb8ed9e94fc5799db0b2c76dcc9afa086992260b43cc8b8bfcee9bb8f"},"schema_version":"1.0","source":{"id":"2607.14211","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.14211","created_at":"2026-07-17T00:20:58Z"},{"alias_kind":"arxiv_version","alias_value":"2607.14211v1","created_at":"2026-07-17T00:20:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.14211","created_at":"2026-07-17T00:20:58Z"},{"alias_kind":"pith_short_12","alias_value":"RSLKNU2ZO35B","created_at":"2026-07-17T00:20:58Z"},{"alias_kind":"pith_short_16","alias_value":"RSLKNU2ZO35BKRF5","created_at":"2026-07-17T00:20:58Z"},{"alias_kind":"pith_short_8","alias_value":"RSLKNU2Z","created_at":"2026-07-17T00:20:58Z"}],"graph_snapshots":[{"event_id":"sha256:7df8805fc7d1ed234b5074c19aaa2cf1688c1496ece71f9eabae427266d9588a","target":"graph","created_at":"2026-07-17T00:20:58Z","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/2607.14211/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The cosmic microwave background is interpreted as relic thermal radiation from the epoch of recombination at z~1090. Recent work by Gjergo & Kroupa (GK25) have challenged this assumption proposing that dust-enshrouded starbursts in the progenitors of massive early-type galaxies at z~15-20 contribute to the CMB at the percent level of the present-day CMB energy density. Existing test of this scenario rely on CMB monopole; here we present the first test against the CMB anisotropy power spectrum, which probes the dynamical imprint of the radiation content on the sound horizon and acoustic peaks. ","authors_text":"Akshith Asundi, Vikram Khaire","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2026-07-15T18:00:01Z","title":"Non-Primordial Contribution to the Cosmic Microwave Background"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.14211","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":"sha256:404448f3f2459161a4e1b8425991774f989200efc8fb19866ac39ca06f5bfb17","target":"record","created_at":"2026-07-17T00:20:58Z","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":"2ca95deed8f5ad06188e6828b405e41ac6285be2fa063dbba634452346374f3d","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2026-07-15T18:00:01Z","title_canon_sha256":"c2e2d6cbb8ed9e94fc5799db0b2c76dcc9afa086992260b43cc8b8bfcee9bb8f"},"schema_version":"1.0","source":{"id":"2607.14211","kind":"arxiv","version":1}},"canonical_sha256":"8c96a6d35976fa1544bddd1c1aa90830f1fb16d54006004e4af2334c3ee9397e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8c96a6d35976fa1544bddd1c1aa90830f1fb16d54006004e4af2334c3ee9397e","first_computed_at":"2026-07-17T00:20:58.444424Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-17T00:20:58.444424Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"KA5H4giLBdUZAGY1QK9y5xGdXN/lDWwIlT17xPkMRXS/qpxhuaRt8w5DwMcN4D6j14RD5ol9ggP0gXBxbjXzAw==","signature_status":"signed_v1","signed_at":"2026-07-17T00:20:58.445303Z","signed_message":"canonical_sha256_bytes"},"source_id":"2607.14211","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:404448f3f2459161a4e1b8425991774f989200efc8fb19866ac39ca06f5bfb17","sha256:7df8805fc7d1ed234b5074c19aaa2cf1688c1496ece71f9eabae427266d9588a"],"state_sha256":"0146958aabedcacb05a52827402f903751769fbcee848f9c86f7c42ccb9b2c7c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GlAwKiZxcOvVa07QcFo6k3r6OnbweUfJSUle1Di5UwZHTBvWg9kRmXfEkpvkqvrQTwfm7KMAu/n39Zf5Ok9JDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-03T18:56:57.270851Z","bundle_sha256":"0bb58e50aa8dd45fd547609e61e932b8e3672a6c531c5edfcf3725662043faf8"}}