{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:IUM3H4WEWF2Z3SXLUREL7EEVY2","short_pith_number":"pith:IUM3H4WE","canonical_record":{"source":{"id":"2112.11486","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2021-12-21T19:05:38Z","cross_cats_sorted":["hep-ph","hep-th"],"title_canon_sha256":"8de0f62b1f4f5f38d5de1deaadcf4a8650af8521d327bab868c119c6c4c8c436","abstract_canon_sha256":"a72159170165cffb98a8a10705f7cf80d8c59e79a05c2177517aaf6bc98593db"},"schema_version":"1.0"},"canonical_sha256":"4519b3f2c4b1759dcaeba448bf9095c69b55850907cde7888d937a268b7fa2e7","source":{"kind":"arxiv","id":"2112.11486","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2112.11486","created_at":"2026-07-05T04:33:27Z"},{"alias_kind":"arxiv_version","alias_value":"2112.11486v2","created_at":"2026-07-05T04:33:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2112.11486","created_at":"2026-07-05T04:33:27Z"},{"alias_kind":"pith_short_12","alias_value":"IUM3H4WEWF2Z","created_at":"2026-07-05T04:33:27Z"},{"alias_kind":"pith_short_16","alias_value":"IUM3H4WEWF2Z3SXL","created_at":"2026-07-05T04:33:27Z"},{"alias_kind":"pith_short_8","alias_value":"IUM3H4WE","created_at":"2026-07-05T04:33:27Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:IUM3H4WEWF2Z3SXLUREL7EEVY2","target":"record","payload":{"canonical_record":{"source":{"id":"2112.11486","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2021-12-21T19:05:38Z","cross_cats_sorted":["hep-ph","hep-th"],"title_canon_sha256":"8de0f62b1f4f5f38d5de1deaadcf4a8650af8521d327bab868c119c6c4c8c436","abstract_canon_sha256":"a72159170165cffb98a8a10705f7cf80d8c59e79a05c2177517aaf6bc98593db"},"schema_version":"1.0"},"canonical_sha256":"4519b3f2c4b1759dcaeba448bf9095c69b55850907cde7888d937a268b7fa2e7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:33:27.880376Z","signature_b64":"Ahl1X+6eDQKWq7bRSM3ebKfLTXhFyUxApRzZCNPJD22AF6njf0ka4ZgPjs7HiGQP6wg9huFJ/6DQith/S5zBDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4519b3f2c4b1759dcaeba448bf9095c69b55850907cde7888d937a268b7fa2e7","last_reissued_at":"2026-07-05T04:33:27.879951Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:33:27.879951Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2112.11486","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":"2026-07-05T04:33:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qnUi6GTbxn+P59WYLu/TI/rViY9MOibfqzSVERBmdzd4XBVo+i/HO+zzjOImNzYZ1+K9A0zUKdL1oWgXEzQEAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T11:14:58.384832Z"},"content_sha256":"52747fe144c029063e4b2e7b21a58df930373454a6514825a229cc250ef760e1","schema_version":"1.0","event_id":"sha256:52747fe144c029063e4b2e7b21a58df930373454a6514825a229cc250ef760e1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:IUM3H4WEWF2Z3SXLUREL7EEVY2","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A Faster Growth of Perturbations in an Early Matter Dominated Epoch: Primordial Black Holes and Gravitational Waves","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["hep-ph","hep-th"],"primary_cat":"astro-ph.CO","authors_text":"Anshuman Maharana, Francesco Muia, Subinoy Das","submitted_at":"2021-12-21T19:05:38Z","abstract_excerpt":"We present a scenario for fast growth of cosmological perturbations; $\\delta(t) \\sim a(t)^s$, $a(t)$ being the scale factor, with $s > 10$ for the numerical examples reported in this article. The basic ingredients of the scenario are an early matter dominated era and the dark fermion which experiences a scalar mediated force during the epoch. Both of these arise in string/supergravity models. The fast growth occurs for sub-horizon density perturbations of the dark fermion. The fast growth has a rich set of phenomenological implications. We outline implications for the formation of primordial b"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2112.11486","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/2112.11486/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":"2026-07-05T04:33:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"V45N/LViGFqBbVSl7+p/52qfxe9n+8UYOprwvRdS2JtUgRIFcFRqXqSBfl9xtotepCOU8+hhZzx1CV/RrRRMDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T11:14:58.385225Z"},"content_sha256":"b16a95a0460f17d0f8da337154dab8aaba5a18e1e56878331b860b8d51fc7d20","schema_version":"1.0","event_id":"sha256:b16a95a0460f17d0f8da337154dab8aaba5a18e1e56878331b860b8d51fc7d20"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IUM3H4WEWF2Z3SXLUREL7EEVY2/bundle.json","state_url":"https://pith.science/pith/IUM3H4WEWF2Z3SXLUREL7EEVY2/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IUM3H4WEWF2Z3SXLUREL7EEVY2/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":"2026-08-05T11:14:58Z","links":{"resolver":"https://pith.science/pith/IUM3H4WEWF2Z3SXLUREL7EEVY2","bundle":"https://pith.science/pith/IUM3H4WEWF2Z3SXLUREL7EEVY2/bundle.json","state":"https://pith.science/pith/IUM3H4WEWF2Z3SXLUREL7EEVY2/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IUM3H4WEWF2Z3SXLUREL7EEVY2/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:IUM3H4WEWF2Z3SXLUREL7EEVY2","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":"a72159170165cffb98a8a10705f7cf80d8c59e79a05c2177517aaf6bc98593db","cross_cats_sorted":["hep-ph","hep-th"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2021-12-21T19:05:38Z","title_canon_sha256":"8de0f62b1f4f5f38d5de1deaadcf4a8650af8521d327bab868c119c6c4c8c436"},"schema_version":"1.0","source":{"id":"2112.11486","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2112.11486","created_at":"2026-07-05T04:33:27Z"},{"alias_kind":"arxiv_version","alias_value":"2112.11486v2","created_at":"2026-07-05T04:33:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2112.11486","created_at":"2026-07-05T04:33:27Z"},{"alias_kind":"pith_short_12","alias_value":"IUM3H4WEWF2Z","created_at":"2026-07-05T04:33:27Z"},{"alias_kind":"pith_short_16","alias_value":"IUM3H4WEWF2Z3SXL","created_at":"2026-07-05T04:33:27Z"},{"alias_kind":"pith_short_8","alias_value":"IUM3H4WE","created_at":"2026-07-05T04:33:27Z"}],"graph_snapshots":[{"event_id":"sha256:b16a95a0460f17d0f8da337154dab8aaba5a18e1e56878331b860b8d51fc7d20","target":"graph","created_at":"2026-07-05T04:33:27Z","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/2112.11486/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present a scenario for fast growth of cosmological perturbations; $\\delta(t) \\sim a(t)^s$, $a(t)$ being the scale factor, with $s > 10$ for the numerical examples reported in this article. The basic ingredients of the scenario are an early matter dominated era and the dark fermion which experiences a scalar mediated force during the epoch. Both of these arise in string/supergravity models. The fast growth occurs for sub-horizon density perturbations of the dark fermion. The fast growth has a rich set of phenomenological implications. We outline implications for the formation of primordial b","authors_text":"Anshuman Maharana, Francesco Muia, Subinoy Das","cross_cats":["hep-ph","hep-th"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2021-12-21T19:05:38Z","title":"A Faster Growth of Perturbations in an Early Matter Dominated Epoch: Primordial Black Holes and Gravitational Waves"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2112.11486","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":"sha256:52747fe144c029063e4b2e7b21a58df930373454a6514825a229cc250ef760e1","target":"record","created_at":"2026-07-05T04:33:27Z","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":"a72159170165cffb98a8a10705f7cf80d8c59e79a05c2177517aaf6bc98593db","cross_cats_sorted":["hep-ph","hep-th"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2021-12-21T19:05:38Z","title_canon_sha256":"8de0f62b1f4f5f38d5de1deaadcf4a8650af8521d327bab868c119c6c4c8c436"},"schema_version":"1.0","source":{"id":"2112.11486","kind":"arxiv","version":2}},"canonical_sha256":"4519b3f2c4b1759dcaeba448bf9095c69b55850907cde7888d937a268b7fa2e7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4519b3f2c4b1759dcaeba448bf9095c69b55850907cde7888d937a268b7fa2e7","first_computed_at":"2026-07-05T04:33:27.879951Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:33:27.879951Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Ahl1X+6eDQKWq7bRSM3ebKfLTXhFyUxApRzZCNPJD22AF6njf0ka4ZgPjs7HiGQP6wg9huFJ/6DQith/S5zBDA==","signature_status":"signed_v1","signed_at":"2026-07-05T04:33:27.880376Z","signed_message":"canonical_sha256_bytes"},"source_id":"2112.11486","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:52747fe144c029063e4b2e7b21a58df930373454a6514825a229cc250ef760e1","sha256:b16a95a0460f17d0f8da337154dab8aaba5a18e1e56878331b860b8d51fc7d20"],"state_sha256":"7af03256df73da474dbf93ab5b2b2830e8407fac418e48b498a7cf2a3a6bfb76"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BNejbUtOPcUzokD89vqtZDM0kWqbBCyGMTn+jx011WroFiX9supfgIPefVZBUpK4UT7AIJoZazeyHDBBCwApBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-05T11:14:58.387453Z","bundle_sha256":"37bfd43d3b61c7611ec3179b1fdf3fe44b724a7ee7386f237fc6872f64218459"}}