{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:HBISXFEMJBC66OK3ZW7HC34RQA","short_pith_number":"pith:HBISXFEM","canonical_record":{"source":{"id":"2010.11007","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2020-10-21T13:47:54Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"db0a38bf141627b17096ca1860138db4e8197340f6863a38a2915f70bff3e66c","abstract_canon_sha256":"de6ba6e0921168ea1435aacea207020fd18a67544536b5c041b9f4efad0dab85"},"schema_version":"1.0"},"canonical_sha256":"38512b948c4845ef395bcdbe716f9180246f45e217ca9c515e0279afba41157e","source":{"kind":"arxiv","id":"2010.11007","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2010.11007","created_at":"2026-07-05T03:16:06Z"},{"alias_kind":"arxiv_version","alias_value":"2010.11007v2","created_at":"2026-07-05T03:16:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2010.11007","created_at":"2026-07-05T03:16:06Z"},{"alias_kind":"pith_short_12","alias_value":"HBISXFEMJBC6","created_at":"2026-07-05T03:16:06Z"},{"alias_kind":"pith_short_16","alias_value":"HBISXFEMJBC66OK3","created_at":"2026-07-05T03:16:06Z"},{"alias_kind":"pith_short_8","alias_value":"HBISXFEM","created_at":"2026-07-05T03:16:06Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:HBISXFEMJBC66OK3ZW7HC34RQA","target":"record","payload":{"canonical_record":{"source":{"id":"2010.11007","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2020-10-21T13:47:54Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"db0a38bf141627b17096ca1860138db4e8197340f6863a38a2915f70bff3e66c","abstract_canon_sha256":"de6ba6e0921168ea1435aacea207020fd18a67544536b5c041b9f4efad0dab85"},"schema_version":"1.0"},"canonical_sha256":"38512b948c4845ef395bcdbe716f9180246f45e217ca9c515e0279afba41157e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:16:06.112334Z","signature_b64":"0SBzyxSVoUy7tPgrNpxt6BbX6fu7Ip8FymgDFRVLHEiUsg5U6ToU3FCs5PndOP6GgpQEnACd264gGeRZb+TZCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"38512b948c4845ef395bcdbe716f9180246f45e217ca9c515e0279afba41157e","last_reissued_at":"2026-07-05T03:16:06.111693Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:16:06.111693Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2010.11007","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":"2026-07-05T03:16:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4vY1xkmH0ODgJbA/dMvJMb87525NPerBj7Gc6zVpGLa4iKrNtMNsUxx+TRrCmuhtTdbRpTBEfZN98mnSP0IBCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-20T02:45:16.138462Z"},"content_sha256":"b7f67238256d342616a2388c9f128d8baeef8d72314670e24c0d14b8df9a65ba","schema_version":"1.0","event_id":"sha256:b7f67238256d342616a2388c9f128d8baeef8d72314670e24c0d14b8df9a65ba"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:HBISXFEMJBC66OK3ZW7HC34RQA","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Bounds on Dark Matter Annihilation Cross-sections from Inert Doublet Model in the context of 21 cm Cosmology of Dark Ages","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ph"],"primary_cat":"astro-ph.CO","authors_text":"Debasish Majumdar, Madhurima Pandey, Rupa Basu, Shibaji Banerjee","submitted_at":"2020-10-21T13:47:54Z","abstract_excerpt":"We study the fluctuations in the brightness temperature of 21-cm signal $\\delta T_{21}$ at the dark ages ($z\\sim100$) with a dark matter candidate in Inter Doublet Model (IDM). We then explore the effects of different fractions of IDM dark matter on $\\delta T_{21}$ signal. The IDM dark matter masses are chosen in few tens of GeV region as well as in the high mass region beyond 500 GeV. It has been observed that the $\\delta T_{21}$ signal is more sensitive in the dark matter mass range of $70 - 80$ GeV. A lower bound on annihilation cross-section for this dark matter is also obtained analyzing "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2010.11007","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/2010.11007/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":"2026-07-05T03:16:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0hIdP0icoSYCLHVYoOE3loqSIfcxoqyFvrwY5OCykiT5IsM7X4GkMT3fBXpsrvZD+ZlkqreMUL7MHoqzO+7kDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-20T02:45:16.139125Z"},"content_sha256":"d26096f63c1641270de03b493a06a3a3606d25a2113ac6baa5319ff52603468e","schema_version":"1.0","event_id":"sha256:d26096f63c1641270de03b493a06a3a3606d25a2113ac6baa5319ff52603468e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/HBISXFEMJBC66OK3ZW7HC34RQA/bundle.json","state_url":"https://pith.science/pith/HBISXFEMJBC66OK3ZW7HC34RQA/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/HBISXFEMJBC66OK3ZW7HC34RQA/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":"2026-08-20T02:45:16Z","links":{"resolver":"https://pith.science/pith/HBISXFEMJBC66OK3ZW7HC34RQA","bundle":"https://pith.science/pith/HBISXFEMJBC66OK3ZW7HC34RQA/bundle.json","state":"https://pith.science/pith/HBISXFEMJBC66OK3ZW7HC34RQA/state.json","well_known_bundle":"https://pith.science/.well-known/pith/HBISXFEMJBC66OK3ZW7HC34RQA/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:HBISXFEMJBC66OK3ZW7HC34RQA","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":"de6ba6e0921168ea1435aacea207020fd18a67544536b5c041b9f4efad0dab85","cross_cats_sorted":["hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2020-10-21T13:47:54Z","title_canon_sha256":"db0a38bf141627b17096ca1860138db4e8197340f6863a38a2915f70bff3e66c"},"schema_version":"1.0","source":{"id":"2010.11007","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2010.11007","created_at":"2026-07-05T03:16:06Z"},{"alias_kind":"arxiv_version","alias_value":"2010.11007v2","created_at":"2026-07-05T03:16:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2010.11007","created_at":"2026-07-05T03:16:06Z"},{"alias_kind":"pith_short_12","alias_value":"HBISXFEMJBC6","created_at":"2026-07-05T03:16:06Z"},{"alias_kind":"pith_short_16","alias_value":"HBISXFEMJBC66OK3","created_at":"2026-07-05T03:16:06Z"},{"alias_kind":"pith_short_8","alias_value":"HBISXFEM","created_at":"2026-07-05T03:16:06Z"}],"graph_snapshots":[{"event_id":"sha256:d26096f63c1641270de03b493a06a3a3606d25a2113ac6baa5319ff52603468e","target":"graph","created_at":"2026-07-05T03:16:06Z","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/2010.11007/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We study the fluctuations in the brightness temperature of 21-cm signal $\\delta T_{21}$ at the dark ages ($z\\sim100$) with a dark matter candidate in Inter Doublet Model (IDM). We then explore the effects of different fractions of IDM dark matter on $\\delta T_{21}$ signal. The IDM dark matter masses are chosen in few tens of GeV region as well as in the high mass region beyond 500 GeV. It has been observed that the $\\delta T_{21}$ signal is more sensitive in the dark matter mass range of $70 - 80$ GeV. A lower bound on annihilation cross-section for this dark matter is also obtained analyzing ","authors_text":"Debasish Majumdar, Madhurima Pandey, Rupa Basu, Shibaji Banerjee","cross_cats":["hep-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2020-10-21T13:47:54Z","title":"Bounds on Dark Matter Annihilation Cross-sections from Inert Doublet Model in the context of 21 cm Cosmology of Dark Ages"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2010.11007","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:b7f67238256d342616a2388c9f128d8baeef8d72314670e24c0d14b8df9a65ba","target":"record","created_at":"2026-07-05T03:16:06Z","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":"de6ba6e0921168ea1435aacea207020fd18a67544536b5c041b9f4efad0dab85","cross_cats_sorted":["hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2020-10-21T13:47:54Z","title_canon_sha256":"db0a38bf141627b17096ca1860138db4e8197340f6863a38a2915f70bff3e66c"},"schema_version":"1.0","source":{"id":"2010.11007","kind":"arxiv","version":2}},"canonical_sha256":"38512b948c4845ef395bcdbe716f9180246f45e217ca9c515e0279afba41157e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"38512b948c4845ef395bcdbe716f9180246f45e217ca9c515e0279afba41157e","first_computed_at":"2026-07-05T03:16:06.111693Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:16:06.111693Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"0SBzyxSVoUy7tPgrNpxt6BbX6fu7Ip8FymgDFRVLHEiUsg5U6ToU3FCs5PndOP6GgpQEnACd264gGeRZb+TZCw==","signature_status":"signed_v1","signed_at":"2026-07-05T03:16:06.112334Z","signed_message":"canonical_sha256_bytes"},"source_id":"2010.11007","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b7f67238256d342616a2388c9f128d8baeef8d72314670e24c0d14b8df9a65ba","sha256:d26096f63c1641270de03b493a06a3a3606d25a2113ac6baa5319ff52603468e"],"state_sha256":"f090865636e961fe02871703d47023078c93a6746a469e82174a909138a6a818"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ipOBv+QupdxwvA4IJvLcT0LkjdJWleTsnmO2O4mIU8Eovkb/7PoiqnrcfW1bdXaHcHbepbZyFNkZ5gQ8+0P6Ag==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-20T02:45:16.144327Z","bundle_sha256":"fbe3b7a0fbb2cb3bec4fc64100eb9a0b8e65ea17e0d2607685b059f124b032ce"}}