{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:7I2IWLHGW25RVI4UXPLY3ARUDD","short_pith_number":"pith:7I2IWLHG","canonical_record":{"source":{"id":"2202.05861","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2022-02-11T19:03:52Z","cross_cats_sorted":["astro-ph.CO","astro-ph.HE","gr-qc"],"title_canon_sha256":"676332a07e44baf7f355b820df3416470a01544cc8efc43eaaecce35ee0e1cef","abstract_canon_sha256":"fe466fb4a1c95cbede7ad644f219f989f2d6b9d8e2adecdfba291913593a80f2"},"schema_version":"1.0"},"canonical_sha256":"fa348b2ce6b6bb1aa394bbd78d823418d3e5740a0639371772b027121b86d091","source":{"kind":"arxiv","id":"2202.05861","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2202.05861","created_at":"2026-07-05T03:56:18Z"},{"alias_kind":"arxiv_version","alias_value":"2202.05861v1","created_at":"2026-07-05T03:56:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2202.05861","created_at":"2026-07-05T03:56:18Z"},{"alias_kind":"pith_short_12","alias_value":"7I2IWLHGW25R","created_at":"2026-07-05T03:56:18Z"},{"alias_kind":"pith_short_16","alias_value":"7I2IWLHGW25RVI4U","created_at":"2026-07-05T03:56:18Z"},{"alias_kind":"pith_short_8","alias_value":"7I2IWLHG","created_at":"2026-07-05T03:56:18Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:7I2IWLHGW25RVI4UXPLY3ARUDD","target":"record","payload":{"canonical_record":{"source":{"id":"2202.05861","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2022-02-11T19:03:52Z","cross_cats_sorted":["astro-ph.CO","astro-ph.HE","gr-qc"],"title_canon_sha256":"676332a07e44baf7f355b820df3416470a01544cc8efc43eaaecce35ee0e1cef","abstract_canon_sha256":"fe466fb4a1c95cbede7ad644f219f989f2d6b9d8e2adecdfba291913593a80f2"},"schema_version":"1.0"},"canonical_sha256":"fa348b2ce6b6bb1aa394bbd78d823418d3e5740a0639371772b027121b86d091","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:56:18.663209Z","signature_b64":"GlhivzyOhHGD13obWMOu9d0+ZQ5Fk1wN+LLRdOldsVLv3fvVNIVuAMmZlCEdwuZzvcCtC6GMlvPMEQmD8lBCDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fa348b2ce6b6bb1aa394bbd78d823418d3e5740a0639371772b027121b86d091","last_reissued_at":"2026-07-05T03:56:18.662738Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:56:18.662738Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2202.05861","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":"2026-07-05T03:56:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"N16ZBoykFiwajeLTbVdEFaCRyuWyk9sIpOKHYFrsNGpQP3K26CigcmbFG5h18A4lfuH9llgZjRkqfmfdfPkQDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-23T01:00:49.018897Z"},"content_sha256":"a333ccdadc9148d835127a67725edc4693c323c9fe5e05ecddb75c58c5b61ee5","schema_version":"1.0","event_id":"sha256:a333ccdadc9148d835127a67725edc4693c323c9fe5e05ecddb75c58c5b61ee5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:7I2IWLHGW25RVI4UXPLY3ARUDD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A uniform stellar origin for binary black holes revealed by lensing","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.CO","astro-ph.HE","gr-qc"],"primary_cat":"astro-ph.GA","authors_text":"G.F. Smoot, J.M. Diego, T. Broadhurst","submitted_at":"2022-02-11T19:03:52Z","abstract_excerpt":"Although most gravitational wave events are claimed to be mergers of unusually massive, $25-65M_\\odot$, black holes, it is now clear that 20\\% of all reported events comprise modest mass black holes, $5-15M_\\odot$, like the stellar black holes in the Milky Way. We show that such stellar mass black hole binaries (BBH) if magnified by lensing galaxies can be detected at high redshift, 1$< $z$ <$5, with chirp masses increased by $1+z$, accounting for the majority of apparently high mass BBH events. This simple lensing explanation is manifested by the evident bimodality of BBH chirp masses now vis"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2202.05861","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/2202.05861/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":"2026-07-05T03:56:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xtfuKtSbA6ihhEiGztT2JdnvGHfu2oUcqCX3h8+DJbi2b0QGARqZ+3ZoykWm01atOmyuHUWZuo8DAxCuHGkyCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-23T01:00:49.019419Z"},"content_sha256":"25d7eb46031863e6e74ec7c1cf319b4cd46800e3b69b1d40599b06d8927d76f5","schema_version":"1.0","event_id":"sha256:25d7eb46031863e6e74ec7c1cf319b4cd46800e3b69b1d40599b06d8927d76f5"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7I2IWLHGW25RVI4UXPLY3ARUDD/bundle.json","state_url":"https://pith.science/pith/7I2IWLHGW25RVI4UXPLY3ARUDD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7I2IWLHGW25RVI4UXPLY3ARUDD/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":"2026-08-23T01:00:49Z","links":{"resolver":"https://pith.science/pith/7I2IWLHGW25RVI4UXPLY3ARUDD","bundle":"https://pith.science/pith/7I2IWLHGW25RVI4UXPLY3ARUDD/bundle.json","state":"https://pith.science/pith/7I2IWLHGW25RVI4UXPLY3ARUDD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7I2IWLHGW25RVI4UXPLY3ARUDD/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:7I2IWLHGW25RVI4UXPLY3ARUDD","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":"fe466fb4a1c95cbede7ad644f219f989f2d6b9d8e2adecdfba291913593a80f2","cross_cats_sorted":["astro-ph.CO","astro-ph.HE","gr-qc"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2022-02-11T19:03:52Z","title_canon_sha256":"676332a07e44baf7f355b820df3416470a01544cc8efc43eaaecce35ee0e1cef"},"schema_version":"1.0","source":{"id":"2202.05861","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2202.05861","created_at":"2026-07-05T03:56:18Z"},{"alias_kind":"arxiv_version","alias_value":"2202.05861v1","created_at":"2026-07-05T03:56:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2202.05861","created_at":"2026-07-05T03:56:18Z"},{"alias_kind":"pith_short_12","alias_value":"7I2IWLHGW25R","created_at":"2026-07-05T03:56:18Z"},{"alias_kind":"pith_short_16","alias_value":"7I2IWLHGW25RVI4U","created_at":"2026-07-05T03:56:18Z"},{"alias_kind":"pith_short_8","alias_value":"7I2IWLHG","created_at":"2026-07-05T03:56:18Z"}],"graph_snapshots":[{"event_id":"sha256:25d7eb46031863e6e74ec7c1cf319b4cd46800e3b69b1d40599b06d8927d76f5","target":"graph","created_at":"2026-07-05T03:56:18Z","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/2202.05861/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Although most gravitational wave events are claimed to be mergers of unusually massive, $25-65M_\\odot$, black holes, it is now clear that 20\\% of all reported events comprise modest mass black holes, $5-15M_\\odot$, like the stellar black holes in the Milky Way. We show that such stellar mass black hole binaries (BBH) if magnified by lensing galaxies can be detected at high redshift, 1$< $z$ <$5, with chirp masses increased by $1+z$, accounting for the majority of apparently high mass BBH events. This simple lensing explanation is manifested by the evident bimodality of BBH chirp masses now vis","authors_text":"G.F. Smoot, J.M. Diego, T. Broadhurst","cross_cats":["astro-ph.CO","astro-ph.HE","gr-qc"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2022-02-11T19:03:52Z","title":"A uniform stellar origin for binary black holes revealed by lensing"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2202.05861","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:a333ccdadc9148d835127a67725edc4693c323c9fe5e05ecddb75c58c5b61ee5","target":"record","created_at":"2026-07-05T03:56:18Z","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":"fe466fb4a1c95cbede7ad644f219f989f2d6b9d8e2adecdfba291913593a80f2","cross_cats_sorted":["astro-ph.CO","astro-ph.HE","gr-qc"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2022-02-11T19:03:52Z","title_canon_sha256":"676332a07e44baf7f355b820df3416470a01544cc8efc43eaaecce35ee0e1cef"},"schema_version":"1.0","source":{"id":"2202.05861","kind":"arxiv","version":1}},"canonical_sha256":"fa348b2ce6b6bb1aa394bbd78d823418d3e5740a0639371772b027121b86d091","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fa348b2ce6b6bb1aa394bbd78d823418d3e5740a0639371772b027121b86d091","first_computed_at":"2026-07-05T03:56:18.662738Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:56:18.662738Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"GlhivzyOhHGD13obWMOu9d0+ZQ5Fk1wN+LLRdOldsVLv3fvVNIVuAMmZlCEdwuZzvcCtC6GMlvPMEQmD8lBCDA==","signature_status":"signed_v1","signed_at":"2026-07-05T03:56:18.663209Z","signed_message":"canonical_sha256_bytes"},"source_id":"2202.05861","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a333ccdadc9148d835127a67725edc4693c323c9fe5e05ecddb75c58c5b61ee5","sha256:25d7eb46031863e6e74ec7c1cf319b4cd46800e3b69b1d40599b06d8927d76f5"],"state_sha256":"442bf039701acba886ce85032d2db3306ea596d651be484588fb3b39ff066279"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NAl9sXt2vlUNB7mMl4p17+qX8Mjq6ZG5QQ2Ug8ffhv7VRBbsInQKpsNZvyv9/reXp9JDdsQgGPfVkZgGqqEgAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-23T01:00:49.023437Z","bundle_sha256":"16a5240469476bbee73f9313c6de85d4761f5b340126a3ee9a8c15242007c4c9"}}